#include <bits/stdc++.h>
using namespace std;
//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pi;
#define pb push_back
#define mp make_pair
#define f first
#define s second
void solve(){
int n;
cin >> n;
vector<ll> a(n), up(n), down(n);
for(int i = 0; i < n; i++)
cin >> a[i];
up[0] = down[n-1] = 0;
for(int i = 1; i < n; i++){
ll curr = max(a[i-1]+1, a[i]);
up[i] = up[i-1] + curr - a[i];
}
for(int i = n-2; i >= 0; i--){
ll curr = max(a[i+1]+1, a[i]);
down[i] = down[i+1] + curr - a[i];
}
ll ans = 1e18;
for(int i = 0; i < n; i++)
ans = min(ans, max(up[i], down[i]));
cout << ans << '\n';
}
int main(){
// freopen("hex.in", "r", stdin);
// freopen("hex.out", "w", stdout);
ios::sync_with_stdio(0); cin.tie(0);
int t = 1;
//cin >> t;
while(t--){
solve();
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
464 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
348 KB |
Output is correct |
| 14 |
Correct |
1 ms |
344 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
524 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
468 KB |
Output is correct |
| 23 |
Correct |
1 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
464 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
348 KB |
Output is correct |
| 14 |
Correct |
1 ms |
344 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
524 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
468 KB |
Output is correct |
| 23 |
Correct |
1 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
1 ms |
344 KB |
Output is correct |
| 26 |
Correct |
17 ms |
7004 KB |
Output is correct |
| 27 |
Correct |
18 ms |
7068 KB |
Output is correct |
| 28 |
Correct |
18 ms |
7004 KB |
Output is correct |
| 29 |
Correct |
18 ms |
7072 KB |
Output is correct |
| 30 |
Correct |
15 ms |
6236 KB |
Output is correct |
| 31 |
Correct |
17 ms |
7000 KB |
Output is correct |
| 32 |
Correct |
18 ms |
7004 KB |
Output is correct |
| 33 |
Correct |
18 ms |
6992 KB |
Output is correct |
| 34 |
Correct |
18 ms |
7000 KB |
Output is correct |
| 35 |
Correct |
15 ms |
6492 KB |
Output is correct |
| 36 |
Correct |
14 ms |
6236 KB |
Output is correct |
| 37 |
Correct |
14 ms |
6236 KB |
Output is correct |
| 38 |
Correct |
18 ms |
7000 KB |
Output is correct |
| 39 |
Correct |
17 ms |
6936 KB |
Output is correct |
| 40 |
Correct |
17 ms |
6940 KB |
Output is correct |
| 41 |
Correct |
20 ms |
7008 KB |
Output is correct |
| 42 |
Correct |
17 ms |
6748 KB |
Output is correct |
| 43 |
Correct |
17 ms |
7000 KB |
Output is correct |
| 44 |
Correct |
17 ms |
7004 KB |
Output is correct |
| 45 |
Correct |
17 ms |
6992 KB |
Output is correct |
| 46 |
Correct |
17 ms |
7004 KB |
Output is correct |
| 47 |
Correct |
18 ms |
7200 KB |
Output is correct |
| 48 |
Correct |
18 ms |
7004 KB |
Output is correct |
