Submission #1417442


Source Code Expand

import java.util.Scanner;

public class Main {
	static int n = 0;
	static String line = null;
	static int memo[];

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		n = sc.nextInt();
		line = sc.next();
		memo = new int[n];
		for (int i = 0; i < n; i++) {
			memo[i] = 0;
		}
		System.out.println(dfs(n));
	}

	public static int dfs(int k) {
		for (int i = 0; i < k; i++) {
			if (i == 0) {
				memo[i] = 0;
			} else if (i == 1) {
				memo[i] = memo[0];
			} else if (i == 2) {
				memo[i] = Math.min(memo[1], memo[0]);
			} else {
				memo[i] = min(memo[i - 1], memo[i - 2], memo[i - 3]);
			}
			if (line.charAt(i) == 'X') {
				memo[i]++;
			}
		}
		return memo[k - 1];
	}

	public static int min(int a, int b, int c) {
		if (a <= b && a <= c)
			return a;
		else if (b <= a && b <= c)
			return b;
		else
			return c;
	}
}

Submission Info

Submission Time
Task B - 雨上がり
User RYOSKATE
Language Java8 (OpenJDK 1.8.0)
Score 50
Code Size 904 Byte
Status AC
Exec Time 114 ms
Memory 23892 KB

Judge Result

Set Name All
Score / Max Score 50 / 50
Status
AC × 43
Set Name Test Cases
All case_000.txt, case_001.txt, case_002.txt, case_003.txt, case_004.txt, case_005.txt, case_006.txt, case_007.txt, case_008.txt, case_009.txt, case_010.txt, case_011.txt, case_012.txt, case_013.txt, case_014.txt, case_015.txt, case_016.txt, case_017.txt, case_018.txt, case_019.txt, case_020.txt, case_021.txt, case_022.txt, case_023.txt, case_024.txt, case_025.txt, case_026.txt, case_027.txt, case_028.txt, case_029.txt, case_030.txt, case_031.txt, case_032.txt, case_033.txt, case_034.txt, case_035.txt, case_036.txt, case_037.txt, case_038.txt, case_039.txt, case_040.txt, case_041.txt, case_042.txt
Case Name Status Exec Time Memory
case_000.txt AC 95 ms 18896 KB
case_001.txt AC 100 ms 23892 KB
case_002.txt AC 92 ms 19924 KB
case_003.txt AC 92 ms 20052 KB
case_004.txt AC 92 ms 21588 KB
case_005.txt AC 93 ms 20948 KB
case_006.txt AC 96 ms 21716 KB
case_007.txt AC 92 ms 19668 KB
case_008.txt AC 91 ms 21844 KB
case_009.txt AC 91 ms 19924 KB
case_010.txt AC 114 ms 19284 KB
case_011.txt AC 99 ms 21844 KB
case_012.txt AC 105 ms 21972 KB
case_013.txt AC 92 ms 18644 KB
case_014.txt AC 93 ms 21204 KB
case_015.txt AC 92 ms 21972 KB
case_016.txt AC 91 ms 21844 KB
case_017.txt AC 92 ms 21844 KB
case_018.txt AC 93 ms 21204 KB
case_019.txt AC 93 ms 23764 KB
case_020.txt AC 92 ms 21716 KB
case_021.txt AC 95 ms 19668 KB
case_022.txt AC 92 ms 19540 KB
case_023.txt AC 94 ms 17492 KB
case_024.txt AC 92 ms 19924 KB
case_025.txt AC 91 ms 18772 KB
case_026.txt AC 93 ms 16976 KB
case_027.txt AC 93 ms 20692 KB
case_028.txt AC 91 ms 19028 KB
case_029.txt AC 91 ms 19924 KB
case_030.txt AC 92 ms 18516 KB
case_031.txt AC 93 ms 20052 KB
case_032.txt AC 93 ms 19668 KB
case_033.txt AC 93 ms 21588 KB
case_034.txt AC 97 ms 21076 KB
case_035.txt AC 104 ms 19796 KB
case_036.txt AC 99 ms 19792 KB
case_037.txt AC 91 ms 18772 KB
case_038.txt AC 90 ms 20564 KB
case_039.txt AC 94 ms 21716 KB
case_040.txt AC 92 ms 19924 KB
case_041.txt AC 107 ms 21460 KB
case_042.txt AC 93 ms 19412 KB