src
stringlengths
95
64.6k
complexity
stringclasses
7 values
problem
stringclasses
256 values
from
stringclasses
1 value
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayDeque; import java.util.Arrays; import java.util.Deque; import static java.lang.Integer.MAX_VALUE; import static java.lang.Integer.parseInt; /** * 8C * * @author artyom */ public class LookingForOrde...
np
8_C. Looking for Order
CODEFORCES
import java.io.*; import java.util.*; public class Codechef{ public static void main(String []args){ Scanner in = new Scanner(System.in); long n=in.nextLong(); long m=in.nextLong(); long k=in.nextLong(); long l=in.nextLong(); long j=((k+l)/m); if((k+l)%m!=0)j++; if((k+l>n) || j*m>n) { ...
constant
1068_A. Birthday
CODEFORCES
import java.io.*; import java.util.*; import static java.lang.Math.*; public class codeforces { public static long cnt = 0; public static void f(int g1, int g2, int g3, int last) { if (g1 == 0 && g2 == 0 && g3 == 0) cnt++; if (g1 > 0 && last != 1) f(g1 - 1, g2, g3, 1); if (g2 > 0 && ...
np
1185_G1. Playlist for Polycarp (easy version)
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.Arrays; import java.util.StringTokenizer; public class Main { /** * @param args */ static int N, M; static long[] C; static int[][] g; static ...
np
11_D. A Simple Task
CODEFORCES
import java.io.*; import java.math.BigInteger; import java.util.*; public class CodeForces { public static void main(String[] args) throws IOException,NumberFormatException{ try { FastScanner sc=new FastScanner(); int t=sc.nextInt(); while(t-->0) { int a=sc.nextInt(),b=sc.nextInt(); int count=0; ...
constant
267_A. Subtractions
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.HashSet; import java.util.LinkedList; import java.util.Map; import java.util.PriorityQueue; import ja...
nlogn
1159_C. The Party and Sweets
CODEFORCES
import java.io.*; import java.util.*; public class A { void run() throws IOException { int n = ni(); int m = ni(); int k = ni(); int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = ni() - 1; Arrays.sort(a); int ans = 0; if (m > k) { ...
nlogn
257_A. Sockets
CODEFORCES
import java.io.*; import java.util.*; public class B implements Runnable { FastReader scn; PrintWriter out; String INPUT = ""; void solve() { int n = scn.nextInt(); int[] arr = scn.nextIntArray(n); int[][] a = new int[n * (n + 1) / 2][]; int[] need = new int[a.length]; int pos = 0; for (int l = 0; l ...
quadratic
1141_F2. Same Sum Blocks (Hard)
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.HashMap; public class CodehorsesT_shirts { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(reader.read...
linear
1000_A. Codehorses T-shirts
CODEFORCES
import java.io.*; import java.awt.geom.Point2D; import java.text.*; import java.math.*; import java.util.*; public class Main implements Runnable { final String filename = ""; public void solve() throws Exception { int n = iread(); int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = iread(); Array...
nlogn
135_A. Replacement
CODEFORCES
import java.io.*; import java.util.*; public class utkarsh{ BufferedReader br; void solve(){ br = new BufferedReader(new InputStreamReader(System.in)); int i, j, n, mod = (int)(1e9 + 7); n = ni(); char c[] = new char[n]; for(i = 0; i < n; i++) c[i] = ns().charAt(0); long dp[][] = new long[n][n]; dp[0]...
quadratic
909_C. Python Indentation
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 Longest { public static void main(String[] args) { Scanner sc=new Scanner(System.in); String str=sc.nextLine(); int max=0; for(int i=0;i<str.length();i++) { for(int x=0;x+i<=str.length();x++) { if(contains(str,str.substring(x,x+i),x)) { /...
cubic
23_A. You're Given a String...
CODEFORCES
import java.util.*; import java.io.*; import java.math.*; /** * * @author Dstoical */ public class G { private static int M = 1000000007, MM = 998244353; private static int N = 15,n,T; private static int[] time,gi; private static int[][][] dp; public static void process() throws IOException { n = sc.next...
np
1185_G1. Playlist for Polycarp (easy version)
CODEFORCES
import java.io.PrintWriter; import java.util.*; import java.util.Arrays ; import java .lang.String.* ; import java .lang.StringBuilder ; public class Test{ static int pos = 0 ; static int arr[] ; static LinkedList l1 = new LinkedList() ; static void find(int p ,char[]x,int put[],String s){ int c...
constant
964_A. Splits
CODEFORCES
import java.util.*; import java.lang.*; import java.math.*; import java.io.*; import static java.lang.Math.*; import static java.util.Arrays.*; public class A{ Scanner sc=new Scanner(System.in); void run(){ String s=sc.nextLine(); int n=s.length(); int ans=0; for(int len=1; len...
cubic
23_A. You're Given a String...
CODEFORCES
import java.util.*; public class Main { static int mod = 1000000007; static int size = 200000; static long[] fac = new long[size]; static long[] finv = new long[size]; static long[] inv = new long[size]; static int INF = Integer.MAX_VALUE; public static void main(String[] args){ Scanner scanner = new Scann...
constant
991_D. Bishwock
CODEFORCES
import java.io.BufferedReader; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.math.BigInteger; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections...
constant
483_A. Counterexample
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.math.BigInteger; import java.util.*; public class B { private void solve() throws IOException { int n = nextInt(); int k = nextInt(); int[] a = new ...
linear
224_B. Array
CODEFORCES
import java.util.*; import java.io.*; public class Main { public static void main(String args[]) throws IOException { Scanner sc = new Scanner(System.in/*new File("input.txt")*/); int n = sc.nextInt(), t = sc.nextInt(), x, a, kol = 2; ArrayList<Double> al = new ArrayList<Double>(); for(int i=0;i<n;i++) { ...
nlogn
15_A. Cottage Village
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at ...
np
1209_E1. Rotate Columns (easy version)
CODEFORCES
import java.io.IOException; import java.util.Scanner; public class A199 { static int n[][] = new int[][] { { -1, 0 }, { 1, 0 }, { 0, -1 }, { 0, 1 } }; public static void main(String[] args) throws IOException { new A199().solve(); } public void solve() throws IOException { Scanner scan = new Scanner(System....
constant
199_A. Hexadecimal's theorem
CODEFORCES
import java.io.*; import java.util.*; import java.math.BigInteger; public class Main { // main public static void main(String [] args) throws IOException { // makes the reader and writer BufferedReader f = new BufferedReader(new InputStreamReader(System.in)); PrintWriter out = new PrintWriter(new Buffe...
constant
483_A. Counterexample
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...
np
1185_G1. Playlist for Polycarp (easy version)
CODEFORCES
import java.util.Scanner; public class C { private static final int MOD = (int) 1e9 + 7; public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); int[][] DP = new int[n][n + 1]; DP[0][0] = 1; for (int i = 0; i < n - 1; i++) ...
quadratic
909_C. Python Indentation
CODEFORCES
import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; import java.util.StringTokenizer; public class Div...
nlogn
1084_F. Max Mex
CODEFORCES
import java.util.*; import java.io.*; import java.math.*; public class A{ void solve(){ int n=ni(); int P[]=new int[n+1]; for(int i=1;i<=n;i++) P[i]=ni(); a=new int[n+1]; BIT=new long[n+1]; long cnt=0; long p=0; for(int i=n;i>=1;i--){ p+...
quadratic
911_D. Inversion Counting
CODEFORCES
import java.io.PrintWriter; import java.util.Scanner; public class Main { public static void main(String[] args) { var sc = new Scanner(System.in); var pw = new PrintWriter(System.out); int T = Integer.parseInt(sc.next()); for(int t = 0; t < T; t++){ ...
linear
1515_B. Phoenix and Puzzle
CODEFORCES
import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.math.BigInteger; import java.util.HashSet; import java.util.InputMismatchException; import java.util.Set; /** * @author Egor Kulikov (egor@egork.net) * Created on 14.03.2010 */ public class TaskA implements Runna...
cubic
23_A. You're Given a String...
CODEFORCES
import java.util.Scanner; public class B { public static String toB(String str){ String row,col; int i=0; while(i<str.length() && str.charAt(i)<='Z'&&str.charAt(i)>='A')i++; col = str.substring(0,i); row = str.substring(i,str.length()); StringBuffer sb = new StringB...
linear
1_B. Spreadsheets
CODEFORCES
import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner s=new Scanner(System.in); int n=s.nextInt(); int[] arr=new int[n]; for(int i=0;i<n;i++) { arr[i]=s.nextInt(); } Arrays.sort(arr); int[] visited=new int[n]; ...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.io.*; import java.util.*; import java.lang.*; import java.math.*; public class USACO { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(reader.readLine()," ")...
quadratic
908_C. New Year and Curling
CODEFORCES
import java.util.*; import java.io.*; public class A { public static void main(String[] args) { Scanner s = new Scanner(new InputStreamReader(System.in)); int n = s.nextInt(); if (n == 1) { System.out.println("NO"); System.exit(0); } int[] nums = new...
nlogn
22_A. Second Order Statistics
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 * @author AndrewShmig */ public class Main { public static void main(String[] args) { InputStream inputStre...
constant
313_A. Ilya and Bank Account
CODEFORCES
import java.io.*; import java.util.*; public class A implements Runnable { private MyScanner in; private PrintWriter out; private void solve() { int n = in.nextInt(); int[] a = new int[n]; int all = 0; for (int i = 0; i < n; ++i) { a[i] = in.nextInt(); ...
nlogn
160_A. Twins
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 OutputStreamWriter(System.out)); ...
constant
1028_B. Unnatural Conditions
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.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...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.util.Scanner; public class main1 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int a = n / 2; int b = n - a; if (n % 2 == 0) { if (a % 2 == 1) { a++; b--; } System.out.println(a + " " + b); } else { if (a...
constant
472_A. Design Tutorial: Learn from Math
CODEFORCES
import java.io.*; import java.util.*; public class C { public static void main(String[] args) throws IOException { FastScanner in = new FastScanner(System.in); PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out))); int n = in.nextInt(); double r = in.nextInt(); double[...
quadratic
908_C. New Year and Curling
CODEFORCES
import java.util.*; public class Main{ private static final int MAX_SIZE = 100005; public static void main(String args[]){ Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); int a = sc.nextInt(); int b = sc.nextInt(); if(((m + 1) / ...
linear
967_A. Mind the Gap
CODEFORCES
import java.io.*; import java.util.*; public class Main { StreamTokenizer in; PrintWriter out; public static void main(String[] args) throws Exception { new Main().run(); } public void run() throws Exception { in = new StreamTokenizer (new BufferedReader(new InputStreamReader(Sys...
constant
84_A. Toy Army
CODEFORCES
import java.util.*; import java.io.*; public class EdA { static long[] mods = {1000000007, 998244353, 1000000009}; static long mod = mods[0]; public static MyScanner sc; public static PrintWriter out; public static void main(String[] havish) throws Exception{ // TODO Auto-generated method stub sc = new MyS...
cubic
1515_E. Phoenix and Computers
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.util.HashSet; import java.util.Set; import java.util.StringTokenizer; public class B { static BufferedReader in; static StringTokenizer st; ...
linear
224_B. Array
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.io.StreamTokenizer; import java.util.Arrays; import java.util.Locale; public class E16 { static StreamTokenizer in; static PrintWriter out; static int nextInt() throws IOException ...
np
16_E. Fish
CODEFORCES
import java.util.*; import java.io.*; import static java.util.Arrays.*; import static java.lang.Math.*; import java.math.*; public class Main { void run() throws IOException { String s = token(); HashSet <String> h; int n = s.length(); int r = 0; loop: for (int i = 1; i...
cubic
23_A. You're Given a String...
CODEFORCES
import java.io.DataInputStream; import java.io.InputStream; import java.util.Arrays; import java.util.TreeSet; public class Main{ public static void main(String[] args) throws Exception { Parserdoubt3 s = new Parserdoubt3(System.in); int n = s.nextInt(); long k = s.nextInt(); Long a[] = new Long[n]; Tree...
nlogn
274_A. k-Multiple Free Set
CODEFORCES
import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.Scanner; public class Loader { private final static Scanner in = new Scanner(System.in); public static void main(String[] args) { int n = in.nextInt(); ArrayList<Integer> l = new ArrayList<>...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.util.*; import java.io.*; public class Main { static class Scanner { StringTokenizer st; BufferedReader br; public Scanner(InputStream s) { br = new BufferedReader(new InputStreamReader(s)); } public Scanner(FileReader fileReader) { br = n...
linear
1004_A. Sonya and Hotels
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.Arrays; import java.util.HashSet; import java.util.Set; public class ProblemA { public static void main(String[] args) throws IOException { BufferedReader s = new BufferedReade...
nlogn
15_A. Cottage Village
CODEFORCES
import java.io.*; import java.util.*; public class ProblemA { InputReader in; PrintWriter out; long power(long a, long b, long mod) { long ret = 1; long mul = a; while (b > 0) { if (b % 2 == 1) { ret = (ret * mul % mod); } ...
logn
338_A. Quiz
CODEFORCES
import java.io.PrintWriter; import java.util.*; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); PrintWriter out = new PrintWriter(System.out); // 1 = H, 0 = T int n = in.nextInt(); String line = in.next(); int h = 0; for (int i = 0; i < line.lengt...
linear
46_C. Hamsters and Tigers
CODEFORCES
import java.util.Arrays; import java.util.Scanner; public class first { public static void main(String[] args) { // TODO Auto-generated method stub Scanner s=new Scanner(System.in); int n=s.nextInt(); int[] a=new int[n]; for (int i = 0; i < a.length; i++) { a[i]=s.nextInt(); } Arrays.sort(a); int...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class B_574 { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[] input = br.readLine().split(" "); ...
logn
1195_B. Sport Mafia
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 codeKNIGHT */ public class Main { public static void main(String[] args) {...
nlogn
160_A. Twins
CODEFORCES
import java.io.IOException; import java.util.Scanner; public class A { public static void main(String args[]) throws IOException { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); System.out.println((2*n) - (n/2)); } }
constant
84_A. Toy Army
CODEFORCES
import java.io.*; import java.util.*; public class Main { static BufferedReader reader; static StringTokenizer tokenizer; static PrintWriter writer; static int nextInt() throws NumberFormatException, IOException { return Integer.parseInt(nextToken()); } static long nextLong() throws ...
linear
468_B. Two Sets
CODEFORCES
import java.io.*; import java.util.*; public class CF_35C { public static void main(String[] args) throws IOException{ BufferedReader f = new BufferedReader(new FileReader("input.txt")); PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("output.txt"))); StringTokenizer st1...
cubic
35_C. Fire Again
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.math.BigInteger; import java.text.DecimalFormat; import java.util.*; import java.util.concurrent.ThreadLocalRandom; import java.util.stream.Collectors; import java.util.stream.IntStream; import java.util.stream.Stre...
np
1209_E1. Rotate Columns (easy version)
CODEFORCES
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); if ((n%4==0)||(n%7==0)||(n%44==0)||(n%47==0)||(n%74==0)||(n%77==0)||(n%444==0)||(n%447==0)||(n%474==0)||(n%477==0)||(n%744==0)||(n%747==0)||(n%77...
constant
122_A. Lucky Division
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 java.io.IOException; import java.io.InputStream; import java.util.InputMismatchException; import java.util.Stack; public class D527A2 { public static void main(String[] args) { FastScanner in = new FastScanner(System.in); int N = in.nextInt(); Stack<Integer> stack = new Stack<>(); for(int i = 0; i < N;...
linear
1092_D1. Great Vova Wall (Version 1)
CODEFORCES
import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner s = new Scanner(System.in); int n = s.nextInt(), d = s.nextInt(); int[] arr = new int[n]; for(int i = 0; i < n; i++){ arr[i] = s.nextInt(); } Arrays.sort(arr); int count = 0; fo...
linear
1004_A. Sonya and Hotels
CODEFORCES
import java.util.*; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int V = in.nextInt(); int E = in.nextInt(); boolean [][] G = new boolean [V][V]; for (int i = 0; i < E; i++) { int u = in.nextInt()-1; ...
np
11_D. A Simple Task
CODEFORCES
import java.io.*; import java.util.*; public class B { 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...
logn
1019_B. The hat
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; import java.util.HashMap; import java.util.Map; public class Ds { static long lim; public static void main(String[] args) throws NumberFormatException, IOException { BufferedReader in = new Bu...
logn
817_C. Really Big Numbers
CODEFORCES
import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.FileReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.Arrays; import java.util.Locale; import java.util.StringTokenizer; public class Solution implements Runnab...
nlogn
15_A. Cottage Village
CODEFORCES
import java.io.*; import java.util.*; public class TestClass { public static class FastWriter { private static final int BUF_SIZE = 1 << 13; private final byte[] buf = new byte[BUF_SIZE]; private final OutputStream out; private int ptr = 0; private FastWriter() { ...
cubic
1523_C. Compression and Expansion
CODEFORCES
import java.io.*; import java.util.*; public class Hack{ public static void main(String[] args){ Scanner sc = new Scanner(System.in); int n=sc.nextInt(); int[] arr = new int[n]; for(int i=0;i<n;i++) arr[i]=sc.nextInt(); Arrays.sort(arr); Set<Integer> set = new TreeSet<Integer>(); for(int i=0;i<n;i++){ boolean flag=fals...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.io.*; import java.util.*; public class CF16E { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); double[][] aa = new double[n][n]; for (int i = 0; i < n; i++) { StringTok...
np
16_E. Fish
CODEFORCES
import java.io.*; import java.util.*; public class Codeforces455Div2C { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[] sp = br.readLine().split(" "); int n = Integer.parseInt(sp[0]); char[] list = new char[n]; fo...
quadratic
909_C. Python Indentation
CODEFORCES
import java.util.*; import java.awt.image.BandedSampleModel; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.lang.reflect.Array; import java.util.Scanner; public class D{ static void sort(int[] A){ int n = A.length; Random rnd = new Random()...
cubic
1517_D. Explorer Space
CODEFORCES
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); if ((n % 4 == 0) || (n % 7 == 0) || (n % 44 == 0) || (n % 47 == 0) || (n % 74 == 0) || (n % 77 == 0) || (n % 444 == 0) || (n % 44...
constant
122_A. Lucky Division
CODEFORCES
import java.util.Scanner; public class BDigitSequence { public static void main(String[] args) { Scanner scan = new Scanner(System.in); long k = scan.nextLong(); long digits = 1; long counter = 9L; while(k > counter * digits) { k -= counter * digits; ...
logn
1177_B. Digits Sequence (Hard Edition)
CODEFORCES
import java.util.*; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); long n = in.nextLong(); long k = in.nextLong(); long disc = (long)(Math.sqrt(9 - 4 * (-2 * n - 2 * k))); long x = (-3 + disc) / 2; System.out.println(...
logn
1195_B. Sport Mafia
CODEFORCES
// Working program using Reader Class import java.io.DataInputStream; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.util.Scanner; import java.util.StringTokenizer; public class Main1 { static class Reader { final private int BUFFER_SIZE = 1 << ...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.io.InputStreamReader; import java.io.IOException; import java.io.BufferedReader; import java.io.OutputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top * @author ocelopilli */ public class ...
logn
276_D. Little Girl and Maximum XOR
CODEFORCES
import java.io.*; import java.util.*; import org.omg.PortableServer.ForwardRequestHelper; public class A{ private BufferedReader in; private StringTokenizer st; void solve() throws IOException{ int n = nextInt(); int i = 0; ...
linear
25_A. IQ test
CODEFORCES
import java.io.*; import java.util.*; public class CF1185G2 { static final int MD = 1000000007; static int[][] solve1(int[] aa, int t, int n) { int[][] da = new int[t + 1][n + 1]; da[0][0] = 1; for (int i = 0; i < n; i++) { int a = aa[i]; for (int s = t - 1; s >= 0; s--) for (int m = 0; m < n; m++) {...
cubic
1185_G2. Playlist for Polycarp (hard version)
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; public class B { public static void main(String[] args) throws IOException { // Scanner scan = new Scanner(System.in); BufferedReader br= new BufferedReader(new InputStreamReader(System.i...
linear
1515_B. Phoenix and Puzzle
CODEFORCES
import java.io.*; import java.util.*; public class Main { // static Scanner in; static PrintWriter out; static BufferedReader in; public static void main(String[] args) throws Exception { // in = new Scanner(System.in); out = new PrintWriter(System.out); in = new BufferedReader(new InputStreamReader(System.in...
linear
1_B. Spreadsheets
CODEFORCES
/* Codeforces Template */ import java.io.*; import java.util.*; import static java.lang.Math.*; import static java.util.Arrays.fill; import static java.util.Arrays.binarySearch; import static java.util.Arrays.sort; public class Main { static long initTime; static final Random rnd = new Random(7777L); static boo...
nlogn
274_A. k-Multiple Free Set
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 ankur */ public class Main...
quadratic
909_C. Python Indentation
CODEFORCES
import java.io.File; import java.io.PrintWriter; import java.math.BigInteger; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.Dictionary; import java.util.HashMap; import java.util.Iterator; import java.util.LinkedList; import java.util.Ma...
cubic
35_C. Fire Again
CODEFORCES
/** * Created with IntelliJ IDEA. * User: yuantian * Date: 3/24/13 * Time: 2:18 AM * Copyright (c) 2013 All Right Reserved, http://github.com/tyuan73 */ import java.util.*; public class Pipeline { public static void main(String[] args) { Scanner in = new Scanner(System.in); long n = in.next...
logn
287_B. Pipeline
CODEFORCES
// by agus.mw import java.util.*; import java.io.*; public class Main{ public static void main(String[] args) throws Exception { new Main().doWork(); } void doWork() throws Exception{ BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter writer = new BufferedWri...
np
16_E. Fish
CODEFORCES
import java.util.*; import java.io.*; public class E { public static void main(String[] args) { FastScanner scanner = new FastScanner(); PrintWriter out = new PrintWriter(System.out, false); int t = scanner.nextInt(); while(t-->0) { int n = scanner.nextInt(); ...
np
1209_E2. Rotate Columns (hard version)
CODEFORCES
import java.io.*; import java.util.*; import static java.lang.Math.*; import static java.util.Arrays.fill; import static java.util.Arrays.binarySearch; import static java.util.Arrays.sort; public class Main { public static void main(String[] args) throws IOException { try { if (new File("input.txt").exists()) { ...
nlogn
15_A. Cottage Village
CODEFORCES
import java.io.*; import java.util.*; public class Main{ public static void main(String[] args) throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); List<Integer> fibs = new ArrayList<Integer>(); int fib0 = 0; int fib1 = 1; int fibN = ...
constant
199_A. Hexadecimal's theorem
CODEFORCES
import java.io.*; 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(); int x,y; boolean graph[][]=new boolean[n][n]; for(int i=0;i<m;i++){ x=sc.nextInt()-1...
np
11_D. A Simple Task
CODEFORCES
import java.io.IOException; /** * Created by ww on 13.02.2016. */ public class rgb { public static void main(String[] args) throws IOException { System.out.print(25); return ; } }
constant
630_A. Again Twenty Five!
CODEFORCES
import java.util.*; import java.io.*; import java.math.BigInteger; public class Problem { static int mod = (int) (1e9+7); static InputReader in; static PrintWriter out; static int[] rt; static int[] size; static void initialize(int n){ rt = new int[n + 1]; size = new int[n + 1...
nlogn
915_F. Imbalance Value of a Tree
CODEFORCES
import java.io.*; import java.math.*; import java.util.*; public class Main { static final long MOD = 998244353; //static final long MOD = 1000000007; static boolean[] visited; public static void main(String[] args) throws IOException { FastScanner sc = new FastScanner(); int N = sc.nextInt();...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.util.ArrayList; import java.util.Scanner; public class PaintTheNumber { public static void main(String[] args) { Scanner sc=new Scanner(System.in); int n=sc.nextInt(); ArrayList<Integer> l=new ArrayList<Integer>(); for(int i=0; i<n; i++) { l.add(sc.nextInt()); } boolean c=fals...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.util.*; import java.io.*; public class C599 { static ArrayList<Integer> [] adj; static long [] a; static int [] type; static Map<Long, Integer> map; static int [] vis; static HashSet<Integer> cy; static boolean [] good; static int [] dp; static HashSet<Integer> [] nodes; ...
np
1242_C. Sum Balance
CODEFORCES
import java.io.*; import java.util.*; import static java.lang.Math.*; public class Main { long mod = (long) (1e9 + 7); void solve() throws Throwable { long x = readLong(), k = readLong(); if (x == 0) { System.out.println(0); return; } long r = solveFas...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.util.Scanner; public class A { public static void main(String[] args) { Scanner s = new Scanner(System.in); long l = s.nextLong(); long r = s.nextLong(); s.close(); if (r-l<2 || (r-l==2 && l%2==1)) { System.out.print("-1"); return; } long beg = l%2==0 ? l : l+1; if (beg+2>r) S...
constant
483_A. Counterexample
CODEFORCES
import java.util.*; import static java.lang.Math.*; public final class FollowTrafficRules { private static double[] acce(double i, double a, double v) { double[] r = new double[2]; r[0] = (v - i)/a; r[1] = 1d/2d * a * pow(r[0], 2) + i * r[0]; return r; } private static doub...
constant
5_D. Follow Traffic Rules
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
908_C. New Year and Curling
CODEFORCES
import java.io.*; import java.util.*; import java.math.*; public class P255D { @SuppressWarnings("unchecked") public void run() throws Exception { long n = nextLong(); long x = nextLong(); long y = nextLong(); long c = nextLong(); if ((n == 1) || (c == 1)) { println(0); return; ...
logn
256_B. Mr. Bender and Square
CODEFORCES