#include <bits/stdc++.h>
using namespace std;
#define all(s) s.begin(), s.end()
#define int long long
#define fr first
#define sc second
#define pb push_back
#define mk make_pair
const int N = 2e5 + 7;
const int INF = 1e9 + 7;
int a[N], sf[N], pr[N], m[N];
int n, ans;
main (){
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n;
for (int i = 1; i <= n; i++){
cin >> a[i];
}
for (int i = n - 1; i >= 1; i--){
sf[i] = sf[i + 1] + max(0ll, a[i + 1] - a[i] + 1);
m[i] = max(m[i], a[i + 1] - a[i] + 1);
}
ans = sf[1];
for (int i = 2; i < n; i++){
pr[i] = pr[i - 1] + max(0ll, a[i - 1] - a[i] + 1);
ans = min(ans, max(pr[i], sf[i]));
}
pr[n] = pr[n - 1] + max(0ll, a[n - 1] - a[n] + 1);
ans = min(ans, pr[n]);
cout << ans << endl;
}
Compilation message
Main.cpp:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
17 | main (){
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
1 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
332 KB |
Output is correct |
| 4 |
Correct |
1 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
412 KB |
Output is correct |
| 6 |
Correct |
2 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 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 |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
2 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
1 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
360 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
1 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
332 KB |
Output is correct |
| 4 |
Correct |
1 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
412 KB |
Output is correct |
| 6 |
Correct |
2 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 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 |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
2 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
1 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
360 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
30 ms |
7384 KB |
Output is correct |
| 27 |
Correct |
32 ms |
7216 KB |
Output is correct |
| 28 |
Correct |
30 ms |
7236 KB |
Output is correct |
| 29 |
Correct |
30 ms |
7236 KB |
Output is correct |
| 30 |
Correct |
28 ms |
7260 KB |
Output is correct |
| 31 |
Correct |
30 ms |
7260 KB |
Output is correct |
| 32 |
Correct |
31 ms |
7284 KB |
Output is correct |
| 33 |
Correct |
30 ms |
7280 KB |
Output is correct |
| 34 |
Correct |
33 ms |
7272 KB |
Output is correct |
| 35 |
Correct |
25 ms |
7308 KB |
Output is correct |
| 36 |
Correct |
30 ms |
7316 KB |
Output is correct |
| 37 |
Correct |
26 ms |
7324 KB |
Output is correct |
| 38 |
Correct |
30 ms |
7312 KB |
Output is correct |
| 39 |
Correct |
32 ms |
7276 KB |
Output is correct |
| 40 |
Correct |
33 ms |
7236 KB |
Output is correct |
| 41 |
Correct |
36 ms |
7260 KB |
Output is correct |
| 42 |
Correct |
28 ms |
7232 KB |
Output is correct |
| 43 |
Correct |
37 ms |
7256 KB |
Output is correct |
| 44 |
Correct |
28 ms |
7264 KB |
Output is correct |
| 45 |
Correct |
30 ms |
7212 KB |
Output is correct |
| 46 |
Correct |
37 ms |
7236 KB |
Output is correct |
| 47 |
Correct |
30 ms |
7260 KB |
Output is correct |
| 48 |
Correct |
30 ms |
7244 KB |
Output is correct |
