oj.uz

Submission #211466

# Submission time Handle Problem Language Result Execution time Memory
211466 2020-03-20T12:27:58 Z jzh Telefoni (COCI17_telefoni) C++14
80 / 80
 21 ms 2688 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll n,k,i,sum=0,x,ans=0;
    cin>>n>>k;
    ll arr[n];
    for (i=0;i<n;i++){
        cin>>arr[i];
        x=arr[i];
        sum+=x;
        if (i>=k){
            sum-=arr[i-k];
        }
        if (i>=k-1){
            if (sum==0){
                ans++;
                arr[i]=1;
                sum++;
            }
        }
    }
    cout<<ans<<'\n';
 
}

Subtask #1
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 20 ms 2688 KB Output is correct
9 Correct 21 ms 2688 KB Output is correct
10 Correct 19 ms 2688 KB Output is correct