#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<int> vei;
typedef vector<vei> vevei;
#define all(a) (a).begin(), (a).end()
#define sz(a) (int) a.size()
#define con cout << "NO\n"
#define coe cout << "YES\n";
#define str string
#define pb push_back
#define ff first
#define sc second
#define ss second
#define pii pair<int, int>
#define mxe max_element
#define mne min_element
#define stf shrink_to_fit
#define f(i, l, r) for (int i = (l); i < (r); i++)
#define double ld
#define int ll
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int n; cin >> n;
vector<int> a(n);
f(i, 0, n) cin >> a[i];
vector<int> pref(n + 1, 0);
for (int i = 2; i <= n; i++) {
pref[i] = pref[i - 1] + (a[i - 1] > a[i - 2] ? 0 : a[i - 2] - a[i - 1] + 1);
}
vector<int> suff(n + 1, 0);
for (int i = 2; i <= n; i++) {
suff[i] = suff[i - 1] + (a[n - i] > a[n - i + 1] ? 0 : a[n - i + 1] - a[n - i] + 1);
}
int ans = 1e18;
f(i, 0, n) {
ans = min(ans, max(pref[i + 1], suff[n - i]));
}
cout << ans << '\n';
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 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 |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 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 |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 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 |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 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 |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
0 ms |
348 KB |
Output is correct |
| 26 |
Correct |
19 ms |
6996 KB |
Output is correct |
| 27 |
Correct |
19 ms |
6992 KB |
Output is correct |
| 28 |
Correct |
20 ms |
7020 KB |
Output is correct |
| 29 |
Correct |
18 ms |
7060 KB |
Output is correct |
| 30 |
Correct |
14 ms |
6236 KB |
Output is correct |
| 31 |
Correct |
18 ms |
7004 KB |
Output is correct |
| 32 |
Correct |
18 ms |
6880 KB |
Output is correct |
| 33 |
Correct |
18 ms |
7004 KB |
Output is correct |
| 34 |
Correct |
19 ms |
7004 KB |
Output is correct |
| 35 |
Correct |
14 ms |
6236 KB |
Output is correct |
| 36 |
Correct |
15 ms |
6236 KB |
Output is correct |
| 37 |
Correct |
17 ms |
6600 KB |
Output is correct |
| 38 |
Correct |
18 ms |
7256 KB |
Output is correct |
| 39 |
Correct |
18 ms |
6996 KB |
Output is correct |
| 40 |
Correct |
18 ms |
7016 KB |
Output is correct |
| 41 |
Correct |
18 ms |
7004 KB |
Output is correct |
| 42 |
Correct |
17 ms |
6740 KB |
Output is correct |
| 43 |
Correct |
18 ms |
6996 KB |
Output is correct |
| 44 |
Correct |
18 ms |
7016 KB |
Output is correct |
| 45 |
Correct |
18 ms |
7244 KB |
Output is correct |
| 46 |
Correct |
17 ms |
6996 KB |
Output is correct |
| 47 |
Correct |
18 ms |
7004 KB |
Output is correct |
| 48 |
Correct |
18 ms |
7012 KB |
Output is correct |
