Submission #1309497

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309497		zxzuam	Lightning Rod (NOI18_lightningrod)	C++20	4 / 100	921 ms	452 KiB

Main

#include <bits/stdc++.h>
//#define int long long
using namespace std;
constexpr int maxn = 1e5 + 9;
void solve(){
    int n;
    cin >> n;
    int cnt = 0;
    for(int i = 1; i <= n; i++) {
        int x;
        cin >> x;
        int y;
        cin >> y;
        if(y) {
            cnt++;
        }
    }
    cout << cnt;
}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int tt = 1;
    //cin >> tt;
    while(tt--) {
        solve();
    }
}

• Subtask 1: 4 / 4
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 21
• Subtask 5: 0 / 26
• Subtask 6: 0 / 10
• Subtask 7: 0 / 20