Submission #1174619

#	Time	Username	Problem	Language	Result	Execution time	Memory
1174619		JelalTkm	Street Lamps (APIO19_street_lamps)	C++20	0 / 100	96 ms	8264 KiB

street_lamps

#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

using namespace std;

#define int long long int

const int N = 1000 + 10;
const int md = 1e9 + 7;
const int INF = 1e18;

int32_t main(int32_t argc, char *argv[]) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int T = 1;
  // cin >> T;
  while (T--) {
    int n, q;
    cin >> n >> q;
    string s;
    cin >> s;
    s = '#' + s;
    vector<vector<int>> a(n + 1, vector<int> (n + 1));
    while (q--) {
      for (int i = 1; i <= n; i++)
        for (int j = i; j <= n; j++) {
          if (s[j] == '0') break;
          else a[i][j]++;
        }
      string c;
      cin >> c;
      if (c == "toggle") {
        int i;
        cin >> i;
        s[i] = (s[i] == '1' ? '0' : '1');
      } else {
        int l, r;
        cin >> l >> r;
        cout << a[l][r] << '\n';
      }
    }
  }

  return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20