#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 5e5 + 5;
int n, a[N], b[N], c[N];
signed main() {
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> n;
for (int i = 1; i <= n; ++i) {
cin >> a[i] >> b[i];
c[i] = c[i - 1] + a[i] - b[i];
}
int res = 0;
for (int i = 1; i <= n; ++i) {
if (c[i] < 0) {
res += -c[i];
c[i] = 0;
}
if (c[i] > c[n]) {
res += c[i] - c[n];
c[i] = c[n];
}
}
priority_queue <int> pq;
while (!pq.empty()) pq.pop();
for (int i = 1; i <= n; ++i) {
pq.push(c[i]);
if (c[i] < pq.top()) {
res += pq.top() - c[i];
pq.pop();
pq.push(c[i]);
}
}
cout << res << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
3 |
Correct |
1 ms |
492 KB |
Output is correct |
4 |
Correct |
9 ms |
2544 KB |
Output is correct |
5 |
Correct |
21 ms |
4588 KB |
Output is correct |
6 |
Correct |
54 ms |
11752 KB |
Output is correct |
7 |
Correct |
117 ms |
23312 KB |
Output is correct |
8 |
Correct |
92 ms |
21220 KB |
Output is correct |
9 |
Correct |
90 ms |
20648 KB |
Output is correct |
10 |
Correct |
73 ms |
18276 KB |
Output is correct |
11 |
Correct |
73 ms |
18276 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
3 |
Correct |
1 ms |
492 KB |
Output is correct |
4 |
Correct |
9 ms |
2544 KB |
Output is correct |
5 |
Correct |
21 ms |
4588 KB |
Output is correct |
6 |
Correct |
54 ms |
11752 KB |
Output is correct |
7 |
Correct |
117 ms |
23312 KB |
Output is correct |
8 |
Correct |
92 ms |
21220 KB |
Output is correct |
9 |
Correct |
90 ms |
20648 KB |
Output is correct |
10 |
Correct |
73 ms |
18276 KB |
Output is correct |
11 |
Correct |
73 ms |
18276 KB |
Output is correct |
12 |
Correct |
28 ms |
6124 KB |
Output is correct |
13 |
Correct |
71 ms |
15716 KB |
Output is correct |
14 |
Correct |
117 ms |
23140 KB |
Output is correct |
15 |
Correct |
92 ms |
21220 KB |
Output is correct |
16 |
Correct |
101 ms |
20580 KB |
Output is correct |
17 |
Correct |
90 ms |
18276 KB |
Output is correct |
18 |
Correct |
1 ms |
524 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
492 KB |
Output is correct |
6 |
Correct |
1 ms |
492 KB |
Output is correct |
7 |
Correct |
1 ms |
492 KB |
Output is correct |
8 |
Correct |
1 ms |
492 KB |
Output is correct |
9 |
Correct |
1 ms |
492 KB |
Output is correct |
10 |
Correct |
1 ms |
524 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
3 |
Correct |
1 ms |
492 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
492 KB |
Output is correct |
7 |
Correct |
1 ms |
492 KB |
Output is correct |
8 |
Correct |
1 ms |
492 KB |
Output is correct |
9 |
Correct |
1 ms |
492 KB |
Output is correct |
10 |
Correct |
1 ms |
492 KB |
Output is correct |
11 |
Correct |
1 ms |
492 KB |
Output is correct |
12 |
Correct |
2 ms |
492 KB |
Output is correct |
13 |
Correct |
2 ms |
492 KB |
Output is correct |
14 |
Correct |
1 ms |
492 KB |
Output is correct |
15 |
Correct |
1 ms |
492 KB |
Output is correct |
16 |
Correct |
1 ms |
492 KB |
Output is correct |
17 |
Correct |
2 ms |
492 KB |
Output is correct |
18 |
Correct |
1 ms |
524 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
3 |
Correct |
1 ms |
492 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
492 KB |
Output is correct |
7 |
Correct |
1 ms |
492 KB |
Output is correct |
8 |
Correct |
1 ms |
492 KB |
Output is correct |
9 |
Correct |
1 ms |
492 KB |
Output is correct |
10 |
Correct |
1 ms |
492 KB |
Output is correct |
11 |
Correct |
9 ms |
2544 KB |
Output is correct |
12 |
Correct |
21 ms |
4588 KB |
Output is correct |
13 |
Correct |
54 ms |
11752 KB |
Output is correct |
14 |
Correct |
117 ms |
23312 KB |
Output is correct |
15 |
Correct |
92 ms |
21220 KB |
Output is correct |
16 |
Correct |
90 ms |
20648 KB |
Output is correct |
17 |
Correct |
73 ms |
18276 KB |
Output is correct |
18 |
Correct |
73 ms |
18276 KB |
Output is correct |
19 |
Correct |
28 ms |
6124 KB |
Output is correct |
20 |
Correct |
71 ms |
15716 KB |
Output is correct |
21 |
Correct |
117 ms |
23140 KB |
Output is correct |
22 |
Correct |
92 ms |
21220 KB |
Output is correct |
23 |
Correct |
101 ms |
20580 KB |
Output is correct |
24 |
Correct |
90 ms |
18276 KB |
Output is correct |
25 |
Correct |
1 ms |
492 KB |
Output is correct |
26 |
Correct |
2 ms |
492 KB |
Output is correct |
27 |
Correct |
2 ms |
492 KB |
Output is correct |
28 |
Correct |
1 ms |
492 KB |
Output is correct |
29 |
Correct |
1 ms |
492 KB |
Output is correct |
30 |
Correct |
1 ms |
492 KB |
Output is correct |
31 |
Correct |
2 ms |
492 KB |
Output is correct |
32 |
Correct |
43 ms |
6380 KB |
Output is correct |
33 |
Correct |
119 ms |
15716 KB |
Output is correct |
34 |
Correct |
185 ms |
23268 KB |
Output is correct |
35 |
Correct |
160 ms |
20824 KB |
Output is correct |
36 |
Correct |
109 ms |
21348 KB |
Output is correct |
37 |
Correct |
157 ms |
23160 KB |
Output is correct |
38 |
Correct |
101 ms |
19388 KB |
Output is correct |
39 |
Correct |
110 ms |
18148 KB |
Output is correct |
40 |
Correct |
97 ms |
18276 KB |
Output is correct |
41 |
Correct |
97 ms |
18404 KB |
Output is correct |
42 |
Correct |
102 ms |
18276 KB |
Output is correct |
43 |
Correct |
102 ms |
18276 KB |
Output is correct |
44 |
Correct |
123 ms |
23140 KB |
Output is correct |
45 |
Correct |
89 ms |
18660 KB |
Output is correct |
46 |
Correct |
105 ms |
16484 KB |
Output is correct |
47 |
Correct |
1 ms |
524 KB |
Output is correct |