Submission #1691666


Source Code Expand

#include<bits/stdc++.h>

using namespace std;

int N;
string S;
int dp[500001];

int sz[500001]; // 1 が何個連続しているか

int main()
{
  cin >> N;
  cin >> S;

  for(int i = 0; i < S.size(); i++) {
    if(S[i] == '1') {

      // 1111101 型
      if(i > 0 && S[i - 1] == '0') {
        for(int j = i - 2; j >= 0; j--) {
          if(S[j] == '0') break;
          dp[i + 1] = max(dp[i + 1], dp[j] + (i - 1) - j);
        }
      }

      // 1011111 型
      if(i + 1 < N && S[i + 1] == '0') {
        for(int j = i + 2; j < N; j++) {
          if(S[j] == '0') break;
          dp[j + 1] = max(dp[j + 1], dp[i] + j - (i + 1));
        }
      }

    }

    dp[i + 1] = max(dp[i], dp[i + 1]);
  }

  cout << dp[S.size()] << endl;
}

Submission Info

Submission Time
Task D - 101 to 010
User ei13333
Language C++14 (GCC 5.4.1)
Score 700
Code Size 782 Byte
Status AC
Exec Time 23 ms
Memory 2820 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 700 / 700
Status
AC × 2
AC × 39
Set Name Test Cases
Sample example0.txt, example1.txt
All 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, example0.txt, example1.txt
Case Name Status Exec Time Memory
000.txt AC 11 ms 1540 KB
001.txt AC 6 ms 1028 KB
002.txt AC 11 ms 1540 KB
003.txt AC 7 ms 1028 KB
004.txt AC 9 ms 1284 KB
005.txt AC 12 ms 1540 KB
006.txt AC 3 ms 512 KB
007.txt AC 6 ms 896 KB
008.txt AC 2 ms 256 KB
009.txt AC 17 ms 2180 KB
010.txt AC 20 ms 2820 KB
011.txt AC 20 ms 2820 KB
012.txt AC 21 ms 2820 KB
013.txt AC 21 ms 2820 KB
014.txt AC 22 ms 2820 KB
015.txt AC 23 ms 2820 KB
016.txt AC 23 ms 2820 KB
017.txt AC 23 ms 2820 KB
018.txt AC 23 ms 2820 KB
019.txt AC 23 ms 2820 KB
020.txt AC 20 ms 2820 KB
021.txt AC 21 ms 2820 KB
022.txt AC 23 ms 2820 KB
023.txt AC 21 ms 2820 KB
024.txt AC 22 ms 2820 KB
025.txt AC 22 ms 2820 KB
026.txt AC 22 ms 2820 KB
027.txt AC 22 ms 2820 KB
028.txt AC 22 ms 2820 KB
029.txt AC 22 ms 2820 KB
030.txt AC 22 ms 2820 KB
031.txt AC 22 ms 2820 KB
032.txt AC 23 ms 2820 KB
033.txt AC 22 ms 2820 KB
034.txt AC 22 ms 2820 KB
035.txt AC 23 ms 2820 KB
036.txt AC 23 ms 2820 KB
example0.txt AC 1 ms 256 KB
example1.txt AC 1 ms 256 KB