#include "gap.h"
#include <bits/stdc++.h>
using namespace std;
long long findGap(int type, int n) {
constexpr long long C = 1e18;
if (type == 1) {
vector<long long> a(n);
int idx_l = 0, idx_r = n - 1;
long long l = 0, r = C;
for (int t = 0; t < (n + 1) / 2; t++) {
MinMax(l, r, &a[idx_l], &a[idx_r]);
l = a[idx_l] + 1;
r = a[idx_r] - 1;
idx_l++;
idx_r--;
}
long long ans = 0;
for (int i = 0; i + 1 < n; i++) {
ans = max(ans, a[i + 1] - a[i]);
}
return ans;
} else {
long long x;
long long last;
MinMax(0, C, &x, &last);
assert(last - x >= n - 1);
long long ans = max(1LL, (last - x) / (n - 1) - 1);
while (last - x > ans) {
// with x, find some d such that [x, x + d] is only x, and [x + d + 1, x + d + 1 + d] is none empty and is (mn, mx)
// update ans with mn - x, and set new x to mx
// jump x until [x + ans] is only x
while (last - x > ans) {
// assert( [x, x + ans] is only x)
long long s = x + ans + 1;
assert(s <= C);
long long mn, mx;
MinMax(s, s + ans, &mn, &mx);
if (mn == -1) {
ans = ans + ans + 1;
} else {
ans = mn - x;
x = mx;
break;
}
}
while (last - x > ans) {
long long mn, mx;
MinMax(x + 1, x + ans, &mn, &mx);
if (mn == -1) {
break;
} else {
x = mx;
}
}
}
return ans;
}
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 9 |
Correct |
1 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
344 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
344 KB |
Output is correct |
| 15 |
Correct |
1 ms |
344 KB |
Output is correct |
| 16 |
Correct |
7 ms |
856 KB |
Output is correct |
| 17 |
Correct |
7 ms |
660 KB |
Output is correct |
| 18 |
Correct |
10 ms |
856 KB |
Output is correct |
| 19 |
Correct |
10 ms |
856 KB |
Output is correct |
| 20 |
Correct |
6 ms |
660 KB |
Output is correct |
| 21 |
Correct |
28 ms |
1880 KB |
Output is correct |
| 22 |
Correct |
26 ms |
1880 KB |
Output is correct |
| 23 |
Correct |
41 ms |
3416 KB |
Output is correct |
| 24 |
Correct |
28 ms |
3416 KB |
Output is correct |
| 25 |
Correct |
24 ms |
3416 KB |
Output is correct |
| 26 |
Correct |
30 ms |
3608 KB |
Output is correct |
| 27 |
Correct |
38 ms |
3596 KB |
Output is correct |
| 28 |
Correct |
27 ms |
3416 KB |
Output is correct |
| 29 |
Correct |
25 ms |
3416 KB |
Output is correct |
| 30 |
Correct |
22 ms |
3416 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 32 |
Correct |
0 ms |
2392 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 10 |
Incorrect |
1 ms |
2392 KB |
Output isn't correct |
| 11 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 16 |
Correct |
5 ms |
2392 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2392 KB |
Output is correct |
| 18 |
Correct |
8 ms |
2588 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2392 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 21 |
Correct |
18 ms |
2728 KB |
Output is correct |
| 22 |
Correct |
18 ms |
2648 KB |
Output is correct |
| 23 |
Correct |
27 ms |
2648 KB |
Output is correct |
| 24 |
Correct |
17 ms |
2648 KB |
Output is correct |
| 25 |
Correct |
33 ms |
2704 KB |
Output is correct |
| 26 |
Correct |
27 ms |
2648 KB |
Output is correct |
| 27 |
Correct |
17 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
19 ms |
2648 KB |
Output is correct |
| 29 |
Correct |
17 ms |
2648 KB |
Output is correct |
| 30 |
Correct |
11 ms |
2648 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 32 |
Correct |
1 ms |
2392 KB |
Output is correct |
