기록하기록

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.parseInt(br.readLine()); Integer [] arr = new Integer [N]; StringTokenizer s..

소인수분해, 누적합 import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); int answer = 0; while (n >= 5) { answer += n / 5; n /= 5; } System.out.println(answer); } }

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { static int N; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); N = Integer.parseInt(br.readLine()); int cnt = 0; while (N > 0){ cnt += solution(N); N--; } System.out.println(cnt); } private static int..

재귀에 대해 걍 가볍게 짚고 넘어가볼 수 있는 문제였다. import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.StringTokenizer; public class Main { public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); n = Integer.parseInt(br.readLine()); System.out.println("어느 한 컴퓨터공학과 학생이 유명한 교수님을 찾아가 물었다."); solution(0); } static..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; class Person{ int w,h,rank; Person(int weight,int height){ this.w = weight; this.h = height; } } public class Main { static int [][] dp = new int[15][15]; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; public class Main { static int [][] dp = new int[15][15]; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int tc = Integer.parseInt(br.readLine()); int cnt = 2; int endNumber = 0; if(tc == 1){ System..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(br.readLine()); int a = Integer.parseInt(st.nextToken()); int b = Integer.parseInt(st.next..

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.parseInt(br.readLine()); for (int i = 0; i < N; i++) { StringTokenizer st = new StringTokenizer(br.re..

class Point implements Comparable{ int x,y; public Point(int x,int y){ this.x = x; this.y = y; } @Override public int compareTo(Point o) { if(this.x == o.x){ return this.y - o.y; } return this.x - o.x; } @Override public String toString() { return x+" " + y; } } public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamR..

import java.util.*; public class Main { // 1. 두개의 체스판 static char [][] board = { "WBWBWBWB".toCharArray(), "BWBWBWBW".toCharArray(), "WBWBWBWB".toCharArray(), "BWBWBWBW".toCharArray(), "WBWBWBWB".toCharArray(), "BWBWBWBW".toCharArray(), "WBWBWBWB".toCharArray(), "BWBWBWBW".toCharArray()}; static char [][] board2 = { "BWBWBWBW".toCharArray(), "WBWBWBWB".toCharArray(), "BWBWBWBW".toCharArray(), "W..