#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 |
0 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 |
1356 KB |
Output is correct |
5 |
Correct |
36 ms |
2140 KB |
Output is correct |
6 |
Correct |
116 ms |
4460 KB |
Output is correct |
7 |
Correct |
171 ms |
8440 KB |
Output is correct |
8 |
Correct |
198 ms |
8436 KB |
Output is correct |
9 |
Correct |
170 ms |
12584 KB |
Output is correct |
10 |
Correct |
144 ms |
10404 KB |
Output is correct |
11 |
Correct |
151 ms |
10420 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
1356 KB |
Output is correct |
5 |
Correct |
36 ms |
2140 KB |
Output is correct |
6 |
Correct |
116 ms |
4460 KB |
Output is correct |
7 |
Correct |
171 ms |
8440 KB |
Output is correct |
8 |
Correct |
198 ms |
8436 KB |
Output is correct |
9 |
Correct |
170 ms |
12584 KB |
Output is correct |
10 |
Correct |
144 ms |
10404 KB |
Output is correct |
11 |
Correct |
151 ms |
10420 KB |
Output is correct |
12 |
Correct |
53 ms |
4052 KB |
Output is correct |
13 |
Correct |
142 ms |
10872 KB |
Output is correct |
14 |
Correct |
175 ms |
15208 KB |
Output is correct |
15 |
Correct |
202 ms |
13312 KB |
Output is correct |
16 |
Correct |
245 ms |
12608 KB |
Output is correct |
17 |
Correct |
140 ms |
10320 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
2 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
2 ms |
408 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
2 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
2 ms |
408 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 |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
2 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
2 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
2 ms |
408 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
17 ms |
1356 KB |
Output is correct |
12 |
Correct |
36 ms |
2140 KB |
Output is correct |
13 |
Correct |
116 ms |
4460 KB |
Output is correct |
14 |
Correct |
171 ms |
8440 KB |
Output is correct |
15 |
Correct |
198 ms |
8436 KB |
Output is correct |
16 |
Correct |
170 ms |
12584 KB |
Output is correct |
17 |
Correct |
144 ms |
10404 KB |
Output is correct |
18 |
Correct |
151 ms |
10420 KB |
Output is correct |
19 |
Correct |
53 ms |
4052 KB |
Output is correct |
20 |
Correct |
142 ms |
10872 KB |
Output is correct |
21 |
Correct |
175 ms |
15208 KB |
Output is correct |
22 |
Correct |
202 ms |
13312 KB |
Output is correct |
23 |
Correct |
245 ms |
12608 KB |
Output is correct |
24 |
Correct |
140 ms |
10320 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 |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
2 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
332 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
58 ms |
4056 KB |
Output is correct |
34 |
Correct |
140 ms |
10940 KB |
Output is correct |
35 |
Correct |
244 ms |
15096 KB |
Output is correct |
36 |
Correct |
230 ms |
12700 KB |
Output is correct |
37 |
Correct |
253 ms |
13316 KB |
Output is correct |
38 |
Correct |
234 ms |
15220 KB |
Output is correct |
39 |
Correct |
166 ms |
11300 KB |
Output is correct |
40 |
Correct |
200 ms |
10888 KB |
Output is correct |
41 |
Correct |
147 ms |
10424 KB |
Output is correct |
42 |
Correct |
138 ms |
10336 KB |
Output is correct |
43 |
Correct |
143 ms |
10376 KB |
Output is correct |
44 |
Correct |
148 ms |
10372 KB |
Output is correct |
45 |
Correct |
232 ms |
15104 KB |
Output is correct |
46 |
Correct |
170 ms |
10628 KB |
Output is correct |
47 |
Correct |
158 ms |
10188 KB |
Output is correct |