src
stringlengths
95
64.6k
complexity
stringclasses
7 values
problem
stringlengths
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import java.util.*; public class vas2 { public static void main( String[] args ) { Scanner in = new Scanner( System.in ); int n = in.nextInt(); String st = in.next(); int[] a = new int[n]; for ( int i = 0; i < n; i++ ) a[i] = st.charAt( i ) - 48; boolean c = false; for ( int i = 1; !c && i < n; i++ ) {...
quadratic
1030_C. Vasya and Golden Ticket
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; /** * @author Don Li */ public class LogicalExpression { int N = 256; void solve() { Expression[] E = new Expression[N]; for (in...
quadratic
913_E. Logical Expression
CODEFORCES
import java.util.*; import java.io.*; public class FirstClass { public static void main(String[] args)throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); PrintWriter out = new PrintWriter(System.out); int n = Integer.parseInt(br.readLine()); int arr[] = new ...
linear
1054_B. Appending Mex
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class AnnoyingPresent { //UPSOLVED public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String...
linear
1009_C. Annoying Present
CODEFORCES
import java.util.*; import java.io.*; import java.lang.reflect.Array; public class codeforces { public static void main(String[] args) { InputReader in = new InputReader(System.in); PrintWriter pw = new PrintWriter(System.out); int n = in.nextInt(); long U = in.nextLong(); long[] E = ne...
nlogn
957_C. Three-level Laser
CODEFORCES
import java.io.DataInputStream; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.util.Scanner; import java.util.StringTokenizer; import java.io.BufferedReader; import java.util.*; public class Main { static Graph graph[]; public static void add_edge(in...
linear
1029_C. Maximal Intersection
CODEFORCES
import java.util.*; public class ehab4 { public static void main( String[] args ) { Scanner in = new Scanner( System.in ); int a = 0, b = 0; System.out.println( "? 0 0 " ); System.out.flush(); int c = in.nextInt(); for ( int i = 29; i >= 0; i-- ) { System.out.println( "? " + ( a + ( 1 << i ) ) + ...
logn
1088_D. Ehab and another another xor problem
CODEFORCES
import java.util.*; import java.io.*; import java.math.*; public class Main { public static void main(String[] args) throws IOException { PrintWriter out = new PrintWriter(System.out); //Scanner sc = new Scanner(); Reader in = new Reader(); Main solver = new Main(); solver....
nlogn
958_B2. Maximum Control (medium)
CODEFORCES
import static java.lang.Integer.parseInt; import static java.lang.Long.parseLong; import static java.lang.Math.min; import static java.lang.System.exit; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public cla...
linear
1091_F. New Year and the Mallard Expedition
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Test3 { public static void main(String[] args) throws NumberFormatException, IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int x=Integer.parseInt(br.readLine()); int ...
constant
913_A. Modular Exponentiation
CODEFORCES
import java.util.*; import java.io.*; import java.math.*; public class Solution{ public static void main(String[] args)throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int t = Integer.parseInt(br.readLine()); StringTokenizer st; for(int z=...
linear
1197_A. DIY Wooden Ladder
CODEFORCES
// discussed with rainboy import java.io.*; import java.util.*; public class CF915D { static ArrayList[] aa; static boolean[] visited, instack; static int[] stack; static int cnt, h_, i_, j_; static boolean dfs1(int i) { if (visited[i]) { if (instack[i]) { h_ = i; return true; } return false; ...
quadratic
915_D. Almost Acyclic Graph
CODEFORCES
//package fourninetysixDiv3; import java.util.HashMap; import java.util.Scanner; public class Median_Segments_general { public static void main(String[] args) { Scanner s = new Scanner(System.in); int n = s.nextInt(); int m = s.nextInt(); int[] arr = new int[n]; for (int i = 0; i < n; i++) { arr[i] = s.n...
nlogn
1005_E1. Median on Segments (Permutations Edition)
CODEFORCES
import java.io.*; import java.util.*; public class Main { private static void solve(InputReader in, OutputWriter out) { int n = in.nextInt(); List<List<Integer>> g = new ArrayList<>(n + 1); for (int i = 0; i < n + 1; i++) { g.add(new LinkedList<>()); } int deg...
linear
981_C. Useful Decomposition
CODEFORCES
// practice with rainboy import java.io.*; import java.util.*; public class CF903F { static final int INF = 0x3f3f3f3f; static void fill(int[][][][] aa, int a) { for (int h0 = 0; h0 <= 4; h0++) for (int h1 = 0; h1 <= 4; h1++) for (int h2 = 0; h2 <= 4; h2++) for (int h3 = 0; h3 <= 4; h3++) aa[h0][...
linear
903_F. Clear The Matrix
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class SFly { public static void main(String[] args) throws IOException { BufferedReader lector = new BufferedReader(new InputStreamReader(System.in)); int planet = Integer.parseInt(lector.readLine()); int ini...
linear
1010_A. Fly
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper plug-in * Actual soluti...
nlogn
1000_G. Two-Paths
CODEFORCES
import java.io.*; import java.lang.*; import java.util.*; public class alex { public static void main(String[] args)throws IOException { Scanner sc=new Scanner(System.in); int n=sc.nextInt();int sum=1; for(int i=1;i<=n;i++) { sum=sum+(4*(i-1)); } Syste...
linear
1180_A. Alex and a Rhombus
CODEFORCES
import java.io.*; import java.lang.reflect.Array; import java.util.*; import java.math.*; import java.lang.*; import static java.lang.Math.*; public class TaskB implements Runnable { boolean prime[] = new boolean[(int)1e6+10]; InputReader c; PrintWriter w; public void run() { c = new InputRea...
linear
608_B. Hamming Distance Sum
CODEFORCES
import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.StringTokenizer; public class cf2 { static final double EPS = 1e-9; public static void main(String[] args) thro...
constant
994_C. Two Squares
CODEFORCES
//q4 import java.io.*; import java.util.*; import java.math.*; public class q4 { public static void main(String[] args) { Scanner in = new Scanner(System.in); int query = in.nextInt(); while (query -- > 0) { int n = in.nextInt(); int k = in.nextIn...
quadratic
1196_D2. RGB Substring (hard version)
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.io.OutputStream; import java.util.List; import java.util.Arrays; import java.util.InputMismatchException; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; /** ...
linear
1067_B. Multihedgehog
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class AAA { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTok...
constant
1028_B. Unnatural Conditions
CODEFORCES
import java.util.*; import java.io.*; import java.lang.*; import java.math.*; public class B { public static void main(String[] args) throws Exception { BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); PrintWriter out = new PrintWriter(new Out...
linear
1190_B. Tokitsukaze, CSL and Stone Game
CODEFORCES
//package ContestEd69; import java.io.*; import java.util.StringTokenizer; public class mainD { public static PrintWriter out = new PrintWriter(System.out); public static FastScanner enter = new FastScanner(System.in); public static long[] arr; public static void main(String[] args) throws IOException...
quadratic
1197_D. Yet Another Subarray Problem
CODEFORCES
import java.util.*; import java.lang.*; public class Main { static long m = 1000000007; static long powmod(long x, long y, long p) { // Initialize result long res = 1; // Update x if it is more // than or equal to p x = x % p; while (y > 0) { ...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.util.*; import java.io.*; import java.lang.*; import java.math.*; import java.util.Map.*; public class codeforces { static int count =0; static boolean f=false; static int [] arr; static PrintWriter pw=new PrintWriter(System.out); static void solve(int index , int mask) { if(index==arr.l...
nlogn
994_B. Knights of a Polygonal Table
CODEFORCES
import java.io.*; import java.util.*; public class Codeforces913F { public static void main(String[] args) throws IOException { Scanner input = new Scanner(System.in); int n = input.nextInt(); int a = input.nextInt(); int b = input.nextInt(); input.close(); final int mod = 998244353; int frac = multi...
quadratic
913_F. Strongly Connected Tournament
CODEFORCES
import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { new Main().go(); } PrintWriter out; Reader in; BufferedReader br; Main() throws IOException { try { //br = new BufferedReader( new FileReader("in...
quadratic
1015_E2. Stars Drawing (Hard Edition)
CODEFORCES
import java.util.*; import java.io.*; import java.math.*; public class Solution{ public static void main(String[] args)throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); StringTokenizer st = new StringTokeniz...
linear
1197_B. Pillars
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class Solve4 { public static void main(String[] args) throws IOException { FastReader sc = new FastReader(); int x= sc.nextInt(); int y= sc.nextInt(); int z...
constant
1054_A. Elevator or Stairs?
CODEFORCES
import java.util.Scanner; public class codef8 { public static void main(String[] args) { // TODO Auto-generated method stub Scanner sc = new Scanner(System.in); int num = sc.nextInt(); int beacon[] = new int[1000001]; int pos[] = new int[num]; for (int i = 0; i < num; i++) { int position = sc.nextInt...
linear
608_C. Chain Reaction
CODEFORCES
import java.io.*; public class coins { public static void main(String args[])throws IOException { InputStreamReader read=new InputStreamReader(System.in); BufferedReader in=new BufferedReader(read); int i,k,n,v; String a; a=in.readLine(); for(i=0;i<a.length();i++) { if(a.charAt(i)==' ') break; }...
constant
1061_A. Coins
CODEFORCES
import java.io.*; public class First { StreamTokenizer in; PrintWriter out; int nextInt() throws IOException { in.nextToken(); return (int)in.nval; } long nextLong() throws IOException { in.nextToken(); return (long) in.nval; } String nextString() throws ...
linear
1011_A. Stages
CODEFORCES
import java.io.*; import java.util.*; public class p7{ static class FastReader{ BufferedReader br; StringTokenizer st; public FastReader() { br = new BufferedReader(new InputStreamReader(System.in)); } String next() { while (st == null || !st.hasMoreElements()) { try ...
nlogn
1054_D. Changing Array
CODEFORCES
import java.util.Scanner; import java.util.Vector; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); int a[] = new int[n]; int b[] = new int[n]; for (int i = 0; i < n; i++) ...
nlogn
1010_A. Fly
CODEFORCES
import java.util.Scanner; public class FUck { public static void main(String args[]) { Scanner scan=new Scanner(System.in); int n=scan.nextInt(); int k=scan.nextInt(); String t=scan.next(); int mx=0; for(int i=1;i<n;i++) { int gd=1; for(int j=0;j<i;j++) { if(t.charAt(j...
quadratic
1029_A. Many Equal Substrings
CODEFORCES
import java.util.*; import java.io.*; public class A { public static void main(String ar[]) throws Exception { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); String s1[]=br.readLine().split(" "); String s2[]=br.readLine().split(" "); i...
linear
1000_B. Light It Up
CODEFORCES
import java.util.*; public class Main { public static void main(String[] args) { Scanner in =new Scanner(System.in); int n = in.nextInt(); int k = in.nextInt(); int[] arr = new int[n]; for(int i = 0; i < n; i++) arr[i] = in.nextInt(); for(int i = n-1; i > 0; i--) arr[i] -= arr[i-1]; arr[0] = 0; A...
nlogn
1197_C. Array Splitting
CODEFORCES
import java.util.*; import java.lang.*; import java.math.*; import java.io.*; /* spar5h */ public class cf1 implements Runnable{ public void run() { InputReader s = new InputReader(System.in); PrintWriter w = new PrintWriter(System.out); int t = 1; while(t-- > 0) { int n = s.nextInt(), m ...
linear
1010_A. Fly
CODEFORCES
import java.io.*; import java.util.Arrays; import java.util.Comparator; import java.util.StringTokenizer; import java.util.stream.IntStream; public class B { public static void main(String[] args) { InputStream inputStream = System.in; OutputStream outputStream = System.out; InputReader in ...
logn
1019_B. The hat
CODEFORCES
import java.util.*; import java.math.*; public class Solution{ private long [] sums; private void solve(){ Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); int k = sc.nextInt(); int [] arr = new int[n]; this.sums = new long[n]; ...
quadratic
1197_D. Yet Another Subarray Problem
CODEFORCES
import java.util.*; public class Main { public static void main(String args[]) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); long totalBlocks = 0; long a[] = new long[n]; for(int i = 0; i < n; ++i) { a[i] = sc.nextLo...
nlogn
1061_B. Views Matter
CODEFORCES
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ import java.util.ArrayList; import java.util.Scanner; /** * * @author Ahmed */ public class Watermelon { static class Pas...
linear
608_A. Saitama Destroys Hotel
CODEFORCES
import java.util.*; import java.io.*; public class MinimumDiameterTree{ public static void main(String[] args) { InputReader in = new InputReader (System.in); PrintWriter out = new PrintWriter (System.out); int n = in.nextInt(); int s = in.nextInt(); int deg[] = new int [n]; for (int i = 1; i < n; ++i) { ...
linear
1086_B. Minimum Diameter Tree
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; /** * * @author Antonio "Teo" Alurralde */ public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReade...
constant
1033_A. King Escape
CODEFORCES
/** * Created by Aminul on 3/14/2019. */ import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; import static java.lang.Math.max; public class E_2 { public static void main(String[] args) throws Exception { F...
linear
1082_E. Increasing Frequency
CODEFORCES
import java.util.Scanner; public class TreasureHunt { public static String Solve() { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); sc.nextLine(); String kuro = sc.nextLine(), shiro = sc.nextLine(), katie = sc.nextLine(); sc.close(); String[] output = {"Kuro", "Shiro", "Katie", "Draw"}; if...
linear
979_B. Treasure Hunt
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class CF1197B { public static void main(String[] args) { FastReader input = new FastReader(); int n = input.nextInt(); int[] arr = new int[n]; int ma...
linear
1197_B. Pillars
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.math.BigInteger; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHe...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.io.*; import java.math.*; import java.util.*; // author @mdazmat9 public class codeforces{ public static void main(String[] args) throws IOException { Scanner sc = new Scanner(System.in); PrintWriter out = new PrintWriter(System.out); int test = 1; for (int ind = 0; i...
constant
911_C. Three Garlands
CODEFORCES
import java.io.*; import java.util.*; public class Main { static InputReader in = new InputReader(System.in); static PrintWriter out = new PrintWriter(System.out); static long oo = 1000000000000L; public static void main(String[] args) throws IOException { int n = in.nextInt(); int q = in.nextInt()...
linear
1180_C. Valeriy and Deque
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class AAA { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTok...
constant
1028_B. Unnatural Conditions
CODEFORCES
import java.io.BufferedOutputStream; import java.io.PrintWriter; import java.util.*; public class E1180D { public static void main(String args[]) { Scanner sc = new Scanner(System.in); PrintWriter pw = new PrintWriter(new BufferedOutputStream(System.out)); int n = sc.nextInt(); in...
quadratic
1179_B. Tolik and His Uncle
CODEFORCES
import java.util.*; import java.io.*; import java.lang.*; import java.math.*; public class C { public static void main(String[] args) throws Exception { BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); // Scanner scan = new Scanner(System.in); PrintWriter out = new P...
linear
1067_C. Knights
CODEFORCES
import java.util.*; public class Main { public static void main(String args[]) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); long totalBlocks = 0; long a[] = new long[n]; for(int i = 0; i < n; ++i) { a[i] = sc.nextLo...
nlogn
1061_B. Views Matter
CODEFORCES
import java.util.Scanner; public class codef8 { public static void main(String[] args) { // TODO Auto-generated method stub Scanner sc = new Scanner(System.in); int num = sc.nextInt(); int beacon[] = new int[1000001]; int pos[] = new int[num]; for (int i = 0; i < num; i++) { int position = sc.nextInt...
linear
608_C. Chain Reaction
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper plug-in * Actual soluti...
quadratic
911_D. Inversion Counting
CODEFORCES
import com.sun.org.apache.xpath.internal.operations.Bool; import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { MyScanner scan = new MyScanner(); out = new PrintWriter(new BufferedOutputStream(System.out)); int n = scan.nextIn...
nlogn
1033_C. Permutation Game
CODEFORCES
import java.io.*; import java.util.*; public class Main { public void solve() { int n = ni(); int a = ni(); int b = ni(); long ans = 0; HashMap<Long, Long> m = new HashMap<>(); HashMap<String, Long> s = new HashMap<>(); for (int i = 0; i < n; i++) { ...
linear
975_D. Ghosts
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public class pr1073B { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System....
linear
1073_B. Vasya and Books
CODEFORCES
import java.io.*; import java.util.*; public class LectureSleep { static class InputReader { BufferedReader reader; StringTokenizer tokenizer; public InputReader(InputStream stream) { reader = new BufferedReader(new InputStreamReader(stream), 32768); tokenizer = nu...
linear
961_B. Lecture Sleep
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class C { public static int mod = 1000000000 + 7; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String n = br.readLine(); ...
linear
914_C. Travelling Salesman and Special Numbers
CODEFORCES
import java.io.BufferedReader; import java.io.PrintWriter; import java.io.InputStreamReader; import java.io.IOException; import java.util.StringTokenizer; import java.util.Arrays; public class Main { static Scanner in = new Scanner(); static PrintWriter out = new PrintWriter(System.out); publ...
constant
1036_A. Function Height
CODEFORCES
import com.sun.org.apache.xerces.internal.util.SynchronizedSymbolTable; import jdk.management.cmm.SystemResourcePressureMXBean; import java.awt.*; import java.io.*; import java.lang.reflect.Array; import java.text.DecimalFormat; import java.util.*; import java.util.List; import java.math.*; public class Newbie { ...
quadratic
995_B. Suit and Tie
CODEFORCES
import java.io.*; import java.util.*; public class Main { private static void solve(InputReader in, OutputWriter out) { int n = in.nextInt(); int m = in.nextInt(); String[] sa = new String[n]; for (int i = 0; i < n; i++) { sa[i] = in.next(); } Set<Inte...
quadratic
985_B. Switches and Lamps
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Scanner; public class CodeForces { public static void main(String[] args) { Scanner input = new Scanner(new BufferedReader(new InputStreamReader(System.in))); System.out.println(input.nextInt() / 2 + 1); } }
constant
964_A. Splits
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class MicroWorld { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = ne...
nlogn
990_B. Micro-World
CODEFORCES
import java.util.*; import java.io.*; public class SonyaExhibition { static BufferedReader br; static StringTokenizer tokenizer; public static void main(String[] args) throws Exception { br = new BufferedReader(new InputStreamReader(System.in)); int n = nextInt(); int[] arr = {0,1}; for(int i = 0; i < n; i...
linear
1004_B. Sonya and Exhibition
CODEFORCES
import java.io.*; import java.util.*; public class ayyyyyy { public static void main(String[] args) { new ayyyyyy(); } Scanner in = new Scanner(System.in); PrintWriter out = new PrintWriter(System.out); int t, n; int[] a; ayyyyyy() { t = in.nextInt(); while (t --> 0) { a = new int[n = in.nextInt()]...
nlogn
1197_A. DIY Wooden Ladder
CODEFORCES
//package contese_476; import java.util.*; public class q1 { int m=(int)1e9+7; public class Node { int a; int b; public void Node(int a,int b) { this.a=a; this.b=b; } } public int mul(int a ,int b) { a=a%m; b=b%m; return((a*b)%m); } public int pow(int a,int b) { int x=1; while(b>0) { if(b%2!=0) x=mul...
linear
1013_B. And
CODEFORCES
import java.io.OutputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparat...
quadratic
1000_A. Codehorses T-shirts
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.io.BufferedWriter; import java.io.Writer; import java.io.OutputStreamWriter; import java.util.InputMismatchException; import java.io.IOException; import java.io.Input...
quadratic
961_C. Chessboard
CODEFORCES
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner read = new Scanner(System.in); double a = (double)read.nextInt(); double v = (double)read.nextInt(); double l = (double)read.nextInt(); double d = (double)read.nextInt(); ...
constant
5_D. Follow Traffic Rules
CODEFORCES
import java.util.*; import java.io.*; public class A { public static void main(String ar[]) throws Exception { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); String s1[]=br.readLine().split(" "); int n=Integer.parseInt(s1[0]); int m=In...
nlogn
1061_B. Views Matter
CODEFORCES
import java.util.Arrays; import java.util.Scanner; public class Solution { private static int[] a; public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(), m = sc.nextInt(); a = new int[101]; for (int i = 0; i < m; i++) { ...
nlogn
1011_B. Planning The Expedition
CODEFORCES
import java.util.*; public class ErrorCorrectSystem { public static void main(String[] args) { Scanner scan = new Scanner(System.in); int n = scan.nextInt(); String a = scan.next(); String b = scan.next(); int[][] mismatch = new int[26][26]; for(int i = 0; i < 26; i++) Arrays.fill(mismatch[i], -1); ...
linear
527_B. Error Correct System
CODEFORCES
import java.io.*; import java.util.Arrays; import java.util.Random; import java.util.StringJoiner; import java.util.StringTokenizer; import java.util.concurrent.ThreadLocalRandom; import java.util.function.Function; public class Main { static int T; public static void main(String[] args) { FastScanne...
nlogn
1027_C. Minimum Value Rectangle
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.OutputStreamWriter; public class ElevatorOrStairs { private static final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); private static final OutputStreamWriter writer = new OutputStreamWriter(System.out); ...
constant
1054_A. Elevator or Stairs?
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.HashSet; import java.util.InputMismatchException; public class Solution1 implements Runnable { static final lo...
linear
527_B. Error Correct System
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class SFly { public static void main(String[] args) throws IOException { BufferedReader lector = new BufferedReader(new InputStreamReader(System.in)); int planet = Integer.parseInt(lector.readLine()); int ini...
linear
1010_A. Fly
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.util.HashMap; import java.util.Map; import java.util.StringTokenizer; public class Main { static BufferedReader in=new BufferedReader(new InputStreamReader(System.in)); st...
nlogn
1005_E1. Median on Segments (Permutations Edition)
CODEFORCES
import java.util.HashSet; import java.util.Scanner; public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); HashSet<Integer> set = new HashSet<>(); for(int i = 0; i<n; i++){ int a = sc.nextInt(); ...
linear
992_A. Nastya and an Array
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Scanner; public class Solution { private static int[] dx = { -1, -1, -1, 0, 0, 1, 1, 1}; private static int[] dy = { -1, 0, 1, -1, 1, -1, 0, 1}; public ...
quadratic
1059_B. Forgery
CODEFORCES
import java.util.*; public class Main { public static void main(String args[]) { Scanner scan = new Scanner(System.in); int n=scan.nextInt(); int m=scan.nextInt(); int[] game=new int[n]; int[] bill=new int[m]; for (int i = 0; i <n ; i++) { game[i]=scan.ne...
linear
1009_A. Game Shopping
CODEFORCES
import java.math.BigInteger; import java.util.*; import java.util.stream.Collectors; import java.util.stream.IntStream; import java.util.stream.Stream; public class Practice { public static void main(String []args) { Scanner sc=new Scanner(System.in); int n=sc.nextInt(); sc.nextLine(); String s...
linear
976_A. Minimum Binary Number
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.InputMismatchException; import java.io.IOException; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top * * @author Pradyumn */ public class M...
logn
1019_B. The hat
CODEFORCES
import java.util.*; import java.io.*; public class C{ static PrintWriter out; static InputReader in; public static void main(String args[]){ out = new PrintWriter(System.out); in = new InputReader(); new C(); out.flush(); out.close(); } C(){ int a = solve();...
linear
1190_C. Tokitsukaze and Duel
CODEFORCES
import java.util.*; import java.io.*; import java.util.Map.Entry; public class Codeforces { static int n; static double max; static int[] pre; public static void findIntensity(int l){ for(int i = 0, j = i + l; j < n + 1; i++, j++){ double res = (pre[j] - pre[i]) / (double) l; ...
quadratic
1003_C. Intense Heat
CODEFORCES
import java.util.*; import java.io.*; public class code{ public static void main(String[] args) throws IOException{ Scanner sc = new Scanner(System.in); PrintWriter out = new PrintWriter(System.out); int ok,ok2; int va,vb; va = 0; vb = 0; out.println("? "+va+"...
logn
1088_D. Ehab and another another xor problem
CODEFORCES
import java.io.*; import java.util.*; public class Main { private static void solve(InputReader in, OutputWriter out) { int n = in.nextInt(); if (n < 6) { out.println(-1); } else { int m = (n - 2); for (int i = 2; i <= m; i++) { out.prin...
linear
959_C. Mahmoud and Ehab and the wrong algorithm
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.lang.reflect.Array; import java.util.Arrays; import java.util.Comparator; import java.util.StringTokenizer; import java.util.function.Function; public class P1196D2 { static boolea...
quadratic
1196_D2. RGB Substring (hard version)
CODEFORCES
import java.io.*; import java.util.*; import java.lang.*; import static java.lang.Math.*; // _ h _ r _ t r _ // _ t _ t _ s t _ public class TaskA implements Runnable { long m = (int)1e9+7; PrintWriter w; InputReader c; final int MAXN = (int)1e6 + 100; public void run() { c = new Input...
linear
527_B. Error Correct System
CODEFORCES
import java.io.*; import java.util.*; public class CF1009E { static final int MD = 998244353; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); StringTokenizer st = new StringTokenizer(b...
linear
1009_E. Intercity Travelling
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.util.Arrays; import java.util.InputMismatchException; import java.io.OutputStreamWriter; import java.util.NoSuchElementException; import java.io.OutputStream; import java.io.PrintWriter; import java.util.Iterator; import ja...
nlogn
528_B. Clique Problem
CODEFORCES
import java.util.LinkedList; import java.util.List; import java.util.Scanner; import java.util.stream.Collectors; public class PlayingPiano { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int n = scanner.nextInt(); List<Integer> as = new LinkedList<>(); int[] as2 =...
linear
1032_C. Playing Piano
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper plug-in * Actual soluti...
quadratic
1027_E. Inverse Coloring
CODEFORCES
import java.util.Scanner; public class A961_Tetris { public static void main(String[] args) { Scanner input = new Scanner(System.in); int platforms = input.nextInt(); int in = input.nextInt(); int[] cols = new int[platforms]; int[] squares = new int[in]; for (int i = 0; i < in; i ++) { squares[i...
quadratic
961_A. Tetris
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; import static java.lang.Math.*; public class Main { private FastScanner scanner = new FastScanner(); public static void main(String[] args) { new Main().solve(); } private void ...
linear
990_C. Bracket Sequences Concatenation Problem
CODEFORCES
import java.util.*; import java.io.*; import java.math.*; public class loser { static class InputReader { public BufferedReader br; public StringTokenizer token; public InputReader(InputStream stream) { br=new BufferedReader(new InputStreamReader(stream),32768); ...
constant
965_A. Paper Airplanes
CODEFORCES