백준 11170 - 0의 개수

백준 11170 - 0의 개수

https://www.acmicpc.net/problem/11170

★ 풀이

간단한 구현문제

★ 소스코드

import java.io.*; import java.util.*; // 좋은 코드 흡수하기! public class Main { static BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); public static void main(String[] args) throws IOException { int T = Integer.parseInt(br.readLine()); while(T-->0) { StringTokenizer st = new StringTokenizer(br.readLine()); int n = Integer.parseInt(st.nextToken()); int m = Integer.parseInt(st.nextToken()); // 0의 개수? bw.write(countAllZero(n, m)+"

"); } bw.flush(); } static int countAllZero(int from, int to) { int ret = 0; for(int i = from; i<=to; i++) { ret+=countZero(i); } return ret; } static int countZero(int num) { int ret = 0; String s = String.valueOf(num); for(int i = 0; i

from http://sweet-smell.tistory.com/119 by ccl(A) rewrite - 2021-11-29 05:28:25