#include <bits/stdc++.h>
using namespace std;
int main()
{
int N;
cin >> N;
vector<int> A(N);
for (int i = 0; i < N; i++)
{
cin >> A[i];
}
long long tot = 0;
int a = 1, b = N - 2, adda = 0, addb = 0;
while (a <= b)
{
while (A[a - 1] - adda < A[a])
{
a++;
adda = 0;
}
while (A[b + 1] - addb < A[b])
{
b--;
addb = 0;
}
if (a > b)
break;
int m = min(A[a - 1] - A[a] + 1 - adda, A[b + 1] - A[b] + 1 - addb);
adda += m;
addb += m;
tot += m;
}
if (A[a] == A[b] && a == b + 1)
tot++;
cout << tot;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
312 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
308 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
2 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
232 KB |
Output is correct |
19 |
Correct |
1 ms |
312 KB |
Output is correct |
20 |
Correct |
1 ms |
324 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
316 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
312 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
308 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
2 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
232 KB |
Output is correct |
19 |
Correct |
1 ms |
312 KB |
Output is correct |
20 |
Correct |
1 ms |
324 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
316 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
324 KB |
Output is correct |
26 |
Correct |
59 ms |
2976 KB |
Output is correct |
27 |
Correct |
58 ms |
2984 KB |
Output is correct |
28 |
Correct |
70 ms |
2988 KB |
Output is correct |
29 |
Correct |
56 ms |
2976 KB |
Output is correct |
30 |
Correct |
41 ms |
2356 KB |
Output is correct |
31 |
Correct |
61 ms |
2988 KB |
Output is correct |
32 |
Correct |
61 ms |
2980 KB |
Output is correct |
33 |
Correct |
57 ms |
3020 KB |
Output is correct |
34 |
Correct |
56 ms |
3020 KB |
Output is correct |
35 |
Correct |
40 ms |
2124 KB |
Output is correct |
36 |
Correct |
42 ms |
2220 KB |
Output is correct |
37 |
Correct |
42 ms |
2208 KB |
Output is correct |
38 |
Correct |
57 ms |
2988 KB |
Output is correct |
39 |
Correct |
57 ms |
3020 KB |
Output is correct |
40 |
Correct |
56 ms |
2980 KB |
Output is correct |
41 |
Correct |
57 ms |
2996 KB |
Output is correct |
42 |
Correct |
53 ms |
2764 KB |
Output is correct |
43 |
Correct |
57 ms |
2976 KB |
Output is correct |
44 |
Correct |
56 ms |
2984 KB |
Output is correct |
45 |
Correct |
56 ms |
2984 KB |
Output is correct |
46 |
Correct |
57 ms |
3020 KB |
Output is correct |
47 |
Correct |
57 ms |
2980 KB |
Output is correct |
48 |
Correct |
58 ms |
2980 KB |
Output is correct |