#include <bits/stdc++.h>
#define ll long long
using namespace std;
const int N = 2e5+7;
int a[N];
ll dp[N][2];
ll max(ll x, ll y)
{
if (x>y)
return x;
return y;
}
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
int n;
cin>>n;
ll ans=1e18;
for (int i=1;i<=n;++i)
cin>>a[i];
for (int i=1;i<=n;++i)
dp[i][0]=dp[i-1][0]+max(a[i-1]+1-a[i],0);
for (int i=n;i;--i)
dp[i][1]=dp[i+1][1]+max(a[i+1]+1-a[i],0);
for (int i=1;i<=n;++i)
ans=min(ans,max(dp[i-1][0],dp[i+1][1])+max(0,max(a[i-1]+1-a[i]-max(0,dp[i][1]-dp[i][0]),a[i+1]+1-a[i]-max(0,dp[i][0]-dp[i][1]))));
cout<<ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
2 ms |
460 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 |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 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 |
356 KB |
Output is correct |
| 24 |
Correct |
1 ms |
460 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
2 ms |
460 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 |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 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 |
356 KB |
Output is correct |
| 24 |
Correct |
1 ms |
460 KB |
Output is correct |
| 25 |
Correct |
2 ms |
332 KB |
Output is correct |
| 26 |
Correct |
35 ms |
6148 KB |
Output is correct |
| 27 |
Correct |
30 ms |
6084 KB |
Output is correct |
| 28 |
Correct |
29 ms |
6084 KB |
Output is correct |
| 29 |
Correct |
29 ms |
6076 KB |
Output is correct |
| 30 |
Correct |
27 ms |
5444 KB |
Output is correct |
| 31 |
Correct |
31 ms |
6096 KB |
Output is correct |
| 32 |
Correct |
32 ms |
6084 KB |
Output is correct |
| 33 |
Correct |
29 ms |
6080 KB |
Output is correct |
| 34 |
Correct |
28 ms |
6084 KB |
Output is correct |
| 35 |
Correct |
24 ms |
5360 KB |
Output is correct |
| 36 |
Correct |
26 ms |
5452 KB |
Output is correct |
| 37 |
Correct |
28 ms |
5440 KB |
Output is correct |
| 38 |
Correct |
29 ms |
6064 KB |
Output is correct |
| 39 |
Correct |
35 ms |
6076 KB |
Output is correct |
| 40 |
Correct |
29 ms |
6084 KB |
Output is correct |
| 41 |
Correct |
32 ms |
6096 KB |
Output is correct |
| 42 |
Correct |
27 ms |
5920 KB |
Output is correct |
| 43 |
Correct |
28 ms |
6108 KB |
Output is correct |
| 44 |
Correct |
28 ms |
6084 KB |
Output is correct |
| 45 |
Correct |
29 ms |
6128 KB |
Output is correct |
| 46 |
Correct |
35 ms |
6064 KB |
Output is correct |
| 47 |
Correct |
36 ms |
6168 KB |
Output is correct |
| 48 |
Correct |
29 ms |
6048 KB |
Output is correct |
