Submission #1007260

#	Time	Username	Problem	Language	Result	Execution time	Memory
1007260		Rolo678	Fish 3 (JOI24_fish3)	C++14	0 / 100	66 ms	8940 KiB

Main

#include <bits/stdc++.h>
using namespace std;





int main() {
    cin.tie(0)->sync_with_stdio(false);
    long long n,d;
    int q;
    cin >> n >> d;
    vector<int>c(n+5);
    vector<int>ans(n+1,0);
    for (int i = 1; i <= n; i++)
    {
        cin >> c[i];
        ans[i] = ans[i-1] + (c[i] == 0 && c[i-1]==1);

    }

    cin >> q;
    while(q--)
   {
       int l,r;
       cin >> l >> r;
       if(ans[r]-ans[l-1]==0)
       {
         cout << 0 << '\n';
       }
      else if(d==1)
      {
        cout << ans[r]-ans[l-1] << '\n';
      }
      else
      {
        cout << -1 << '\n';
      }
   }

}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 7
• Subtask 3: 0 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36