NKBUS - Bus
Tác giả: khuc_tuan
Ngôn ngữ: C++
#include <iostream>
#include <queue>
using namespace std;
int main() {
int n, m;
priority_queue<int, vector<int>, greater<int> > q;
scanf("%d%d", &n, &m);
int total_time = 0;
for(int i=0;i<n;++i) {
int x, k, t;
scanf("%d%d", &x, &k);
for(int j=0;j<k;++j) {
scanf("%d", &t);
if(t < total_time) t = total_time;
q.push(t - total_time);
}
total_time += x;
}
int res = 0;
for(int i=0;i<m;++i) if(q.size()>0) {
res = q.top();
q.pop();
}
cout << res + total_time << endl;
return 0;
}