#include "gap.h"
#include <algorithm>
const long long N = 1000000000000000000;
long long task1(int n)
{
long long l = 0, r = N, ans = 0;
for (int i = 0; i * 2 < n; ++i) {
long long ll, rr;
MinMax(l, r, &ll, &rr);
if (l) ans = std::max(ans, ll - l + 1);
if (r != N) ans = std::max(ans, r - rr + 1);
if (i * 2 == n - 2) ans = std::max(ans, rr - ll);
l = ll + 1;
r = rr - 1;
}
return ans;
}
inline long long d(int n, int k, long long l, long long r)
{
return l + (__int128)(r - l) * k / n;
}
long long task2(int n)
{
long long l, r;
MinMax(0, N, &l, &r);
if (n == 2) return r - l;
++l;
long long pr = l - 1, ans = 0, len = d(n - 2, 1, l, r) - d(n - 2, 0, l, r);
for (int i = 0; i < n - 2; ++i) {
long long ll, rr;
MinMax(d(n - 2, i, l, r), d(n - 2, i + 1, l, r) - 1, &ll, &rr);
if (ll != -1) {
ans = std::max(ans, ll - pr);
pr = rr;
}
}
return std::max(ans, r - pr);
}
long long findGap(int t, int n)
{
if (t == 1) return task1(n);
return task2(n);
}
Compilation message
gap.cpp: In function 'long long int task2(int)':
gap.cpp:32:33: warning: unused variable 'len' [-Wunused-variable]
32 | long long pr = l - 1, ans = 0, len = d(n - 2, 1, l, r) - d(n - 2, 0, l, r);
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
200 KB |
Output is correct |
| 2 |
Correct |
0 ms |
256 KB |
Output is correct |
| 3 |
Correct |
0 ms |
200 KB |
Output is correct |
| 4 |
Correct |
0 ms |
200 KB |
Output is correct |
| 5 |
Correct |
0 ms |
200 KB |
Output is correct |
| 6 |
Correct |
0 ms |
200 KB |
Output is correct |
| 7 |
Correct |
0 ms |
200 KB |
Output is correct |
| 8 |
Correct |
0 ms |
200 KB |
Output is correct |
| 9 |
Correct |
1 ms |
200 KB |
Output is correct |
| 10 |
Correct |
0 ms |
200 KB |
Output is correct |
| 11 |
Correct |
1 ms |
200 KB |
Output is correct |
| 12 |
Correct |
1 ms |
200 KB |
Output is correct |
| 13 |
Correct |
1 ms |
200 KB |
Output is correct |
| 14 |
Correct |
1 ms |
200 KB |
Output is correct |
| 15 |
Correct |
1 ms |
200 KB |
Output is correct |
| 16 |
Correct |
11 ms |
456 KB |
Output is correct |
| 17 |
Correct |
10 ms |
456 KB |
Output is correct |
| 18 |
Correct |
12 ms |
384 KB |
Output is correct |
| 19 |
Correct |
11 ms |
452 KB |
Output is correct |
| 20 |
Correct |
8 ms |
456 KB |
Output is correct |
| 21 |
Correct |
46 ms |
1052 KB |
Output is correct |
| 22 |
Correct |
43 ms |
1048 KB |
Output is correct |
| 23 |
Correct |
43 ms |
1036 KB |
Output is correct |
| 24 |
Correct |
43 ms |
1056 KB |
Output is correct |
| 25 |
Correct |
38 ms |
1044 KB |
Output is correct |
| 26 |
Correct |
47 ms |
1080 KB |
Output is correct |
| 27 |
Correct |
43 ms |
1064 KB |
Output is correct |
| 28 |
Correct |
43 ms |
968 KB |
Output is correct |
| 29 |
Correct |
42 ms |
960 KB |
Output is correct |
| 30 |
Correct |
34 ms |
968 KB |
Output is correct |
| 31 |
Correct |
0 ms |
200 KB |
Output is correct |
| 32 |
Correct |
0 ms |
200 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
200 KB |
Output is correct |
| 2 |
Correct |
0 ms |
200 KB |
Output is correct |
| 3 |
Correct |
1 ms |
200 KB |
Output is correct |
| 4 |
Correct |
0 ms |
200 KB |
Output is correct |
| 5 |
Correct |
0 ms |
200 KB |
Output is correct |
| 6 |
Correct |
0 ms |
200 KB |
Output is correct |
| 7 |
Correct |
0 ms |
200 KB |
Output is correct |
| 8 |
Correct |
0 ms |
200 KB |
Output is correct |
| 9 |
Correct |
0 ms |
200 KB |
Output is correct |
| 10 |
Correct |
0 ms |
200 KB |
Output is correct |
| 11 |
Correct |
1 ms |
200 KB |
Output is correct |
| 12 |
Correct |
1 ms |
328 KB |
Output is correct |
| 13 |
Correct |
1 ms |
200 KB |
Output is correct |
| 14 |
Correct |
1 ms |
200 KB |
Output is correct |
| 15 |
Correct |
1 ms |
200 KB |
Output is correct |
| 16 |
Correct |
14 ms |
528 KB |
Output is correct |
| 17 |
Correct |
16 ms |
488 KB |
Output is correct |
| 18 |
Correct |
15 ms |
456 KB |
Output is correct |
| 19 |
Correct |
15 ms |
456 KB |
Output is correct |
| 20 |
Correct |
8 ms |
456 KB |
Output is correct |
| 21 |
Correct |
68 ms |
1028 KB |
Output is correct |
| 22 |
Correct |
67 ms |
960 KB |
Output is correct |
| 23 |
Correct |
62 ms |
1088 KB |
Output is correct |
| 24 |
Correct |
60 ms |
1040 KB |
Output is correct |
| 25 |
Correct |
57 ms |
960 KB |
Output is correct |
| 26 |
Correct |
62 ms |
1052 KB |
Output is correct |
| 27 |
Correct |
61 ms |
960 KB |
Output is correct |
| 28 |
Correct |
68 ms |
1044 KB |
Output is correct |
| 29 |
Correct |
61 ms |
996 KB |
Output is correct |
| 30 |
Correct |
34 ms |
1036 KB |
Output is correct |
| 31 |
Correct |
0 ms |
200 KB |
Output is correct |
| 32 |
Correct |
0 ms |
200 KB |
Output is correct |
