#include<bits/stdc++.h>
using namespace std;
const long long maxn=200000+10;
long long n,all[maxn];
long long ps[maxn],suf[maxn],dpps[maxn],dpsuf[maxn];
void vorod(){
cin>>n;
for(long long i=1;i<=n;i++){
cin>>all[i];
}
}
void pre(){
for(long long i=1;i<=n;i++){
ps[i]=ps[i-1];
ps[i]+=max(0ll,all[i-1]-all[i]+1);
}
for(long long i=n;i>=1;i--){
suf[i]=suf[i+1];
suf[i]+=max(0ll,all[i+1]-all[i]+1);
}
}
void solve(){
long long res=1e15;
for(long long i=1;i<=n;i++){
//cout<<i<<" "<<ps[i]<<" "<<suf[i]<<endl;
long long fres=max(ps[i],suf[i]);
res=min(res,fres);
}
cout<<res<<"\n";
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
// freopen("inp.txt","r",stdin);
vorod();
pre();
solve();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2528 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2392 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2528 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 26 |
Correct |
18 ms |
7976 KB |
Output is correct |
| 27 |
Correct |
17 ms |
7760 KB |
Output is correct |
| 28 |
Correct |
16 ms |
7772 KB |
Output is correct |
| 29 |
Correct |
17 ms |
7736 KB |
Output is correct |
| 30 |
Correct |
13 ms |
7260 KB |
Output is correct |
| 31 |
Correct |
17 ms |
8076 KB |
Output is correct |
| 32 |
Correct |
17 ms |
7772 KB |
Output is correct |
| 33 |
Correct |
17 ms |
8012 KB |
Output is correct |
| 34 |
Correct |
17 ms |
7772 KB |
Output is correct |
| 35 |
Correct |
15 ms |
7228 KB |
Output is correct |
| 36 |
Correct |
14 ms |
7260 KB |
Output is correct |
| 37 |
Correct |
13 ms |
7260 KB |
Output is correct |
| 38 |
Correct |
17 ms |
7824 KB |
Output is correct |
| 39 |
Correct |
16 ms |
7772 KB |
Output is correct |
| 40 |
Correct |
16 ms |
7936 KB |
Output is correct |
| 41 |
Correct |
18 ms |
7772 KB |
Output is correct |
| 42 |
Correct |
16 ms |
7640 KB |
Output is correct |
| 43 |
Correct |
16 ms |
7760 KB |
Output is correct |
| 44 |
Correct |
17 ms |
7772 KB |
Output is correct |
| 45 |
Correct |
16 ms |
7964 KB |
Output is correct |
| 46 |
Correct |
23 ms |
7760 KB |
Output is correct |
| 47 |
Correct |
16 ms |
7772 KB |
Output is correct |
| 48 |
Correct |
17 ms |
7772 KB |
Output is correct |
