#include<bits/stdc++.h>
#define x first
#define y second
#define pb push_back
#define mp make_pair
#define sz(v) v.size()
#define up_b upper_bound
#define low_b lower_bound
#define all(v) v.begin(),v.end()
using namespace std;
typedef long long ll;
typedef long double ld;
const int N=2e5+11;
const ll mod=1e9+7;
const ll INF=1e18;
ll a[N],b[N];
ll pref[N],suf[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];
if(i>1)b[i-1]=a[i]-a[i-1];
}
for(int i=1;i<n;i++){
pref[i]=pref[i-1]+max(-b[i]+1,0ll);
}
for(int i=n-1;i>=1;i--){
suf[i]=suf[i+1]+max(b[i]+1,0ll);
}
ll res=INF;
for(int i=1;i<=n;i++){
// cout<<pref[i-1]<<" "<<suf[i]<<endl;
res=min(res,max(pref[i-1],suf[i]));
}
cout<<res;
return 0;
}
| # |
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 |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 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 |
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 |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 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 |
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 |
31 ms |
8484 KB |
Output is correct |
| 27 |
Correct |
28 ms |
8392 KB |
Output is correct |
| 28 |
Correct |
28 ms |
8476 KB |
Output is correct |
| 29 |
Correct |
27 ms |
8412 KB |
Output is correct |
| 30 |
Correct |
26 ms |
7732 KB |
Output is correct |
| 31 |
Correct |
29 ms |
8516 KB |
Output is correct |
| 32 |
Correct |
29 ms |
8520 KB |
Output is correct |
| 33 |
Correct |
29 ms |
8528 KB |
Output is correct |
| 34 |
Correct |
27 ms |
8472 KB |
Output is correct |
| 35 |
Correct |
26 ms |
7664 KB |
Output is correct |
| 36 |
Correct |
26 ms |
7820 KB |
Output is correct |
| 37 |
Correct |
24 ms |
7748 KB |
Output is correct |
| 38 |
Correct |
27 ms |
8468 KB |
Output is correct |
| 39 |
Correct |
35 ms |
8472 KB |
Output is correct |
| 40 |
Correct |
28 ms |
8544 KB |
Output is correct |
| 41 |
Correct |
27 ms |
8424 KB |
Output is correct |
| 42 |
Correct |
26 ms |
8268 KB |
Output is correct |
| 43 |
Correct |
30 ms |
8524 KB |
Output is correct |
| 44 |
Correct |
28 ms |
8460 KB |
Output is correct |
| 45 |
Correct |
29 ms |
8396 KB |
Output is correct |
| 46 |
Correct |
28 ms |
8440 KB |
Output is correct |
| 47 |
Correct |
34 ms |
8396 KB |
Output is correct |
| 48 |
Correct |
27 ms |
8512 KB |
Output is correct |
