[SWEA] 1289 원재의 메모리 복구하기 Java

https://swexpertacademy.com/main/code/problem/problemDetail.do?problemLevel=3&contestProbId=AV19AcoKI9sCFAZN&categoryId=AV19AcoKI9sCFAZN&categoryType=CODE&problemTitle=&orderBy=RECOMMEND_COUNT&selectCodeLang=ALL&select-1=3&pageSize=10&pageIndex=1

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[코드]

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;

public class CodingTest {

	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int test_case = 1; test_case <= T; test_case++) {
			String num = sc.next();
			int[] array = new int[num.length()];

			for (int i = 0; i < array.length; i++) {
				array[i] = num.charAt(i) - '0';
			}

			int cur = 0;
			int count = 0;
			for (int i = 0; i < array.length; i++) {
				if (cur != array[i]) {
					cur = array[i];
					count++;
				}
			}

			System.out.println("#" + test_case + " " + count);
		}
	}
}