Submission #742953

#	Time	Username	Problem	Language	Result	Execution time	Memory
742953		vjudge1	Lasers (NOI19_lasers)	C++17	10 / 100	44 ms	3224 KiB

lasers

#include <bits/stdc++.h>
using namespace std;
vector<int> wall[10000];

int main ()
{
    int l, r, amount, a;
    cin >> l >> r;
    for(int i = 0;i < r;++i)
    {
        cin >> amount;
        for(int j = 0;j < amount;++j)
        {
            cin >> a;
            wall[i].push_back(a);
        }
    }
    cout << max(0, (wall[0][0]*2) - l);
}

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