#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 3e5+5;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
ll a[MAXN];
ll pre[MAXN], suf[MAXN];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);cout.tie(nullptr);
#ifdef Local
freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
#endif
cin>>n;
for(int i = 1; i <= n; i++){
cin>>a[i];
}
for(int i = 1; i <= n; i++){
pre[i] = pre[i - 1] + max(0LL, a[i - 1] - a[i] + 1);
}
ll ans = INF;
for(int i = n; i >= 0; i--){
suf[i] = suf[i + 1] + max(0LL, a[i + 1] - a[i] + 1);
ans = min(ans, max(suf[i], pre[i]));
}
cout<<ans<<endl;
#ifdef Local
cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
#endif
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
1 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
364 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
1 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
364 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
25 |
Correct |
1 ms |
396 KB |
Output is correct |
26 |
Correct |
27 ms |
5740 KB |
Output is correct |
27 |
Correct |
26 ms |
5100 KB |
Output is correct |
28 |
Correct |
29 ms |
5100 KB |
Output is correct |
29 |
Correct |
26 ms |
5100 KB |
Output is correct |
30 |
Correct |
24 ms |
5228 KB |
Output is correct |
31 |
Correct |
25 ms |
5100 KB |
Output is correct |
32 |
Correct |
26 ms |
5100 KB |
Output is correct |
33 |
Correct |
27 ms |
5100 KB |
Output is correct |
34 |
Correct |
25 ms |
5100 KB |
Output is correct |
35 |
Correct |
21 ms |
5100 KB |
Output is correct |
36 |
Correct |
21 ms |
5100 KB |
Output is correct |
37 |
Correct |
21 ms |
5100 KB |
Output is correct |
38 |
Correct |
26 ms |
5100 KB |
Output is correct |
39 |
Correct |
33 ms |
5100 KB |
Output is correct |
40 |
Correct |
33 ms |
5100 KB |
Output is correct |
41 |
Correct |
26 ms |
5100 KB |
Output is correct |
42 |
Correct |
27 ms |
5100 KB |
Output is correct |
43 |
Correct |
26 ms |
5120 KB |
Output is correct |
44 |
Correct |
25 ms |
5100 KB |
Output is correct |
45 |
Correct |
26 ms |
5100 KB |
Output is correct |
46 |
Correct |
26 ms |
5100 KB |
Output is correct |
47 |
Correct |
32 ms |
5100 KB |
Output is correct |
48 |
Correct |
31 ms |
5100 KB |
Output is correct |