#include <bits/stdc++.h>
using namespace std;
const int maxn = 5e5 + 10;
long long pre[maxn];
int a[maxn], b[maxn];
int main() {
int n;
cin >> n;
for(int i = 1; i <= n; i++) {
cin >> a[i] >> b[i];
pre[i] = pre[i - 1] + a[i] - b[i];
}
while(pre[n] > 0) {
int cnt = 0;
int best = 0, id = n;
for(int i = n; i >= 1; i--) {
if(pre[i] > 0) ++cnt;
else --cnt;
if(best < cnt) {
best = cnt;
id = i;
}
}
long long minVal = pre[n];
for(int i = id; i <= n; i++) {
if(pre[i] > 0) minVal = min(minVal, pre[i]);
}
for(int i = id; i <= n; i++) {
pre[i] -= minVal;
}
}
long long ans = 0;
for(int i = 1; i <= n; i++) ans += abs(pre[i]);
cout << ans << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
41 ms |
1432 KB |
Output is correct |
5 |
Correct |
76 ms |
2608 KB |
Output is correct |
6 |
Correct |
312 ms |
7672 KB |
Output is correct |
7 |
Correct |
626 ms |
14968 KB |
Output is correct |
8 |
Correct |
501 ms |
13048 KB |
Output is correct |
9 |
Correct |
476 ms |
12408 KB |
Output is correct |
10 |
Correct |
285 ms |
10104 KB |
Output is correct |
11 |
Correct |
277 ms |
10232 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
41 ms |
1432 KB |
Output is correct |
5 |
Correct |
76 ms |
2608 KB |
Output is correct |
6 |
Correct |
312 ms |
7672 KB |
Output is correct |
7 |
Correct |
626 ms |
14968 KB |
Output is correct |
8 |
Correct |
501 ms |
13048 KB |
Output is correct |
9 |
Correct |
476 ms |
12408 KB |
Output is correct |
10 |
Correct |
285 ms |
10104 KB |
Output is correct |
11 |
Correct |
277 ms |
10232 KB |
Output is correct |
12 |
Correct |
157 ms |
3960 KB |
Output is correct |
13 |
Correct |
378 ms |
9084 KB |
Output is correct |
14 |
Correct |
631 ms |
15096 KB |
Output is correct |
15 |
Correct |
502 ms |
13068 KB |
Output is correct |
16 |
Correct |
455 ms |
12408 KB |
Output is correct |
17 |
Correct |
276 ms |
10088 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
0 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
3 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
452 KB |
Output is correct |
7 |
Correct |
3 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
3 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
3 ms |
384 KB |
Output is correct |
7 |
Correct |
12 ms |
452 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
384 KB |
Output is correct |
11 |
Correct |
7 ms |
512 KB |
Output is correct |
12 |
Correct |
14 ms |
384 KB |
Output is correct |
13 |
Correct |
15 ms |
384 KB |
Output is correct |
14 |
Correct |
17 ms |
384 KB |
Output is correct |
15 |
Correct |
9 ms |
384 KB |
Output is correct |
16 |
Correct |
9 ms |
384 KB |
Output is correct |
17 |
Correct |
6 ms |
384 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
3 ms |
384 KB |
Output is correct |
7 |
Correct |
12 ms |
452 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
384 KB |
Output is correct |
11 |
Correct |
41 ms |
1432 KB |
Output is correct |
12 |
Correct |
76 ms |
2608 KB |
Output is correct |
13 |
Correct |
312 ms |
7672 KB |
Output is correct |
14 |
Correct |
626 ms |
14968 KB |
Output is correct |
15 |
Correct |
501 ms |
13048 KB |
Output is correct |
16 |
Correct |
476 ms |
12408 KB |
Output is correct |
17 |
Correct |
285 ms |
10104 KB |
Output is correct |
18 |
Correct |
277 ms |
10232 KB |
Output is correct |
19 |
Correct |
157 ms |
3960 KB |
Output is correct |
20 |
Correct |
378 ms |
9084 KB |
Output is correct |
21 |
Correct |
631 ms |
15096 KB |
Output is correct |
22 |
Correct |
502 ms |
13068 KB |
Output is correct |
23 |
Correct |
455 ms |
12408 KB |
Output is correct |
24 |
Correct |
276 ms |
10088 KB |
Output is correct |
25 |
Correct |
7 ms |
512 KB |
Output is correct |
26 |
Correct |
14 ms |
384 KB |
Output is correct |
27 |
Correct |
15 ms |
384 KB |
Output is correct |
28 |
Correct |
17 ms |
384 KB |
Output is correct |
29 |
Correct |
9 ms |
384 KB |
Output is correct |
30 |
Correct |
9 ms |
384 KB |
Output is correct |
31 |
Correct |
6 ms |
384 KB |
Output is correct |
32 |
Execution timed out |
1089 ms |
3960 KB |
Time limit exceeded |
33 |
Halted |
0 ms |
0 KB |
- |