#include <bits/stdc++.h>
using namespace std;
const int Nmax = 5e5 + 10;
int n;
long long dif[Nmax], ans;
priority_queue <long long> opt;
int main() {
ios :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n;
for (int i = 1; i <= n; ++i) {
int a, b;
cin >> a >> b;
dif[i] = dif[i - 1] + a - b;
}
for (int i = 1; i <= n; ++i) {
if (dif[i] < 0) ans -= dif[i], dif[i] = 0;
opt.push(dif[i]), opt.push(dif[i]);
opt.pop();
ans += dif[i];
}
while (opt.size()) ans -= min(dif[n], opt.top()), opt.pop();
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
17 ms |
1624 KB |
Output is correct |
5 |
Correct |
36 ms |
2920 KB |
Output is correct |
6 |
Correct |
113 ms |
7548 KB |
Output is correct |
7 |
Correct |
171 ms |
11592 KB |
Output is correct |
8 |
Correct |
202 ms |
11592 KB |
Output is correct |
9 |
Correct |
168 ms |
9020 KB |
Output is correct |
10 |
Correct |
140 ms |
8884 KB |
Output is correct |
11 |
Correct |
143 ms |
9012 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
17 ms |
1624 KB |
Output is correct |
5 |
Correct |
36 ms |
2920 KB |
Output is correct |
6 |
Correct |
113 ms |
7548 KB |
Output is correct |
7 |
Correct |
171 ms |
11592 KB |
Output is correct |
8 |
Correct |
202 ms |
11592 KB |
Output is correct |
9 |
Correct |
168 ms |
9020 KB |
Output is correct |
10 |
Correct |
140 ms |
8884 KB |
Output is correct |
11 |
Correct |
143 ms |
9012 KB |
Output is correct |
12 |
Correct |
54 ms |
2984 KB |
Output is correct |
13 |
Correct |
136 ms |
7356 KB |
Output is correct |
14 |
Correct |
181 ms |
8892 KB |
Output is correct |
15 |
Correct |
205 ms |
8888 KB |
Output is correct |
16 |
Correct |
214 ms |
8888 KB |
Output is correct |
17 |
Correct |
144 ms |
8908 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
328 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
2 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
328 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
2 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
2 ms |
332 KB |
Output is correct |
14 |
Correct |
2 ms |
332 KB |
Output is correct |
15 |
Correct |
2 ms |
332 KB |
Output is correct |
16 |
Correct |
2 ms |
332 KB |
Output is correct |
17 |
Correct |
2 ms |
332 KB |
Output is correct |
18 |
Correct |
2 ms |
336 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
328 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
2 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
17 ms |
1624 KB |
Output is correct |
12 |
Correct |
36 ms |
2920 KB |
Output is correct |
13 |
Correct |
113 ms |
7548 KB |
Output is correct |
14 |
Correct |
171 ms |
11592 KB |
Output is correct |
15 |
Correct |
202 ms |
11592 KB |
Output is correct |
16 |
Correct |
168 ms |
9020 KB |
Output is correct |
17 |
Correct |
140 ms |
8884 KB |
Output is correct |
18 |
Correct |
143 ms |
9012 KB |
Output is correct |
19 |
Correct |
54 ms |
2984 KB |
Output is correct |
20 |
Correct |
136 ms |
7356 KB |
Output is correct |
21 |
Correct |
181 ms |
8892 KB |
Output is correct |
22 |
Correct |
205 ms |
8888 KB |
Output is correct |
23 |
Correct |
214 ms |
8888 KB |
Output is correct |
24 |
Correct |
144 ms |
8908 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
2 ms |
332 KB |
Output is correct |
27 |
Correct |
2 ms |
332 KB |
Output is correct |
28 |
Correct |
2 ms |
332 KB |
Output is correct |
29 |
Correct |
2 ms |
332 KB |
Output is correct |
30 |
Correct |
2 ms |
332 KB |
Output is correct |
31 |
Correct |
2 ms |
336 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
55 ms |
2900 KB |
Output is correct |
34 |
Correct |
136 ms |
7392 KB |
Output is correct |
35 |
Correct |
244 ms |
8864 KB |
Output is correct |
36 |
Correct |
233 ms |
8924 KB |
Output is correct |
37 |
Correct |
197 ms |
8972 KB |
Output is correct |
38 |
Correct |
227 ms |
8972 KB |
Output is correct |
39 |
Correct |
159 ms |
9020 KB |
Output is correct |
40 |
Correct |
176 ms |
8576 KB |
Output is correct |
41 |
Correct |
145 ms |
8940 KB |
Output is correct |
42 |
Correct |
138 ms |
8900 KB |
Output is correct |
43 |
Correct |
140 ms |
8988 KB |
Output is correct |
44 |
Correct |
143 ms |
8992 KB |
Output is correct |
45 |
Correct |
224 ms |
8904 KB |
Output is correct |
46 |
Correct |
174 ms |
8892 KB |
Output is correct |
47 |
Correct |
153 ms |
8056 KB |
Output is correct |