#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 2e5+1;
const ll INF = 1e17;
int n;
ll a[N], pre[N], nxt[N];
priority_queue<pair<ll, int> > pq;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin >> n;
for(int i = 1; i <= n; i++) {
cin >> a[i];
if(i > 1) pre[i] = i-1;
if(i < n) nxt[i] = i+1;
pq.emplace(a[i], i);
}
ll ans = 0;
for(int z = 1; z <= n+1 >> 1; z++) {
while(pq.top().first != a[pq.top().second]) pq.pop();
int i = pq.top().second;
ans += a[i];
cout << ans << '\n';
int l = pre[i], r = nxt[i];
nxt[i] = nxt[r];
pre[i] = pre[l];
pre[nxt[r]] = i;
nxt[pre[l]] = i;
if(l && r) a[i] = max(a[l] + a[r] - a[i], -INF);
else a[i] = -INF;
a[l] = a[r] = -INF;
pq.emplace(a[i], i);
}
}
Compilation message
candies.cpp: In function 'int main()':
candies.cpp:22:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(int z = 1; z <= n+1 >> 1; z++) {
~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
504 KB |
Output is correct |
| 2 |
Correct |
3 ms |
612 KB |
Output is correct |
| 3 |
Correct |
3 ms |
708 KB |
Output is correct |
| 4 |
Correct |
3 ms |
708 KB |
Output is correct |
| 5 |
Correct |
3 ms |
708 KB |
Output is correct |
| 6 |
Correct |
3 ms |
924 KB |
Output is correct |
| 7 |
Correct |
3 ms |
924 KB |
Output is correct |
| 8 |
Correct |
3 ms |
924 KB |
Output is correct |
| 9 |
Correct |
4 ms |
988 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1008 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1028 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1048 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1108 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1128 KB |
Output is correct |
| 16 |
Correct |
3 ms |
1128 KB |
Output is correct |
| 17 |
Correct |
3 ms |
1200 KB |
Output is correct |
| 18 |
Correct |
3 ms |
1224 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1224 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1228 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
504 KB |
Output is correct |
| 2 |
Correct |
3 ms |
612 KB |
Output is correct |
| 3 |
Correct |
3 ms |
708 KB |
Output is correct |
| 4 |
Correct |
3 ms |
708 KB |
Output is correct |
| 5 |
Correct |
3 ms |
708 KB |
Output is correct |
| 6 |
Correct |
3 ms |
924 KB |
Output is correct |
| 7 |
Correct |
3 ms |
924 KB |
Output is correct |
| 8 |
Correct |
3 ms |
924 KB |
Output is correct |
| 9 |
Correct |
4 ms |
988 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1008 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1028 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1048 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1108 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1128 KB |
Output is correct |
| 16 |
Correct |
3 ms |
1128 KB |
Output is correct |
| 17 |
Correct |
3 ms |
1200 KB |
Output is correct |
| 18 |
Correct |
3 ms |
1224 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1224 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1228 KB |
Output is correct |
| 21 |
Correct |
148 ms |
12448 KB |
Output is correct |
| 22 |
Correct |
142 ms |
14420 KB |
Output is correct |
| 23 |
Correct |
147 ms |
16360 KB |
Output is correct |
| 24 |
Correct |
102 ms |
18176 KB |
Output is correct |
| 25 |
Correct |
106 ms |
19848 KB |
Output is correct |
| 26 |
Correct |
110 ms |
21776 KB |
Output is correct |
| 27 |
Correct |
156 ms |
23668 KB |
Output is correct |
| 28 |
Correct |
190 ms |
25552 KB |
Output is correct |
| 29 |
Correct |
123 ms |
27584 KB |
Output is correct |
| 30 |
Correct |
133 ms |
29576 KB |
Output is correct |
| 31 |
Correct |
122 ms |
31484 KB |
Output is correct |
| 32 |
Correct |
139 ms |
33656 KB |
Output is correct |
| 33 |
Correct |
121 ms |
35308 KB |
Output is correct |
| 34 |
Correct |
121 ms |
36916 KB |
Output is correct |
| 35 |
Correct |
123 ms |
38708 KB |
Output is correct |
| 36 |
Correct |
151 ms |
40564 KB |
Output is correct |
| 37 |
Correct |
128 ms |
42608 KB |
Output is correct |
| 38 |
Correct |
132 ms |
44536 KB |
Output is correct |
| 39 |
Correct |
103 ms |
46384 KB |
Output is correct |
| 40 |
Correct |
102 ms |
48140 KB |
Output is correct |
| 41 |
Correct |
104 ms |
49808 KB |
Output is correct |
| 42 |
Correct |
119 ms |
51980 KB |
Output is correct |
| 43 |
Correct |
114 ms |
53920 KB |
Output is correct |
| 44 |
Correct |
115 ms |
55760 KB |
Output is correct |
| 45 |
Correct |
117 ms |
57732 KB |
Output is correct |
| 46 |
Correct |
115 ms |
59644 KB |
Output is correct |
| 47 |
Correct |
127 ms |
61644 KB |
Output is correct |
| 48 |
Correct |
123 ms |
63340 KB |
Output is correct |
| 49 |
Correct |
123 ms |
65060 KB |
Output is correct |
| 50 |
Correct |
133 ms |
66832 KB |
Output is correct |
