Submission #1261717


Source Code Expand

import java.util.Scanner;

public class Main {
	
	public static void main(String[] args) {
		new Main().solve();
	}
	int N;
	String S;
	int dp[];
	
	void solve(){
		Scanner sc=new Scanner(System.in);
		N=sc.nextInt();
		S=sc.next();
		dp=new int[N];
		for(int i=0;i<N;i++)dp[i]=-1;
		
		System.out.println(dfs(0));
	}
	//kマス目にいるときに残りの水たまりに入らないといけない回数を求める関数
	int dfs(int k){
		if(k>=N-1) return 0;
		if(dp[k]!=-1)return dp[k];
		
		int ret=99999999;
		int temp=0;
		//その地点が水たまりなら回数を1増やす
		if(S.charAt(k)=='X')temp=1;
		
		for(int i=1;i<=3;i++){
			ret=Math.min(ret, dfs(k+i)+temp);
		}
		return dp[k]=ret;
		
	}
}

Submission Info

Submission Time
Task B - 雨上がり
User kwkm0429
Language Java8 (OpenJDK 1.8.0)
Score 50
Code Size 752 Byte
Status AC
Exec Time 107 ms
Memory 24276 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 107 ms 24276 KB
case_001.txt AC 92 ms 21844 KB
case_002.txt AC 93 ms 19924 KB
case_003.txt AC 92 ms 18900 KB
case_004.txt AC 93 ms 20692 KB
case_005.txt AC 92 ms 21204 KB
case_006.txt AC 91 ms 21204 KB
case_007.txt AC 92 ms 18516 KB
case_008.txt AC 100 ms 19796 KB
case_009.txt AC 92 ms 22100 KB
case_010.txt AC 93 ms 21332 KB
case_011.txt AC 91 ms 19796 KB
case_012.txt AC 94 ms 21204 KB
case_013.txt AC 92 ms 19796 KB
case_014.txt AC 92 ms 19796 KB
case_015.txt AC 92 ms 20564 KB
case_016.txt AC 92 ms 20692 KB
case_017.txt AC 94 ms 19156 KB
case_018.txt AC 95 ms 21332 KB
case_019.txt AC 92 ms 21716 KB
case_020.txt AC 94 ms 19540 KB
case_021.txt AC 94 ms 20948 KB
case_022.txt AC 90 ms 19796 KB
case_023.txt AC 90 ms 18644 KB
case_024.txt AC 93 ms 19796 KB
case_025.txt AC 96 ms 21716 KB
case_026.txt AC 92 ms 19796 KB
case_027.txt AC 92 ms 21972 KB
case_028.txt AC 91 ms 21844 KB
case_029.txt AC 92 ms 20564 KB
case_030.txt AC 94 ms 19668 KB
case_031.txt AC 90 ms 19924 KB
case_032.txt AC 92 ms 19668 KB
case_033.txt AC 97 ms 21844 KB
case_034.txt AC 96 ms 18516 KB
case_035.txt AC 94 ms 18900 KB
case_036.txt AC 90 ms 19924 KB
case_037.txt AC 92 ms 17620 KB
case_038.txt AC 91 ms 23764 KB
case_039.txt AC 104 ms 21332 KB
case_040.txt AC 91 ms 19924 KB
case_041.txt AC 92 ms 21076 KB
case_042.txt AC 92 ms 19796 KB