#include <iostream>
#include <queue>
using namespace std;
const long long MAXN = 5e5+5;
long long ans;
long long pref[MAXN];
long long c[MAXN];
long long n;
priority_queue<long long> pq;
int main(){
cin>>n;
for(long long i=1;i<=n;i++){
long long a,b;
cin>>a>>b;
c[i] = a-b;
pref[i] = pref[i-1]+c[i];
}
for(long long i=1;i<=n;i++){
if(pref[i]<0){
ans+=abs(pref[i]);
pref[i] = 0;
}
if(pref[i]>pref[n]){
ans+=pref[i]-pref[n];
pref[i]=pref[n];
}
}
for(long long i=1;i<=n;i++){
if(!pq.empty() && pq.top()>pref[i]){
ans+=pq.top()-pref[i];
pq.pop();
pq.push(pref[i]);
}
pq.push(pref[i]);
}
cout<<ans<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
4 ms |
380 KB |
Output is correct |
3 |
Correct |
5 ms |
504 KB |
Output is correct |
4 |
Correct |
40 ms |
2136 KB |
Output is correct |
5 |
Correct |
72 ms |
3664 KB |
Output is correct |
6 |
Correct |
292 ms |
9832 KB |
Output is correct |
7 |
Correct |
567 ms |
19256 KB |
Output is correct |
8 |
Correct |
455 ms |
17256 KB |
Output is correct |
9 |
Correct |
415 ms |
16764 KB |
Output is correct |
10 |
Correct |
274 ms |
14404 KB |
Output is correct |
11 |
Correct |
276 ms |
14312 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
4 ms |
380 KB |
Output is correct |
3 |
Correct |
5 ms |
504 KB |
Output is correct |
4 |
Correct |
40 ms |
2136 KB |
Output is correct |
5 |
Correct |
72 ms |
3664 KB |
Output is correct |
6 |
Correct |
292 ms |
9832 KB |
Output is correct |
7 |
Correct |
567 ms |
19256 KB |
Output is correct |
8 |
Correct |
455 ms |
17256 KB |
Output is correct |
9 |
Correct |
415 ms |
16764 KB |
Output is correct |
10 |
Correct |
274 ms |
14404 KB |
Output is correct |
11 |
Correct |
276 ms |
14312 KB |
Output is correct |
12 |
Correct |
145 ms |
5228 KB |
Output is correct |
13 |
Correct |
362 ms |
13376 KB |
Output is correct |
14 |
Correct |
573 ms |
19172 KB |
Output is correct |
15 |
Correct |
472 ms |
17240 KB |
Output is correct |
16 |
Correct |
424 ms |
16848 KB |
Output is correct |
17 |
Correct |
282 ms |
14308 KB |
Output is correct |
18 |
Correct |
4 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
4 ms |
380 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
376 KB |
Output is correct |
5 |
Correct |
3 ms |
376 KB |
Output is correct |
6 |
Correct |
4 ms |
504 KB |
Output is correct |
7 |
Correct |
4 ms |
504 KB |
Output is correct |
8 |
Correct |
4 ms |
504 KB |
Output is correct |
9 |
Correct |
4 ms |
504 KB |
Output is correct |
10 |
Correct |
4 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
4 ms |
380 KB |
Output is correct |
3 |
Correct |
5 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
3 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
376 KB |
Output is correct |
7 |
Correct |
4 ms |
504 KB |
Output is correct |
8 |
Correct |
4 ms |
504 KB |
Output is correct |
9 |
Correct |
4 ms |
504 KB |
Output is correct |
10 |
Correct |
4 ms |
504 KB |
Output is correct |
11 |
Correct |
4 ms |
376 KB |
Output is correct |
12 |
Correct |
6 ms |
504 KB |
Output is correct |
13 |
Correct |
6 ms |
504 KB |
Output is correct |
14 |
Correct |
5 ms |
504 KB |
Output is correct |
15 |
Correct |
5 ms |
504 KB |
Output is correct |
16 |
Correct |
4 ms |
504 KB |
Output is correct |
17 |
Correct |
6 ms |
504 KB |
Output is correct |
18 |
Correct |
4 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
4 ms |
380 KB |
Output is correct |
3 |
Correct |
5 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
3 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
376 KB |
Output is correct |
7 |
Correct |
4 ms |
504 KB |
Output is correct |
8 |
Correct |
4 ms |
504 KB |
Output is correct |
9 |
Correct |
4 ms |
504 KB |
Output is correct |
10 |
Correct |
4 ms |
504 KB |
Output is correct |
11 |
Correct |
40 ms |
2136 KB |
Output is correct |
12 |
Correct |
72 ms |
3664 KB |
Output is correct |
13 |
Correct |
292 ms |
9832 KB |
Output is correct |
14 |
Correct |
567 ms |
19256 KB |
Output is correct |
15 |
Correct |
455 ms |
17256 KB |
Output is correct |
16 |
Correct |
415 ms |
16764 KB |
Output is correct |
17 |
Correct |
274 ms |
14404 KB |
Output is correct |
18 |
Correct |
276 ms |
14312 KB |
Output is correct |
19 |
Correct |
145 ms |
5228 KB |
Output is correct |
20 |
Correct |
362 ms |
13376 KB |
Output is correct |
21 |
Correct |
573 ms |
19172 KB |
Output is correct |
22 |
Correct |
472 ms |
17240 KB |
Output is correct |
23 |
Correct |
424 ms |
16848 KB |
Output is correct |
24 |
Correct |
282 ms |
14308 KB |
Output is correct |
25 |
Correct |
4 ms |
376 KB |
Output is correct |
26 |
Correct |
6 ms |
504 KB |
Output is correct |
27 |
Correct |
6 ms |
504 KB |
Output is correct |
28 |
Correct |
5 ms |
504 KB |
Output is correct |
29 |
Correct |
5 ms |
504 KB |
Output is correct |
30 |
Correct |
4 ms |
504 KB |
Output is correct |
31 |
Correct |
6 ms |
504 KB |
Output is correct |
32 |
Correct |
157 ms |
5176 KB |
Output is correct |
33 |
Correct |
381 ms |
13356 KB |
Output is correct |
34 |
Correct |
643 ms |
19244 KB |
Output is correct |
35 |
Correct |
495 ms |
16748 KB |
Output is correct |
36 |
Correct |
476 ms |
17296 KB |
Output is correct |
37 |
Correct |
727 ms |
19304 KB |
Output is correct |
38 |
Correct |
354 ms |
15332 KB |
Output is correct |
39 |
Correct |
368 ms |
14536 KB |
Output is correct |
40 |
Correct |
301 ms |
14388 KB |
Output is correct |
41 |
Correct |
303 ms |
14308 KB |
Output is correct |
42 |
Correct |
309 ms |
14440 KB |
Output is correct |
43 |
Correct |
308 ms |
14324 KB |
Output is correct |
44 |
Correct |
586 ms |
19400 KB |
Output is correct |
45 |
Correct |
301 ms |
14820 KB |
Output is correct |
46 |
Correct |
340 ms |
13404 KB |
Output is correct |
47 |
Correct |
4 ms |
376 KB |
Output is correct |