Traveling Programmer

https://www.acmicpc.net/problem/2828문제풀이import 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 t = sc.nextInt(); int move = 0; int left = 0; int right = 0 + (m - 1); for(int i = 0; i right) { move += tmp - right; right = tmp; left = tmp - (m - ..

https://www.acmicpc.net/problem/14916 문제 풀이 import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int N = sc.nextInt(); int count = 0; while(true){ if(N%5 == 0){ count += N/5; System.out.println(count); break; }else{ N -= 2; count++; } if(N < 0){ System.out.println(-1); break; } } } } 기본적인 아이디어는 5의 나머지를 제대로 활용하는 것이다. 처음엔 홀수와 짝..

https://www.acmicpc.net/problem/1343 문제 풀이 import java.util.*; public class Main { public static void main(String args[]) { Scanner sc = new Scanner(System.in); String s = sc.next(); sc.close(); String res = poliomino(s); System.out.println(res); } private static String poliomino(String s) { String ans = ""; String A = "AAAA", B = "BB"; s = s.replaceAll("XXXX", A); ans = s.replaceAll("XX", B); i..