#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 2e5;
const ll INF = 1e16;
int N;
ll A[MAXN+10], ans;
set<int> L, R;
set<pll, greater<pll>> S;
pii f(int x)
{
int l, r;
r=*R.lower_bound(x);
l=*(--L.upper_bound(x));
return {l, r};
}
int main()
{
int i, j;
scanf("%d", &N);
for(i=1; i<=N; i++) scanf("%lld", &A[i]);
A[0]=A[N+1]=-INF;
for(i=0; i<=N+1; i++) L.insert(i), R.insert(i);
for(i=0; i<=N+1; i++) S.insert({A[i], i});
for(i=1; i<=(N+1)/2; i++)
{
ans+=S.begin()->first;
printf("%lld\n", ans);
int x=S.begin()->second;
int l=f(x).first, r=f(x).second, pl=f(l-1).first, pr=f(l-1).second, ql=f(r+1).first, qr=f(r+1).second;
L.erase(l), R.erase(r), S.erase({A[l], l});
L.erase(pl), R.erase(pr), S.erase({A[pl], pl});
L.erase(ql), R.erase(qr), S.erase({A[ql], ql});
A[pl]=A[pl]+A[ql]-A[l];
L.insert(pl); R.insert(qr); S.insert({A[pl], pl});
}
}
Compilation message
candies.cpp: In function 'int main()':
candies.cpp:27:12: warning: unused variable 'j' [-Wunused-variable]
int i, j;
^
candies.cpp:29:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &N);
~~~~~^~~~~~~~~~
candies.cpp:30:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for(i=1; i<=N; i++) scanf("%lld", &A[i]);
~~~~~^~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
640 KB |
Output is correct |
| 2 |
Correct |
8 ms |
640 KB |
Output is correct |
| 3 |
Correct |
8 ms |
640 KB |
Output is correct |
| 4 |
Correct |
8 ms |
768 KB |
Output is correct |
| 5 |
Correct |
8 ms |
640 KB |
Output is correct |
| 6 |
Correct |
8 ms |
640 KB |
Output is correct |
| 7 |
Correct |
8 ms |
640 KB |
Output is correct |
| 8 |
Correct |
8 ms |
640 KB |
Output is correct |
| 9 |
Correct |
7 ms |
640 KB |
Output is correct |
| 10 |
Correct |
7 ms |
640 KB |
Output is correct |
| 11 |
Correct |
8 ms |
640 KB |
Output is correct |
| 12 |
Correct |
8 ms |
640 KB |
Output is correct |
| 13 |
Correct |
8 ms |
640 KB |
Output is correct |
| 14 |
Correct |
8 ms |
640 KB |
Output is correct |
| 15 |
Correct |
8 ms |
640 KB |
Output is correct |
| 16 |
Correct |
8 ms |
768 KB |
Output is correct |
| 17 |
Correct |
8 ms |
640 KB |
Output is correct |
| 18 |
Correct |
8 ms |
640 KB |
Output is correct |
| 19 |
Correct |
7 ms |
640 KB |
Output is correct |
| 20 |
Correct |
7 ms |
640 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
640 KB |
Output is correct |
| 2 |
Correct |
8 ms |
640 KB |
Output is correct |
| 3 |
Correct |
8 ms |
640 KB |
Output is correct |
| 4 |
Correct |
8 ms |
768 KB |
Output is correct |
| 5 |
Correct |
8 ms |
640 KB |
Output is correct |
| 6 |
Correct |
8 ms |
640 KB |
Output is correct |
| 7 |
Correct |
8 ms |
640 KB |
Output is correct |
| 8 |
Correct |
8 ms |
640 KB |
Output is correct |
| 9 |
Correct |
7 ms |
640 KB |
Output is correct |
| 10 |
Correct |
7 ms |
640 KB |
Output is correct |
| 11 |
Correct |
8 ms |
640 KB |
Output is correct |
| 12 |
Correct |
8 ms |
640 KB |
Output is correct |
| 13 |
Correct |
8 ms |
640 KB |
Output is correct |
| 14 |
Correct |
8 ms |
640 KB |
Output is correct |
| 15 |
Correct |
8 ms |
640 KB |
Output is correct |
| 16 |
Correct |
8 ms |
768 KB |
Output is correct |
| 17 |
Correct |
8 ms |
640 KB |
Output is correct |
| 18 |
Correct |
8 ms |
640 KB |
Output is correct |
| 19 |
Correct |
7 ms |
640 KB |
Output is correct |
| 20 |
Correct |
7 ms |
640 KB |
Output is correct |
| 21 |
Correct |
901 ms |
36736 KB |
Output is correct |
| 22 |
Correct |
906 ms |
36728 KB |
Output is correct |
| 23 |
Correct |
943 ms |
36696 KB |
Output is correct |
| 24 |
Correct |
450 ms |
36472 KB |
Output is correct |
| 25 |
Correct |
454 ms |
36524 KB |
Output is correct |
| 26 |
Correct |
483 ms |
36440 KB |
Output is correct |
| 27 |
Correct |
470 ms |
36648 KB |
Output is correct |
| 28 |
Correct |
478 ms |
36616 KB |
Output is correct |
| 29 |
Correct |
490 ms |
36600 KB |
Output is correct |
| 30 |
Correct |
491 ms |
36644 KB |
Output is correct |
| 31 |
Correct |
518 ms |
36728 KB |
Output is correct |
| 32 |
Correct |
516 ms |
36600 KB |
Output is correct |
| 33 |
Correct |
656 ms |
36532 KB |
Output is correct |
| 34 |
Correct |
666 ms |
36476 KB |
Output is correct |
| 35 |
Correct |
666 ms |
36588 KB |
Output is correct |
| 36 |
Correct |
938 ms |
36624 KB |
Output is correct |
| 37 |
Correct |
899 ms |
36740 KB |
Output is correct |
| 38 |
Correct |
941 ms |
36728 KB |
Output is correct |
| 39 |
Correct |
488 ms |
36600 KB |
Output is correct |
| 40 |
Correct |
438 ms |
36600 KB |
Output is correct |
| 41 |
Correct |
457 ms |
36600 KB |
Output is correct |
| 42 |
Correct |
469 ms |
36576 KB |
Output is correct |
| 43 |
Correct |
464 ms |
36816 KB |
Output is correct |
| 44 |
Correct |
490 ms |
36856 KB |
Output is correct |
| 45 |
Correct |
506 ms |
36728 KB |
Output is correct |
| 46 |
Correct |
518 ms |
36728 KB |
Output is correct |
| 47 |
Correct |
486 ms |
36728 KB |
Output is correct |
| 48 |
Correct |
682 ms |
36472 KB |
Output is correct |
| 49 |
Correct |
718 ms |
36472 KB |
Output is correct |
| 50 |
Correct |
713 ms |
36468 KB |
Output is correct |
