#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int nx=5e5+5;
ll n, a[nx], b[nx], d[nx], res;
priority_queue<ll> pq;
int main()
{
cin.tie(NULL)->sync_with_stdio(false);
cin>>n;
for (int i=1; i<=n; i++) cin>>a[i]>>b[i], d[i]=d[i-1]+(a[i]-b[i]);
for (int i=1; i<n; i++)
{
if (d[i]<0) res-=d[i], d[i]=0;
else if (d[i]>d[n]) res+=d[i]-d[n];
//pq.push(d[i]);
//pq.push(d[i]);
//pq.pop();
}
cout<<res<<'\n';
//while (!pq.empty()) cout<<pq.top()<<' ', pq.pop();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
9164 KB |
Output is correct |
5 |
Correct |
11 ms |
11356 KB |
Output is correct |
6 |
Correct |
32 ms |
14068 KB |
Output is correct |
7 |
Correct |
67 ms |
18908 KB |
Output is correct |
8 |
Correct |
52 ms |
16980 KB |
Output is correct |
9 |
Correct |
51 ms |
16388 KB |
Output is correct |
10 |
Correct |
37 ms |
13936 KB |
Output is correct |
11 |
Correct |
38 ms |
14080 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
9164 KB |
Output is correct |
5 |
Correct |
11 ms |
11356 KB |
Output is correct |
6 |
Correct |
32 ms |
14068 KB |
Output is correct |
7 |
Correct |
67 ms |
18908 KB |
Output is correct |
8 |
Correct |
52 ms |
16980 KB |
Output is correct |
9 |
Correct |
51 ms |
16388 KB |
Output is correct |
10 |
Correct |
37 ms |
13936 KB |
Output is correct |
11 |
Correct |
38 ms |
14080 KB |
Output is correct |
12 |
Incorrect |
21 ms |
12792 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 KB |
Output is correct |
3 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |