#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int N = 200005;
const ll MOD = 1000000007;
const ll INF = 0x3f3f3f3f3f3f3f3f;
ll a[N], d[N];
ll l[N], r[N];
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n;
cin>>n;
for(int i = 1; i <= n; ++i)
cin>>a[i];
for(int i = 1; i < n; ++i)
d[i] = a[i + 1] - a[i];
ll t = 0;
for(int i = 1; i <= n; ++i){
l[i] += t;
t += max(0LL, 1 - d[i]);
}
t = 0;
for(int i = n; i >= 1; --i){
r[i] += t;
t += max(0LL, d[i - 1] + 1);
}
ll ans = 1'000'000'000'000'000'000;
for(int i = 1; i <= n; ++i)
ans = min(ans, max(l[i], r[i]));
cout<<ans;
}
| # |
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 |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 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 |
344 KB |
Output is correct |
| 16 |
Correct |
1 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 |
332 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 |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 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 |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 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 |
344 KB |
Output is correct |
| 16 |
Correct |
1 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 |
332 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 |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
28 ms |
8500 KB |
Output is correct |
| 27 |
Correct |
27 ms |
8504 KB |
Output is correct |
| 28 |
Correct |
27 ms |
8452 KB |
Output is correct |
| 29 |
Correct |
27 ms |
8464 KB |
Output is correct |
| 30 |
Correct |
27 ms |
7756 KB |
Output is correct |
| 31 |
Correct |
27 ms |
8544 KB |
Output is correct |
| 32 |
Correct |
26 ms |
8536 KB |
Output is correct |
| 33 |
Correct |
26 ms |
8420 KB |
Output is correct |
| 34 |
Correct |
26 ms |
8520 KB |
Output is correct |
| 35 |
Correct |
23 ms |
7620 KB |
Output is correct |
| 36 |
Correct |
22 ms |
7728 KB |
Output is correct |
| 37 |
Correct |
22 ms |
7780 KB |
Output is correct |
| 38 |
Correct |
27 ms |
8420 KB |
Output is correct |
| 39 |
Correct |
26 ms |
8500 KB |
Output is correct |
| 40 |
Correct |
27 ms |
8516 KB |
Output is correct |
| 41 |
Correct |
26 ms |
8404 KB |
Output is correct |
| 42 |
Correct |
25 ms |
8376 KB |
Output is correct |
| 43 |
Correct |
26 ms |
8436 KB |
Output is correct |
| 44 |
Correct |
28 ms |
8392 KB |
Output is correct |
| 45 |
Correct |
28 ms |
8424 KB |
Output is correct |
| 46 |
Correct |
26 ms |
8524 KB |
Output is correct |
| 47 |
Correct |
26 ms |
8456 KB |
Output is correct |
| 48 |
Correct |
26 ms |
8448 KB |
Output is correct |
