#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fr first
#define sc second
#define clr(a, x) memset(a, x, sizeof(a))
#define dbg(x) cout<<"("<<#x<<"): "<<x<<endl;
#define printvector(arr) for (auto it = arr.begin(); it != arr.end(); ++it) cout<<*it<<" "; cout<<endl;
#define all(v) v.begin(), v.end()
#define lcm(a, b) (a * b)/__gcd(a, b)
#define int long long int
#define printvecpairs(vec) for(auto it: vec) cout<<it.fr<<' '<<it.sc<<endl;
#define endl '\n'
#define float long double
const int MOD = 1e9 + 7;
const int INF = 2e15;
const int MAXN = 1e5 + 5;
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
#endif
int n;
cin>>n;
int a[n+4];
for(int i=0;i<n;i++){
cin>>a[i];
}
int pref[n+4], suff[n+4];
pref[0] = suff[n-1] = 0;
for(int i=1;i<n;i++){
pref[i] = pref[i-1];
pref[i] += max((int)0, a[i-1]-a[i]+1);
}
for(int i=n-2;i>=0;i--){
suff[i] = suff[i+1];
suff[i] += max((int)0, a[i+1]-a[i]+1);
}
int ans = LLONG_MAX;
for(int i=0;i<n;i++){
ans = min(ans, max(pref[i], suff[i]));
}
cout<<ans<<endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
312 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
1 ms |
320 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
328 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
324 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
328 KB |
Output is correct |
| 13 |
Correct |
1 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
324 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
324 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
336 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
336 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
312 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
1 ms |
320 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
328 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
324 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
328 KB |
Output is correct |
| 13 |
Correct |
1 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
324 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
324 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
336 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
336 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
336 KB |
Output is correct |
| 26 |
Correct |
22 ms |
6848 KB |
Output is correct |
| 27 |
Correct |
23 ms |
6848 KB |
Output is correct |
| 28 |
Correct |
23 ms |
6860 KB |
Output is correct |
| 29 |
Correct |
26 ms |
6856 KB |
Output is correct |
| 30 |
Correct |
20 ms |
6208 KB |
Output is correct |
| 31 |
Correct |
22 ms |
6848 KB |
Output is correct |
| 32 |
Correct |
22 ms |
6832 KB |
Output is correct |
| 33 |
Correct |
21 ms |
6836 KB |
Output is correct |
| 34 |
Correct |
23 ms |
6892 KB |
Output is correct |
| 35 |
Correct |
19 ms |
6076 KB |
Output is correct |
| 36 |
Correct |
18 ms |
6192 KB |
Output is correct |
| 37 |
Correct |
18 ms |
6212 KB |
Output is correct |
| 38 |
Correct |
23 ms |
6836 KB |
Output is correct |
| 39 |
Correct |
22 ms |
6840 KB |
Output is correct |
| 40 |
Correct |
23 ms |
6864 KB |
Output is correct |
| 41 |
Correct |
23 ms |
6852 KB |
Output is correct |
| 42 |
Correct |
22 ms |
6708 KB |
Output is correct |
| 43 |
Correct |
21 ms |
6852 KB |
Output is correct |
| 44 |
Correct |
21 ms |
6844 KB |
Output is correct |
| 45 |
Correct |
23 ms |
6848 KB |
Output is correct |
| 46 |
Correct |
21 ms |
6856 KB |
Output is correct |
| 47 |
Correct |
23 ms |
6844 KB |
Output is correct |
| 48 |
Correct |
21 ms |
6836 KB |
Output is correct |
