src
stringlengths
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64.6k
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import java.io.File; import java.io.FileNotFoundException; import java.io.PrintWriter; import java.util.Arrays; import java.util.PriorityQueue; import java.util.Queue; import java.util.Scanner; public class R035C { public void debug(Object... objects) { System.err.println(Arrays.deepToString(objects)); } publ...
cubic
35_C. Fire Again
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
909_C. Python Indentation
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Scanner; /** * Built using CHelper plug-in * Actual solution is at the top */ public class Main { public static void main(String[] args) { InputStream inputStream = System.in...
logn
1177_B. Digits Sequence (Hard Edition)
CODEFORCES
import java.util.*; import java.io.*; import static java.lang.Math.*; public class Main { static final long MOD = 1_000_000_007, INF = 1_000_000_000_000_000_000L; static final int INf = 1_000_000_000; static FastReader reader; static PrintWriter writer; public static void main(String[] args) { ...
np
1102_F. Elongated Matrix
CODEFORCES
// Don't place your source in a package import java.lang.reflect.Array; import java.text.DecimalFormat; import java.util.*; import java.lang.*; import java.io.*; import java.math.*; // Please name your class Main public class Main { static FastScanner fs=new FastScanner(); static class FastScanner {//sc...
np
1102_F. Elongated Matrix
CODEFORCES
import java.awt.Point; import java.io.*; import java.util.*; import static java.lang.Math.*; public class ProblemA_15 { final boolean ONLINE_JUDGE=System.getProperty("ONLINE_JUDGE")!=null; BufferedReader in; PrintWriter out; StringTokenizer tok=new StringTokenizer(""); void init() throw...
nlogn
15_A. Cottage Village
CODEFORCES
import java.util.LinkedList; import java.util.Scanner; public class HexadecimalsTheorem { public static void main(String[] args) { Scanner in = new Scanner(System.in); int num = in.nextInt(); LinkedList<Integer> result = new LinkedList<Integer>(); int temp0 = 1; int temp1 =...
constant
199_A. Hexadecimal's theorem
CODEFORCES
import java.util.* ; import java.io.* ; public class PythonIndentation { public static void main(String args[]) { Scanner in = new Scanner(System.in) ; int n = in.nextInt() ; boolean[] lst = new boolean[n] ; for(int i=0;i<n;i++) { lst[i] = (in.next().equals("s"))?false:true ; } System.out.println(dp...
quadratic
909_C. Python Indentation
CODEFORCES
import java.util.*; import java.io.*; public class Main{ public static void main(String[] args) { Scanner sc=new Scanner(System.in); int t=sc.nextInt(); while(t-->0) { int n=sc.nextInt(); if(n%2==1) { System.out.println("NO"); ...
linear
1515_B. Phoenix and Puzzle
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.IOException; import java.util.LinkedList; import java.util.StringTokenizer; public class GeorgeAndInterestingGraph { public static void main(String[] args) { MyScanner sc = new MyScanner(); int N = sc.nextInt()...
cubic
387_D. George and Interesting Graph
CODEFORCES
import com.sun.org.apache.regexp.internal.RE; import java.io.*; import java.nio.file.ClosedWatchServiceException; import java.nio.file.OpenOption; import java.security.SecureRandom; import java.util.*; public class Main { public static void main(String[] args) throws FileNotFoundException { ConsoleIO io =...
quadratic
908_C. New Year and Curling
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.io.FileReader; import java.util.StringTokenizer; import java.io.IOException; import java.util.Arrays; public class Fish extends Thread { public Fish() { this.input = new BufferedReader(new InputStreamR...
np
16_E. Fish
CODEFORCES
//package CF489; //comment this line import java.io.*; import java.util.*; import java.math.*; public class B { private static long MOD=1000000007; private static BigInteger m=new BigInteger(1000000007+""); private static long pow(long x, long a) { if(a==0) return 1; ...
logn
992_C. Nastya and a Wardrobe
CODEFORCES
import java.util.Scanner; public class Sasha1113A { static int solution(int n, int v){ int count; if(v>=n) return n-1; else{ count = (v-1) + ((n-v)*(n-v+1))/2; } return count; } public static v...
constant
1113_A. Sasha and His Trip
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public class D { private void solve() { br = new BufferedReader(new InputStreamReader(System.in)); out = new PrintWriter(System.out); int n = nextInt(), m = nextI...
quadratic
1179_B. Tolik and His Uncle
CODEFORCES
//Implemented By Aman Kotiyal Date:-30-May-2021 Time:-7:54:28 pm import java.io.*; import java.util.*; public class ques3 { public static void main(String[] args)throws Exception{ new ques3().run();} long mod=1000000000+7; void solve() throws Exception { for(int ii=ni();ii>0;ii--) { int n=ni(); //Arr...
cubic
1523_C. Compression and Expansion
CODEFORCES
import java.util.*; public class Pizza { public static void main(String[] args) { Scanner sc = new Scanner(System.in); long num = sc.nextLong() + 1; sc.close(); System.out.println(num % 2 == 0 || num == 1 ? num / 2 : num); } }
constant
979_A. Pizza, Pizza, Pizza!!!
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...
logn
1019_B. The hat
CODEFORCES
import java.awt.geom.*; import java.io.*; import java.math.*; import java.text.*; import java.util.*; import java.util.regex.*; /* br = new BufferedReader(new FileReader("input.txt")); pw = new PrintWriter(new BufferedWriter(new FileWriter("output.txt"))); br = new BufferedReader(new InputStreamReader(Sys...
quadratic
911_D. Inversion Counting
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.*; 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
/* If you want to aim high, aim high Don't let that studying and grades consume you Just live life young ****************************** If I'm the sun, you're the moon Because when I go up, you go down ******************************* I'm working for the day I will surpass you https://www.a2oj.com/Ladder16.html */ impor...
quadratic
1141_F2. Same Sum Blocks (Hard)
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 pandusonu */ public class ...
quadratic
983_B. XOR-pyramid
CODEFORCES
/* stream Butter! eggyHide eggyVengeance I need U xiao rerun when */ import static java.lang.Math.max; import static java.lang.Math.min; import static java.lang.Math.abs; import static java.lang.System.out; import java.util.*; import java.io.*; import java.math.*; public class x1523C { public static void main(Str...
cubic
1523_C. Compression and Expansion
CODEFORCES
import java.util.*; import java.io.*; public class InversionCounting { public static void main(String[] args) { Scanner sc = new Scanner(System.in); PrintWriter pw = new PrintWriter(System.out); int n = Integer.parseInt(sc.nextLine()); int inversions = 0; int[] data = new int[n]; StringTokenizer st ...
quadratic
911_D. Inversion Counting
CODEFORCES
import java.util.Scanner; public class A1177 { public static long exponential(long a, long b){ long result = 1; for(int i=0;i<b;i++){ result *= a; } return result; } public static void main(String args[]){ Scanner scanner = new Scanner(System.in); ...
logn
1177_B. Digits Sequence (Hard Edition)
CODEFORCES
import java.io.*; import java.util.*; public class A4 { public BufferedReader input; public PrintWriter output; public StringTokenizer stoken = new StringTokenizer(""); public static void main(String[] args) throws IOException { new A4(); } A4() throws IOException { input = n...
nlogn
1075_C. The Tower is Going Home
CODEFORCES
import java.util.*; import java.io.*; public class RGBSubstring { public static void main(String[] args) { FastScanner scanner = new FastScanner(); PrintWriter out = new PrintWriter(System.out); int Q = scanner.nextInt(); while(Q-->0) { int N = scanner.nextInt(); ...
quadratic
1196_D1. RGB Substring (easy version)
CODEFORCES
import java.io.*; import java.util.*; import java.math.*; import static java.lang.Math.*; import static java.math.BigInteger.*; import static java.lang.Character.*; import static java.util.Arrays.*; import static java.util.Collections.*; public class A { public void run() { Scanner sc = new Scanner(System...
cubic
23_A. You're Given a String...
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.util.StringTokenizer; import java.io.InputStreamReader; public class Main{ public static void main(String[] args)throws IOException{ BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); String s=br.readLine();...
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.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper plug-in * Actual soluti...
logn
713_B. Searching Rectangles
CODEFORCES
import java.io.*; import java.math.*; import static java.lang.Math.*; import java.security.SecureRandom; import static java.util.Arrays.*; import java.util.*; import java.util.regex.Matcher; import java.util.regex.Pattern; import sun.misc.Regexp; import java.awt.geom.*; import sun.net.www.content.text.plain; public c...
logn
287_B. Pipeline
CODEFORCES
import java.util.ArrayList; import java.util.Scanner; public class Main { static ArrayList<Edge> graph; static ArrayList<ArrayList<Integer>> graphForKuhn; static int n, m, u = 0; static int mt[]; static int used[]; public static void main(String[] args) { formGraph(); Sy...
cubic
387_D. George and Interesting Graph
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.Arrays; import java.util.StringTokenizer; /** * @author Don Li */ public class EhabAndAComponentChoosingProblem { long INF = (long) 1e18; int n; int[] a; ...
linear
1088_E. Ehab and a component choosing problem
CODEFORCES
import java.io.*; import java.util.*; public class l { //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ///...
logn
1195_B. Sport Mafia
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.Arrays; import java.util.HashMap; import java.io.IOException; import java.util.LinkedHashMap; import java.io.UncheckedIOException; import java.util.Map; import java.io.Closeable; import jav...
np
1242_C. Sum Balance
CODEFORCES
import java.io.*; import java.util.*; public class A { FastScanner in; PrintWriter out; void solve() { int tc = in.nextInt(); for (int t = 0; t < tc; t++) { int n = in.nextInt(); int m = in.nextInt(); O[] a = new O[n * m]; int[][] cols = new ...
np
1209_E1. Rotate Columns (easy version)
CODEFORCES
import java.util.Scanner; import java.io.StreamTokenizer; import java.io.InputStreamReader; import java.io.IOException; import java.io.PrintStream; import java.io.BufferedReader; import java.io.OutputStream; import java.io.PrintWriter; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution i...
constant
343_A. Rational Resistance
CODEFORCES
import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.Arrays; import java.util.LinkedList; import java.util.StringTokenizer; import java.util.Queue; public class Solution{ static int[] dx = {1,-1,0,0}; sta...
cubic
35_C. Fire Again
CODEFORCES
import java.io.*; import java.math.*; import java.util.*; public class Primes { static Scanner in = new Scanner( new BufferedReader( new InputStreamReader( System.in ) ) ); public static void main( String[] args ) { int n = in.nextInt(), k = in.nextInt(), count = 0; boolean[] isP = new boolean[n+1]; for( int...
linear
17_A. Noldbach problem
CODEFORCES
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 Codechef { public static void main(String[] args) { Scanner s = new Scanner(System.in); int n=s.nextInt(); int a[]=new int[n]; ...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.util.Scanner; public class Counterexample { public static void main(String[] args) { // TODO Auto-generated method stub Scanner sc= new Scanner(System.in); long l=sc.nextLong(),r=sc.nextLong(); if (l%2==0&&r-l>=2) System.out.print(l+" "+(l+1)+" "+(l+2)); else if (l%2==1&&r-l>=3) System.out.print...
constant
483_A. Counterexample
CODEFORCES
import java.util.*; import java.io.*; public class A{ public static void main(String args[]){ Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int ans = 0; for(int i = 1; i <= n; i++){ ans += ((i*2) <= n) ? i : n-i+1; ...
linear
909_B. Segments
CODEFORCES
import java.util.Scanner; public final class b1 { public static void main(String[] args) { Scanner datain = new Scanner(System.in); long l=datain.nextLong(); long r=datain.nextLong(); if(r-l<2){System.out.print(-1);}else{ if(((r-l)==2)&&(l%2==1)){System.out.print(-1);}else{ if((l%2)==0){System.out.pr...
constant
483_A. Counterexample
CODEFORCES
import java.util.Map; import java.io.OutputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.InputMismatchException; import java.util.TreeMap; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top */ public class Main { public static void main(...
linear
468_B. Two Sets
CODEFORCES
import java.util.Arrays; import java.util.Random; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner stdin = new Scanner(System.in); /*int n = stdin.nextInt(); for(int i = 0; i < n; i++) { test(stdin); }*/ test...
linear
1159_B. Expansion coefficient of the array
CODEFORCES
import java.util.*; public class Contests { public static void main(String[] args) { Scanner clavier=new Scanner(System.in); long a=clavier.nextLong(); clavier.close(); if(a==1) System.out.println(5); else System.out.println(25); } }
constant
630_A. Again Twenty Five!
CODEFORCES
import java.util.*; import java.io.*; import java.math.BigInteger; public class Main { static final long mod=(int)1e9+7; public static void main(String[] args) throws Exception { FastReader in=new FastReader(); PrintWriter pw=new PrintWriter(System.out); int n=in.nextInt(); long ans=0; ...
linear
1062_D. Fun with Integers
CODEFORCES
import java.util.*; public class CompressionAndExpansion { public static void main(String[] args) { Scanner in = new Scanner(System.in); int T = in.nextInt(); for (int t = 0; t < T; t++) { int N = in.nextInt(); List<Integer> list = new ArrayList<>(); for (...
cubic
1523_C. Compression and Expansion
CODEFORCES
import java.awt.*; import java.io.PrintWriter; import java.util.*; public class Main { 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(); } bo...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int n = scanner.nextInt(); int[] P = new int[n]; int[] check=new int[n]; for (int i = 1; i < n; i++) { P[i] = scanner.nextInt(); ...
linear
913_B. Christmas Spruce
CODEFORCES
import java.util.Scanner; public class origami { public static void main(String args[]){ Scanner input = new Scanner(System.in); double n = input.nextInt(); double k = input.nextInt(); double red = 0; double green = 0; double blue = 0; double ans = 0; red = (2 * n) / k; green = (5 * n) / k; blue ...
constant
1080_A. Petya and Origami
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.IOException; import java.util.Deque; import java.util.ArrayList; import java.io.UncheckedIOException; import java.util.List; import java.io.Closeable; import java.io.Writer; import java.io.Ou...
cubic
1523_C. Compression and Expansion
CODEFORCES
import java.util.Scanner; import java.util.ArrayList; import java.util.Collections; public class Paint_The_Numbers { public static void main(String[] args) { Scanner scan = new Scanner(System.in); ArrayList<Integer> paint = new ArrayList<Integer>(); int num = scan.nextInt(); for(int i = 0; i < num;i++) pai...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.util.*; import java.awt.*; public class A { static Comparator<Point> cmp = new Comparator<Point>() { public int compare(Point a, Point b) { if(a.x < b.x) return -1; else if(a.x > b.x) return 1; return 0; } }; public static void main(String args[]) { Scanner scan = new Scanne...
nlogn
15_A. Cottage Village
CODEFORCES
import java.util.*; import java.io.*; public class Main { public static void main(String args[]) {new Main().run();} FastReader in = new FastReader(); PrintWriter out = new PrintWriter(System.out); void run(){ work(); out.flush(); } long mod=998244353; long gcd(long a,long ...
cubic
1515_E. Phoenix and Computers
CODEFORCES
import java.util.Scanner; public class A { public static void main(String[] args) { Scanner s = new Scanner(System.in); int n = s.nextInt(); System.out.println(n/2*3); } }
constant
84_A. Toy Army
CODEFORCES
import java.util.*; import java.lang.*; import java.io.*; import java.math.*; public class Main { public static StreamTokenizer in; public static PrintStream out; public static BufferedReader br; public static String readString() throws IOException { in.nextToken(); return in.sval; ...
linear
46_C. Hamsters and Tigers
CODEFORCES
import java.io.*; import java.util.*; public class a { public static void main(String[] args) throws IOException { input.init(System.in); PrintWriter out = new PrintWriter(System.out); long n = input.nextLong(); if(n == 1) out.println(5); else out.println(25); out.close(); } public static class input { static B...
constant
630_A. Again Twenty Five!
CODEFORCES
import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.StreamTokenizer; import java.lang.reflect.Array; import java.util.Arrays; public class a {...
nlogn
22_A. Second Order Statistics
CODEFORCES
import java.io.IOException; import java.io.PrintWriter; import java.util.Scanner; public class C43 implements Runnable { public Scanner in; public PrintWriter out; final static String TASK_NAME = ""; C43() throws IOException { in = new Scanner( System.in ); // in = new StreamTokeniz...
linear
46_C. Hamsters and Tigers
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; public class Solution { //<editor-fold desc="input parse" defaultstate="collapsed"> private static StringTokenizer st; private static BufferedReader reader = new BufferedReader(new I...
nlogn
169_A. Chores
CODEFORCES
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /** * * @author Mostafa */ public class Main { public static void main(String[] args) throws IOException { BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.pars...
constant
84_A. Toy Army
CODEFORCES
import java.io.*; import java.util.*; import java.math.*; public class Main { static StringTokenizer st; static PrintWriter out = new PrintWriter(System.out,true); static BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); public static int nextInt() throws Exception { if...
linear
224_B. Array
CODEFORCES
import java.io.PrintWriter; import java.util.Scanner; /** * Created with IntelliJ IDEA. * User: vaibhav mittal * Date: 23/6/12 * Time: 1:15 AM * To change this template use File | Settings | File Templates. */ public class Main { public static void main(String[] args) { Scanner in = new Scanner(Syste...
constant
199_A. Hexadecimal's theorem
CODEFORCES
import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.StringTokenizer; /* public class _909C { } */ public class _909C { int mod = (int) 1e9 + 7; public void solve() throws FileNotFoundEx...
quadratic
909_C. Python Indentation
CODEFORCES
import static java.util.Arrays.*; import static java.lang.Math.*; import java.util.*; import java.io.*; public class A implements Runnable { public static void main(String [] args) throws IOException { new Thread(null, new A(), "", 1 << 20).start(); } String file = "input"; BufferedReader input; PrintWriter...
nlogn
15_A. Cottage Village
CODEFORCES
import java.io.*; import java.util.*; public class bender { static long[] dx = new long[]{0, 1, 0, -1}; static long[] dy = new long[]{-1, 0, 1, 0}; static long n, x, y, c; public static void main(String[] args) throws IOException { BufferedReader in = new BufferedReader(new InputStreamRead...
logn
256_B. Mr. Bender and Square
CODEFORCES
/** * Created by Ariana Herbst on 12/29/17. */ import java.util.*; import java.io.*; /** * Created by Ariana Herbst on 12/29/17 */ public class GB2017C { static int n, r; static int[] x; static Map<Integer, Double> horo; public static void main(String[] args) { FastScanner sc = new FastSca...
quadratic
908_C. New Year and Curling
CODEFORCES
import java.io.*; import java.util.*; /** * @author Vaibhav Mittal */ public class Main { public static void main(String[] args) throws Exception { Scanner in = new Scanner(System.in); PrintWriter out = new PrintWriter(System.out); int testCases = 1; Task solver = new Task(); ...
nlogn
169_A. Chores
CODEFORCES
import java.io.*; import java.util.*; import static java.lang.Math.*; public class A { public static void main(String[] args) throws Exception { Scanner in = new Scanner(System.in); PrintWriter pw = new PrintWriter(System.out); int n = in.nextInt(); int a[] = new int[n]; fo...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.io.*; import java.util.*; public class CF1515E extends PrintWriter { CF1515E() { super(System.out, true); } Scanner sc = new Scanner(System.in); public static void main(String[] $) { CF1515E o = new CF1515E(); o.main(); o.flush(); } void main() { int n = sc.nextInt(); int md = sc.nextInt(); ...
cubic
1515_E. Phoenix and Computers
CODEFORCES
import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.InputMismatchException; import java.util.*; public class ed817Q3 { public static void main(String[] args){ InputReader in = new InputReader(System.in); PrintWriter out = new PrintWriter(System.out); int t = 1; ...
logn
817_C. Really Big Numbers
CODEFORCES
import java.io.*; import java.util.*; public class A { String line; StringTokenizer inputParser; BufferedReader is; FileInputStream fstream; DataInputStream in; String FInput=""; void openInput(String file) { if(file==null)is = new BufferedReader(new InputStreamReader(System.in));//stdin else { try...
nlogn
169_A. Chores
CODEFORCES
import java.util.Scanner; public class TaxiDriversAndLyft2 { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); long n = scanner.nextLong(); long m = scanner.nextLong(); long[] people = new long[(int) (n+m)]; int[] taxiDrivers = new int[(int) (n+m)]; for(int i = 0;i< ...
linear
1075_B. Taxi drivers and Lyft
CODEFORCES
import java.util.*; public class Main { public static void main(String args[]) { (new Main()).solve(); } void solve() { Scanner cin = new Scanner(System.in); while( cin.hasNextInt() ) { int n = cin.nextInt(); int arr[] = new int[n]; for(int i=0; i<n; ++i) { arr[i] = cin...
nlogn
135_A. Replacement
CODEFORCES
import java.util.*; import java.io.*; import java.lang.*; import java.math.*; public class A { public static void main(String[] args) throws Exception { BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); // Scanner scan = new Scanner(System.in); // PrintWriter out = ne...
linear
1004_A. Sonya and Hotels
CODEFORCES
import java.util.HashMap; import java.util.Scanner; public class Solution { public static void main(String [] args){ Scanner in = new Scanner(System.in); String ins = in.nextLine(); HashMap <String,Integer> sub = new HashMap<String,Integer>(); for (int i=0;i<ins.length();i++){ ...
cubic
23_A. You're Given a String...
CODEFORCES
import java.io.*; import java.util.*; public class c { public static void main(String[] args) throws IOException { BufferedReader r = new BufferedReader(new InputStreamReader(System.in), 1); String s = r.readLine(); int n = Integer.parseInt(s); String s2 = r.readLine(); StringTokenizer st = new Stri...
nlogn
135_A. Replacement
CODEFORCES
import java.util.*; import java.io.*; public class A { static class T { public int s,p; } public static void main(String args[]) throws Exception { InputReader sc=new InputReader(System.in); int n=sc.readInt(),k=sc.readInt(),i,j,z; T m[]=new T[n]; for(i=0;i<n;i++) {m[i]=new T();m[i].s=sc.readInt();m[i]....
nlogn
166_A. Rank List
CODEFORCES
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.Arrays; import java.util.Stack; public class Main { static void debug(Object... args) { System.out.println(Arrays.deepToString(args)); } public static void main(String[] args) throws Exce...
cubic
1523_C. Compression and Expansion
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...
linear
1004_A. Sonya and Hotels
CODEFORCES
/** * Created by IntelliJ IDEA. * User: Taras_Brzezinsky * Date: 9/16/11 * Time: 1:27 PM * To change this template use File | Settings | File Templates. */ import java.io.*; import java.lang.reflect.Array; import java.util.ArrayDeque; import java.util.HashSet; import java.util.Queue; import java.util.StringTok...
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.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper...
quadratic
1209_A. Paint the Numbers
CODEFORCES
import java.io.*; import java.util.*; import static java.lang.Math.*; public class Code implements Runnable { public static void main(String[] args) throws IOException { new Thread(new Code()).start(); } private void solve() throws IOException { int n = nextInt(), m = nextInt(); ...
np
111_C. Petya and Spiders
CODEFORCES
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); System.out.println(n/2*3); } }
constant
84_A. Toy Army
CODEFORCES
import javafx.util.Pair; import java.util.*; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int n = scanner.nextInt(); int[] arr = new int[n]; int chet = 0; for (int i = 0; i < n; i++) { arr[i]=scanner.nex...
quadratic
911_D. Inversion Counting
CODEFORCES
/** * BaZ :D */ import java.util.*; import java.io.*; import static java.lang.Math.*; public class Main { static MyScanner scan; static PrintWriter pw; static long MOD = 1_000_000_007; static long INF = 1_000_000_000_000_000_000L; static long inf = 2_000_000_000; public static void main(Strin...
np
1209_E1. Rotate Columns (easy version)
CODEFORCES
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.HashSet; import java.util.Scanner; /** * Built using CHelper plug-in * Actual solution is at the top * * @author xwchen */ public class Main { public static void main(String[] args...
linear
701_C. They Are Everywhere
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.util.*; public class Test { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n= sc.nextInt(); int x= (int)Math.sqrt(n) ; int a[] = new int[n+5]; for(int i=1,o=n,j;i<=n;i+=x) for(j=(int)Math.min(i+x-1,n);j>=i;a[j--]=o--); for(int i=1;i<=n;i++)System.out.print(a[i]+" "); Syste...
linear
1017_C. The Phone Number
CODEFORCES
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); long n = in.nextLong(); long k = in.nextLong(); long res = solve(n, k); System.out.println(res); } private static long solve(long n, long k) { return solveEq(1, -3...
logn
1195_B. Sport Mafia
CODEFORCES
import java.io.*; import java.util.*; public class Main { static BufferedReader f; static StringTokenizer st; public static void main (String [] args) throws Exception { // Use BufferedReader rather than RandomAccessFile; it's much faster f = new BufferedReader(new java.io.InputStr...
logn
276_D. Little Girl and Maximum XOR
CODEFORCES
import java.util.*; public class IQ { public static void main(String[] args) { Scanner sc=new Scanner(System.in); ArrayList<Integer> e=new ArrayList<Integer>(); ArrayList<Integer> o=new ArrayList<Integer>(); int size=sc.nextInt(); for(int w=0;w<size;w++) { int x=sc.nextInt(); if(x%2==0)e.add(w+1); ...
linear
25_A. IQ test
CODEFORCES
import java.util.*; public class Main{ public static void main(String[] args){ Scanner in = new Scanner(System.in); int[] a=new int[1010]; while(in.hasNext()){ int n=in.nextInt(); String s=in.next(); int sum=0; for(int i=0;i<n;++i){ ...
linear
46_C. Hamsters and Tigers
CODEFORCES
import java.io.*; import java.util.*; import java.util.function.Function; public class Main { static int N; static int[] U, V; static int[] A; public static void main(String[] args) { FastScanner sc = new FastScanner(System.in); N = sc.nextInt(); U = new int[N-1]; V = ...
nlogn
1037_D. Valid BFS?
CODEFORCES
import java.io.*; import java.util.*; import java.math.*; public class A implements Runnable { static BufferedReader in; static PrintWriter out; static StringTokenizer st; static Random rnd; void solve() throws IOException { int n = nextInt(); long k = nextLong(); if (k == 1) { out.println(n); } else...
nlogn
274_A. k-Multiple Free Set
CODEFORCES
import java.io.BufferedReader; import java.io.Closeable; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public class EhabAndAnotherAnotherXorProblem implements Closeable { private InputReader in = new InputRead...
logn
1088_D. Ehab and another another xor problem
CODEFORCES
import java.util.*; import java.math.*; import java.io.*; public class Main { public static void main(String args[]) throws IOException { Scanner c=new Scanner(System.in); int N=c.nextInt(); int A[]=new int[N]; for(int i=0;i<N;i++) { A[i]=c.nextInt(); } Arrays.sort(A); int sum=0; for(int i=0...
nlogn
160_A. Twins
CODEFORCES
import java.io.BufferedReader; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Collections; import java.util.StringTokenizer; public class Main { public static void main(String[] args) throws Exc...
nlogn
22_A. Second Order Statistics
CODEFORCES