Submission #1417416
Source Code Expand
import java.util.Scanner; public class Main { static int N = 0; static String line = null; static int[] dp; private static Scanner scanner; public static void main(String[] args) { scanner = new Scanner(System.in); N = scanner.nextInt(); line = scanner.next(); dp = new int[N]; //for(int i = 0; i < N; i++) dp[i] = -1; // System.out.println(dfs(0)); /*static int dfs(int k) { if(k >= N -1) return 0; if(dp[k] != -1) return dp[k]; int result = 99999999; int temp = 0; if(line.charAt(k) == 'X') temp = 1; for(int i = 1; i <= 3; i++){ result = Math.min(result, dfs(k + i) + temp); } return dp[k] = result; } */ boolean[] ng = new boolean[N]; for (int i=0;i<N;i++){ dp[i] = 0; } for(int k = 0; k<N; k++) { if(ng[k]) continue; if(k==0) dp[k]=0; if(k==1) dp[k]=dp[k-1]; if(k>1) dp[k]=Math.min(dp[k-1], dp[k-2]); if(k>2) dp[k]=Math.min(dp[k], dp[k-3]); if(line.charAt(k) == 'X') dp[k]=dp[k]+1; } System.out.println(dp[N-1]); } }
Submission Info
Submission Time | |
---|---|
Task | B - 雨上がり |
User | RYOSKATE |
Language | Java8 (OpenJDK 1.8.0) |
Score | 50 |
Code Size | 1040 Byte |
Status | AC |
Exec Time | 106 ms |
Memory | 21844 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 50 / 50 | ||
Status |
|
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 | 93 ms | 19796 KB |
case_001.txt | AC | 93 ms | 19796 KB |
case_002.txt | AC | 93 ms | 19796 KB |
case_003.txt | AC | 91 ms | 18900 KB |
case_004.txt | AC | 94 ms | 19796 KB |
case_005.txt | AC | 92 ms | 18644 KB |
case_006.txt | AC | 93 ms | 19668 KB |
case_007.txt | AC | 95 ms | 19412 KB |
case_008.txt | AC | 92 ms | 20692 KB |
case_009.txt | AC | 94 ms | 20948 KB |
case_010.txt | AC | 93 ms | 19796 KB |
case_011.txt | AC | 94 ms | 20564 KB |
case_012.txt | AC | 92 ms | 19924 KB |
case_013.txt | AC | 94 ms | 20948 KB |
case_014.txt | AC | 94 ms | 19924 KB |
case_015.txt | AC | 98 ms | 19796 KB |
case_016.txt | AC | 92 ms | 19796 KB |
case_017.txt | AC | 99 ms | 19156 KB |
case_018.txt | AC | 99 ms | 21332 KB |
case_019.txt | AC | 94 ms | 21716 KB |
case_020.txt | AC | 98 ms | 21716 KB |
case_021.txt | AC | 94 ms | 20688 KB |
case_022.txt | AC | 96 ms | 21716 KB |
case_023.txt | AC | 93 ms | 18772 KB |
case_024.txt | AC | 92 ms | 21716 KB |
case_025.txt | AC | 93 ms | 19796 KB |
case_026.txt | AC | 92 ms | 19796 KB |
case_027.txt | AC | 93 ms | 21588 KB |
case_028.txt | AC | 94 ms | 17492 KB |
case_029.txt | AC | 95 ms | 21712 KB |
case_030.txt | AC | 93 ms | 18640 KB |
case_031.txt | AC | 95 ms | 19792 KB |
case_032.txt | AC | 95 ms | 18900 KB |
case_033.txt | AC | 94 ms | 21716 KB |
case_034.txt | AC | 96 ms | 20948 KB |
case_035.txt | AC | 93 ms | 21716 KB |
case_036.txt | AC | 93 ms | 21844 KB |
case_037.txt | AC | 95 ms | 21716 KB |
case_038.txt | AC | 95 ms | 19668 KB |
case_039.txt | AC | 101 ms | 19284 KB |
case_040.txt | AC | 101 ms | 21588 KB |
case_041.txt | AC | 106 ms | 18644 KB |
case_042.txt | AC | 94 ms | 17108 KB |