src
stringlengths
95
64.6k
complexity
stringclasses
7 values
problem
stringclasses
256 values
from
stringclasses
1 value
import java.io.*; import java.util.*; public class CF1027D { 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(br.readLine()); int[] cc = new in...
linear
1027_D. Mouse Hunt
CODEFORCES
//package round43; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public class C { static BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); static StringTokenizer st; static PrintWri...
linear
46_C. Hamsters and Tigers
CODEFORCES
import java.io.*; import java.util.*; public class CF387D { static class A { ArrayList<Integer> list = new ArrayList<>(); int u, v, d; } static int INF = Integer.MAX_VALUE; static boolean bfs(A[] aa, int n) { LinkedList<Integer> q = new LinkedList<>(); for (int u = 1; u <= n; u++) if (aa[u].v > 0) a...
cubic
387_D. George and Interesting Graph
CODEFORCES
import java.io.InputStream; import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.BufferedWriter; import java.io.Writer; import java.io.OutputStreamWriter; import java.util.HashMap; import java.io.IOException; import java.util.InputMismatchException; import java.io.PrintWri...
np
111_C. Petya and Spiders
CODEFORCES
/** * @author egaeus * @mail sebegaeusprogram@gmail.com * @veredict Accepted * @url <https://codeforces.com/problemset/problem/1238/E> * @category dp * @date 19/10/2019 **/ import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; import static...
np
1238_E. Keyboard Purchase
CODEFORCES
import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class Solution { public static void main(String[] args) { /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */ Scanner t=new Sca...
constant
483_A. Counterexample
CODEFORCES
import java.util.*; import java.io.*; public class Waw{ public static void main(String[] args) throws Exception { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); long[] a = new long[n]; for(int i=0;i<n;i++) a[i] = sc.nextLong(); long[] p = new long[n]; ...
linear
924_C. Riverside Curio
CODEFORCES
import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); long n = scanner.nextLong(); long s = scanner.nextLong(); long l = 0, r = n + 1; while(r - l > 1) { long mid = (l + r) / 2; long k = mid, sum = 0...
logn
817_C. Really Big Numbers
CODEFORCES
import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public class Problem { public static void main(String[] arg){ FastScanner scan = new FastScanner(System.in); PrintWriter out = new PrintWriter(System.out); ...
np
16_E. Fish
CODEFORCES
import java.util.*; public class Solution { public static void main(String[] args) { new Solution().calc(); } void calc() { Scanner cin = new Scanner(System.in); String s = cin.next(); int ret = 0; for (int i = 0; i < s.length(); i++) { f...
cubic
23_A. You're Given a String...
CODEFORCES
import java.util.Arrays; import java.util.Scanner; public class AAA { public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = in.nextInt(); int max = a[0]; ...
nlogn
135_A. Replacement
CODEFORCES
import static java.lang.Math.*; import static java.util.Arrays.*; import java.util.*; import java.io.*; public class Main { public static void main(String[] args) throws Exception { Class<?> here = new Object(){}.getClass().getEnclosingClass(); try { String packageName = here.getPackage().getName(); package...
nlogn
274_A. k-Multiple Free Set
CODEFORCES
import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.util.StringTokenizer; public class cf337c { static long mod,n,m,k; public static void ...
logn
338_A. Quiz
CODEFORCES
import java.io.*; import java.util.*; import java.math.*; import java.lang.*; import java.text.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int T =sc.nextInt(); int t =T/2; System.out.println(t*3); } }
constant
84_A. Toy Army
CODEFORCES
import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.math.BigInteger; import java.util.ArrayList; import java.util.Arrays; import java.util.Bit...
logn
713_B. Searching Rectangles
CODEFORCES
import java.util.*; import java.io.*; public class cf5722{ public static void main(String[] args) throws IOException{ BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st=new StringTokenizer(br.readLine()); long n=Long.parseLong(st.nextToken()); long k=Long.parseLong(st.ne...
logn
1195_B. Sport Mafia
CODEFORCES
import java.io.*; import java.util.*; public class A { public static void main(String[] args) { InputStream inputStream = System.in; OutputStream outputStream = System.out; InputReader in = new InputReader(inputStream); PrintWriter out = new PrintWriter(outputStream); Task solver = new Task(); solver.solv...
linear
1004_A. Sonya and Hotels
CODEFORCES
import java.io.*; import java.util.*; import java.util.regex.*; public class Main { static Scanner scan = new Scanner (System.in); static PrintStream out = System.out; static int n; static void solve () { System.out.println (0 + " " + 0 + " " + n); } public static void main (String[] args) { n = scan.ne...
constant
199_A. Hexadecimal's theorem
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.*; import java.util.*; public class C implements Runnable{ public static void main (String[] args) {new Thread(null, new C(), "_cf", 1 << 28).start();} long MOD = (long)1e9+7; public void run() { FastScanner fs = new FastScanner(); PrintWriter out = new PrintWriter(System.out); System.err.pr...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.util.HashSet; import java.util.Scanner; import java.util.Set; public class A { public static void main(String[] args) { Scanner s = new Scanner(System.in); int N = s.nextInt(); int K = s.nextInt(); int[] primes = getPrimesFast(N); Set<Integer> ints = new HashSet...
linear
17_A. Noldbach problem
CODEFORCES
/* package whatever; // don't place package name! */ import java.util.*; import java.lang.*; import java.io.*; import java.math.*; /* Name of the class has to be "Main" only if the class is public. */ public class Main { public static void main (String[] args) throws java.lang.Exception { BufferedReader br=new Bu...
nlogn
903_D. Almost Difference
CODEFORCES
import java.util.ArrayList; import java.io.InputStream; import java.io.InputStreamReader; import java.util.HashMap; import java.io.BufferedReader; import java.util.List; import java.util.Map; import java.math.BigInteger; import java.io.OutputStream; import java.io.PrintWriter; import java.io.IOException; import java.ut...
linear
468_B. Two Sets
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.util.ArrayList; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top * * @author...
quadratic
1015_B. Obtaining the String
CODEFORCES
import java.io.*; import java.util.*; public class test { public static void main(String[] args) { new test().run(); } PrintWriter out = null; void run() { Scanner in = new Scanner(System.in); out = new PrintWriter(System.out); int n = in.nextInt(); int a = in.nextInt(); int b = in.nextInt(); ...
nlogn
169_A. Chores
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.io.BufferedWriter; import java.util.Collection; import java.io.FileWriter; import java.io.IOException; import java.io.FileInputStream; import java.io.InputStreamReader; i...
cubic
35_C. Fire Again
CODEFORCES
import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public class Main { long k; private void solve() throws IOException { long n = nl(); k = nl(); ...
logn
287_B. Pipeline
CODEFORCES
import java.text.DecimalFormat; import java.util.Scanner; public class A { public static void main(String[] args){ try{ Scanner scanner = new Scanner(System.in); String in = scanner.next(); int max = 0; for(int j=0;j<in.length()-1;j++){ for(in...
cubic
23_A. You're Given a String...
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.*; import java.util.*; public class Main { public static void main(String[] args) throws IOException{ Scanner cin = new Scanner(System.in); int t, n, m; t = cin.nextInt(); while(t > 0) { t--; int sum = 0; n = cin.nextInt(); m = cin.nextInt(); while(n > 0 && m > 0) { ...
constant
267_A. Subtractions
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.*; public class KingEscape { public static void main(String[] args) { Reader read = new Reader(); int n = read.nextInt(); int a1 = read.nextInt(); ...
constant
1033_A. King Escape
CODEFORCES
import java.util.Scanner; public class D { static long[][][] dp; static int[][] hor, ver; static int n, m; static int[][] dir = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}}; public static boolean isValid (int row, int col) { return row >= 0 && col >= 0 && row < n && col < m; } public static...
cubic
1517_D. Explorer Space
CODEFORCES
import java.util.Scanner; import java.io.OutputStream; import java.io.IOException; import java.io.PrintWriter; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top */ public class Main { public static void main(String[] args) { InputStream inputStream = System.in; Outpu...
constant
472_A. Design Tutorial: Learn from Math
CODEFORCES
import java.io.*; import java.math.BigInteger; import java.util.*; public class E implements Runnable { public static void main (String[] args) {new Thread(null, new E(), "_cf", 1 << 28).start();} int n, m; char[] str; int[][] occs, cost; int[] dp; public void run() { FastScanner fs = new FastScanner(); P...
np
1238_E. Keyboard Purchase
CODEFORCES
import java.io.*; import java.util.*; public class ProblemD { InputReader in; PrintWriter out; void solve() { long l = in.nextLong(); long r = in.nextLong(); long ans = 0; boolean add = false; for (int k = 62; k >= 0; k--) { long cb = (1L << k); i...
logn
276_D. Little Girl and Maximum XOR
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; public class Problem220A { static int[] numbers; static int[] numbersCopy; public static void main(String[] args) throws IOException { BufferedRe...
nlogn
220_A. Little Elephant and Problem
CODEFORCES
import java.util.*; import java.io.*; public class a { public static void main(String[] args) throws IOException { input.init(System.in); int n = input.nextInt(), k = input.nextInt(); TreeSet<Integer> ts = new TreeSet<Integer>(); int[] data = new int[n]; for(int i = 0; i<n; i++) { data[i...
nlogn
274_A. k-Multiple Free Set
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.*; public class A { BufferedReader reader; StringTokenizer tokenizer; PrintWriter out; public void solve() throws IOException { long A = nextLong(); long B ...
constant
343_A. Rational Resistance
CODEFORCES
import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.math.BigInteger; import java.util.ArrayList; import java.util.Arrays; import java.util.Bit...
cubic
35_C. Fire Again
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.PrintWriter; import java.util.StringTokenizer; public class Main { public static void main(String[] args) throws Exception { InputStream inputStream =...
logn
713_B. Searching Rectangles
CODEFORCES
import java.io.PrintWriter; import java.util.Scanner; import java.util.TreeSet; public class E { static Scanner in; static int next() throws Exception {return in.nextInt();}; // static StreamTokenizer in; static int next() throws Exception {in.nextToken(); return (int) in.nval;} // static BufferedReader in; st...
constant
122_A. Lucky Division
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.Arrays; import java.util.StringTokenizer; public class Solution { static class Team implements Comparable<Team> { int pr; int time; int id; public Team(int P, int T, int I)...
nlogn
166_A. Rank List
CODEFORCES
import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import java.io.*; import java.math.*; import java.security.*; import java.text.*; import java.util.*; import java.util.regex.*; /* br = new BufferedReader(new FileReader("input.txt")); pw = new PrintWriter(new BufferedWriter(new FileWriter("outp...
cubic
35_C. Fire Again
CODEFORCES
import java.io.*; public class B { public static void main (String[] args) throws IOException { BufferedReader b = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(b.readLine()); while (n-- > 0) { String s = b.readLine(); if (s.matches("...
linear
1_B. Spreadsheets
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.Arrays; import java.util.HashMap; import java.util.Iterator; import java.util.LinkedList; import java.util.Map; import java.util.Queue; import java.util.Scanner; import java.util.ArrayList; public class Main { static int d[][]; static int N; static boolean used[]; static class point ...
logn
287_B. Pipeline
CODEFORCES
import java.util.*; import java.lang.*; import java.math.*; public class Main{ Scanner sc=new Scanner(System.in); void run(){ int n = sc.nextInt(); int x[] = new int [n]; for (int i=0;i<n;i++) x[i] = sc.nextInt(); java.util.Arrays.so...
nlogn
22_A. Second Order Statistics
CODEFORCES
import java.util.*; import java.io.*; public class E74 { public static void main(String[] args) { MyScanner sc = new MyScanner(); PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out)); int n = sc.nextInt(); int m = sc.nextInt(); String s = sc.next(); long t...
np
1238_E. Keyboard Purchase
CODEFORCES
// Don't place your source in a package import javax.swing.*; import java.lang.reflect.Array; import java.text.DecimalFormat; import java.util.*; import java.lang.*; import java.io.*; import java.math.*; import java.util.stream.Stream; // Please name your class Main public class Main { static FastScanner fs=new F...
np
1185_G1. Playlist for Polycarp (easy version)
CODEFORCES
import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws IOException { PrintWriter pw = new PrintWriter(new FileWriter("output.txt")); Scanner in=new Scanner(new File("input.txt")); int n,m,k; n=in.nextInt(); m=in.nextInt(); ...
cubic
35_C. Fire Again
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.List; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; impo...
cubic
840_C. On the Bench
CODEFORCES
import java.util.*; import java.io.*; public class LCMChallenge { public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); if(n < 3) { System.out.println(n); } else if(n % 2 == 1) { System.out.println((long)n * (n - 1) * (n - 2)); } else { ...
constant
235_A. LCM Challenge
CODEFORCES
import java.util.Scanner; public class A { public static void main(String[] args) { Scanner in = new Scanner(System.in); long l = in.nextLong(); long r = in.nextLong(); if(r-l < 2 ){ System.out.println("-1"); } else if...
constant
483_A. Counterexample
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. */ //package NumberTheory; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /** * * @autho...
constant
235_A. LCM Challenge
CODEFORCES
import java.util.Scanner; public class ChainReaction { public static void main(String [] args) { Scanner kb = new Scanner(System.in); int num = kb.nextInt(); int[] beacons = new int[1000002]; for (int i=0; i<num; i++) { beacons[kb.nextInt()] = kb.nextInt(); } int [] dp = new int[1000002]; int...
linear
608_C. Chain Reaction
CODEFORCES
import java.util.Arrays; import java.util.Scanner; public class Train_A { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int a = sc.nextInt(); int b = sc.nextInt(); int [] h = new int[n]; for (int i = 0; i < n; i...
nlogn
169_A. Chores
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.io.*; import java.util.StringTokenizer; /** * Created by IntelliJ IDEA. * User: piyushd * Date: Dec 5, 2010 * Time: 4:09:41 PM * To change this template use File | Settings | File Templates. */ public class HamstersTigers { private BufferedReader in; private PrintWriter out; private Strin...
linear
46_C. Hamsters and Tigers
CODEFORCES
import java.util.*; import java.io.*; public class ASimpleTask { /************************ SOLUTION STARTS HERE ***********************/ static long memo[][]; static int graph[]; static long hamiltonianPath(int mask , int u) { if(memo[mask][u] != -1) return memo[mask][u]; else if(u == Intege...
np
11_D. A Simple Task
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.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class PipelineRedo { public static void main(String[] args){ FastScanner sc = new FastScanner(); long n = sc.next...
logn
287_B. Pipeline
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; public class ProblemB3 { Map<Integer, List<int[]>> dest; private ProblemB3() throws IOException { BufferedReader rd = new BufferedReader(new InputStreamReader(System.in)); String h ...
linear
468_B. Two Sets
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.StreamTokenizer; import java.util.Arrays; public class Main { static StreamTokenizer st=new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in))); public static void main(String[] args) { in...
nlogn
1159_C. The Party and Sweets
CODEFORCES
import java.io.*; import java.util.*; public class a23 { public static void main(String args[])throws IOException { InputStreamReader read=new InputStreamReader(System.in); BufferedReader in=new BufferedReader(read); String s,subs; // System.out.println("Enter"); s=in.read...
cubic
23_A. You're Given a String...
CODEFORCES
import java.io.*; import java.util.*; public class cf343a { static FastIO in = new FastIO(), out = in; public static void main(String[] args) { out.println(go(in.nextLong(),in.nextLong())); out.close(); } static long go(long a, long b) { return b==0?0:(go(b,a%b) + a/b); } static class FastIO ...
constant
343_A. Rational Resistance
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.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.io.PrintStream; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHel...
logn
817_C. Really Big Numbers
CODEFORCES
/* Keep solving problems. */ import java.util.*; import java.io.*; public class CFA { BufferedReader br; PrintWriter out; StringTokenizer st; boolean eof; private static long MOD = 1000L * 1000L * 1000L + 7; private static final int[] dx = {0, -1, 0, 1}; private static final int[] dy = {1,...
nlogn
1080_E. Sonya and Matrix Beauty
CODEFORCES
import java.util.Scanner; public class A { public static void main(String[] args) { Scanner x=new Scanner(System.in); int n=x.nextInt(); if(n%2==0){ System.out.println((n-4)+" "+"4"); } ...
constant
472_A. Design Tutorial: Learn from Math
CODEFORCES
import java.util.*; public class Main { public static void main(String [] args){ Scanner in=new Scanner(System.in); int n=in.nextInt(); double value[][]=new double[n][n]; for(int i=0;i<n;i++) for(int j=0;j<n;j++)value[i][j]=in.nextDouble(); double ans[]=new double[1<<n]; int mask=(1<<n); ans[(1<<n)-1]=1.0; ...
np
16_E. Fish
CODEFORCES
import java.io.*; import java.math.BigInteger; import java.util.*; /** * Created by aditya on 5/3/17. */ public class Main3 { static long x, k; static long MOD = (long)1e9 + 7; public static void main(String args[]) throws Exception{ FastInput fi = new FastInput(new InputStreamReader(System.in)...
logn
992_C. Nastya and a Wardrobe
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 Jeel Vaishnav */ public cl...
np
1185_G1. Playlist for Polycarp (easy version)
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.SplittableRandom; import java.math.BigInteger; import java.util.InputMismatchException; import java.io.IOException; import java.io.InputStream; /** * Built using C...
nlogn
903_D. Almost Difference
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.io.FilterInputStream; import java.io.BufferedInputStream; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top * * @author khokharnikunj8 */ public ...
np
1185_G1. Playlist for Polycarp (easy version)
CODEFORCES
import java.io.*; import java.util.*; public class Noldbach { public Scanner in = new Scanner(System.in); public PrintStream out = System.out; public boolean[] yes; public int n, k; public void main() { n = in.nextInt(); k = in.nextInt(); genPrime(); int i; yes = new boolean[n+1]; int x; ...
linear
17_A. Noldbach problem
CODEFORCES
import java.util.Scanner; public class C { public static void main(String[] args) { Scanner scan = new Scanner(System.in); long n = scan.nextLong(); long s = scan.nextLong(); long low = 0; long high = n + 1; while (high-low>1) { long sum = 0; long mid = (high + low) / 2; long value = findSum(mi...
logn
817_C. Really Big Numbers
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.S...
quadratic
1141_F2. Same Sum Blocks (Hard)
CODEFORCES
import java.util.Locale; import java.util.Scanner; public class PipelineSolver { private long n; private long k; public static void main(String[] args) { PipelineSolver solver = new PipelineSolver(); solver.readData(); int solution = solver.solve(); solver.print(solution...
logn
287_B. Pipeline
CODEFORCES
import java.io.*; import java.util.*; import static java.lang.Math.*; public class E_fast { static int g[][]; static int n, m; static char[] s; static int dp[], inf = (int) 2e9; static int cost[][]; public static void main(String[] args) throws Exception { InputReader in = new InputRea...
np
1238_E. Keyboard Purchase
CODEFORCES
import java.util.*; import java.io.*; public class Solution { public static void main(String [] args) throws IOException { PrintWriter pw=new PrintWriter(System.out);//use pw.println() not pw.write(); BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); StringTokenize...
linear
1011_A. Stages
CODEFORCES
import java.io.*; import java.util.*; import java.math.*; public class MAIN { public static void main(String args[]) { Scanner sn=new Scanner(System.in); int n,n1,n2,n3; int arr[]={0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025,121393,196418,317811,514229,83...
constant
199_A. Hexadecimal's theorem
CODEFORCES
/* package whatever; // don't place package name! */ import java.util.*; import java.lang.*; import java.io.*; /* Name of the class has to be "Main" only if the class is public. */ public class Main { public static void main (String[] args) throws java.lang.Exception { Scanner scan=new Scanner(System.in); long ...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.io.*; import java.util.*; public class utkarsh{ BufferedReader br; PrintWriter out; int game(int s, int mid, int e, int[] a){ int i, j, n, m; n = mid - s + 1; m = e - mid; int b[] = new int[n]; int c[] = new int[m]; for(i = 0; i < n; i++) b[i] = a[s + i]; for(j = 0; j < m; j++) c[j] = a[m...
quadratic
911_D. Inversion Counting
CODEFORCES
import java.util.*; import java.io.*; public class Main { static long mod = 1000000007; static int INF = 1000000000; public static void main(String[] args){ FastScanner scanner = new FastScanner(); int n = scanner.nextInt(); int m = scanner.nextInt(); String s = scanner.next(); int[][] cnt = new int[20][...
np
1238_E. Keyboard Purchase
CODEFORCES
import sun.reflect.generics.tree.Tree; import java.io.*; import java.math.BigInteger; import java.net.Inet4Address; import java.util.*; public class l { //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////...
nlogn
527_C. Glass Carving
CODEFORCES
import java.util.Scanner; public class B2 { public static void main (String args[]){ Scanner in = new Scanner(System.in); long n = in.nextLong(); long k = in.nextLong(); long upn = k; long tmp=upn; if(n==1){ System.out.println(0); return; } if(n<=k){ System.out.println(1); return; } /...
logn
287_B. Pipeline
CODEFORCES
import java.io.*; import java.util.*; import java.math.*; public class Main { public static void main(String ...args) throws Throwable { Scanner in = new Scanner(System.in); String init = in.nextLine(); HashSet<String> h = new HashSet<String>(); for (int len = init.length() - 1; len...
cubic
23_A. You're Given a String...
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.InputMismatchException; import java.util.HashMap; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.io.InputStream; /** * Bui...
quadratic
1141_F2. Same Sum Blocks (Hard)
CODEFORCES
import java.io.*; import java.util.*; public class a{ static BufferedReader br; static PrintWriter pw; static int N, M, K; static ArrayList<Integer> graph[][]; public static void main(String args[]) throws IOException{ br = new BufferedReader(new InputStreamReader(System.in)); pw = ...
cubic
1517_D. Explorer Space
CODEFORCES
import java.util.Scanner; import java.io.OutputStream; import java.io.IOException; import java.util.Arrays; import java.io.PrintWriter; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top * @author hheng */ public class Main { public static void main(String[] args) { In...
nlogn
166_A. Rank List
CODEFORCES
import java.io.*; import java.util.*; import static java.lang.Math.*; public class Solution implements Runnable { BufferedReader in; PrintWriter out; StringTokenizer st; int[] x; int[] y; int n; int X, Y; int[] d; int[][] dist; int sqr(int a) { return a * a; } ...
np
8_C. Looking for Order
CODEFORCES
import java.io.*; import java.math.BigDecimal; import java.math.BigInteger; import java.util.*; import java.awt.Point; public class CodeForces { static boolean ONLINE_JUDGE = System.getProperty("ONLINE_JUDGE") != null; private final long MOD = 1000000009; long power(long a, long b) { long res ...
logn
338_A. Quiz
CODEFORCES
import java.util.Scanner; public class B { public static final boolean DEBUG = false; Scanner sc; public void debug(Object o) { if (DEBUG) { int ln = Thread.currentThread().getStackTrace()[2].getLineNumber(); String fn = Thread.currentThread().getStackTrace()[2].getFileName(); System.out.println("(" +...
logn
256_B. Mr. Bender and Square
CODEFORCES
import java.io.*; import java.util.*; public class Main { public static void main(String args[]) throws IOException { BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in)); String line = stdin.readLine(); String[] prms = line.split(" "); long a = Long.parseLong(prms[0]); ...
constant
343_A. Rational Resistance
CODEFORCES
import java.io.BufferedReader; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.Scanner; public class Solution { private static final long MODULUS = 1000000007; private static final boolean DEBUG = false; ...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.io.OutputStreamWriter; import java.io.BufferedWriter; import java.util.Locale; import java.io.OutputStream; import java.io.PrintWriter; import java.util.RandomAccess; import java.util.AbstractList; import java.io.Writer; import java.util.List; import java.io.IOException; import java.math.BigDecimal; import ...
nlogn
220_A. Little Elephant and Problem
CODEFORCES
import java.util.*; import java.io.*; import java.text.DecimalFormat; public class Main{ final long mod = (int)1e9+7, IINF = (long)1e19; final int MAX = (int)1e6+1, MX = (int)1e7+1, INF = (int)1e9, root = 3; DecimalFormat df = new DecimalFormat("0.0000000000000"); double eps = 1e-9; FastReader in;...
linear
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...
constant
267_A. Subtractions
CODEFORCES
import java.io.*; import java.util.*; public class Main { static class FastScanner { BufferedReader br; StringTokenizer st; public FastScanner() { try { br = new BufferedReader(new InputStreamReader(System.in)); st = new StringTokenizer(br.readLine...
linear
996_B. World Cup
CODEFORCES
import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Scanner; public class D911 { public static long total = 0; public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); ArrayList<Integer> temp = new ArrayList<>(); int[...
quadratic
911_D. Inversion Counting
CODEFORCES