Submission #345044

#	Time	Username	Problem	Language	Result	Execution time	Memory
345044		nishuz	Lightning Rod (NOI18_lightningrod)	C++14	4 / 100	2004 ms	174564 KiB

Main

#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, ans = 0;
    cin >> n;
    vector <pair <int, int>> a(n);
    for (int i = 0; i < n; ++i) cin >> a[i].first >> a[i].second;
    for (int i = 0; i < n; ++i)
    {
        if (a[i].second) ++ans;
        else ans += ((!i || !a[i-1].second) && (i == n-1 || !a[i+1].second));
    }
    cout << ans << '\n';
}

• 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