Submission #966069

#	Time	Username	Problem	Language	Result	Execution time	Memory
966069		North1304	Lasers (NOI19_lasers)	C++14	24 / 100	70 ms	6192 KiB

lasers

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

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    int l,r,ans=0; cin >> l >> r;
    for(int i=1;i<=r;i++) {
        int x; cin >> x;
        if (x==1) {
            int a; cin >> a;
            ans = max(ans, max(0, 2 * a - l));
        }
    }
    cout << ans;
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 22
• Subtask 6: 0 / 13