#include "prize.h"
#include "bits/stdc++.h"
using namespace std;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
vvi Qu;
vi query(int i)
{
if (Qu[i][0] == -1)
Qu[i] = ask(i);
return Qu[i];
}
set<int> sums;
int reference;
vi interesting;
int cnt;
int r;
void resolve(int l)
{
if (r - l == 0)
return;
vi tmp = query(l);
if (tmp[0] + tmp[1] != reference)
{
resolve(l + 1);
interesting.push_back(l);
++cnt;
}
else
{
while (tmp[1] > cnt)
resolve((l + r) / 2);
}
r = l;
}
int find_best(int n)
{
Qu.assign(n, {-1, -1});
if (n <= 5000)
{ // query everything
for (int i = 0; i < n; i++)
{
std::vector<int> res = ask(i);
if (res[0] + res[1] == 0)
return i;
}
}
int j = 0;
while (n / (1 << (j + 1)) >= 500)
++j;
sums.clear();
int i;
for (i = 0; i < n; i += (1 << j))
{
vi tmp = query(i);
sums.insert(tmp[0] + tmp[1]);
}
reference = *sums.rbegin();
cnt = 0;
if (i >= n)
i -= (1 << j);
r = n;
while (i >= 0)
{
resolve(i);
i -= (1 << j);
}
for (int x : interesting)
{
vi tmp = query(x);
if (tmp[0] + tmp[1] == 0)
return x;
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
11216 KB |
Output is correct |
| 2 |
Correct |
11 ms |
11264 KB |
Output is correct |
| 3 |
Correct |
14 ms |
11260 KB |
Output is correct |
| 4 |
Correct |
16 ms |
11344 KB |
Output is correct |
| 5 |
Correct |
11 ms |
11260 KB |
Output is correct |
| 6 |
Correct |
16 ms |
11216 KB |
Output is correct |
| 7 |
Correct |
13 ms |
11208 KB |
Output is correct |
| 8 |
Correct |
18 ms |
11216 KB |
Output is correct |
| 9 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 10 |
Correct |
17 ms |
11216 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
14 ms |
11340 KB |
Output is correct |
| 2 |
Correct |
15 ms |
11260 KB |
Output is correct |
| 3 |
Correct |
16 ms |
11192 KB |
Output is correct |
| 4 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 5 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 6 |
Correct |
15 ms |
11168 KB |
Output is correct |
| 7 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 8 |
Correct |
13 ms |
11216 KB |
Output is correct |
| 9 |
Correct |
18 ms |
11216 KB |
Output is correct |
| 10 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 11 |
Correct |
14 ms |
11216 KB |
Output is correct |
| 12 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 13 |
Correct |
16 ms |
11216 KB |
Output is correct |
| 14 |
Correct |
10 ms |
1360 KB |
Output is correct |
| 15 |
Correct |
49 ms |
11252 KB |
Output is correct |
| 16 |
Correct |
42 ms |
11248 KB |
Output is correct |
| 17 |
Correct |
38 ms |
11236 KB |
Output is correct |
| 18 |
Correct |
36 ms |
11248 KB |
Output is correct |
| 19 |
Correct |
36 ms |
11216 KB |
Output is correct |
| 20 |
Correct |
20 ms |
5712 KB |
Output is correct |
| 21 |
Correct |
40 ms |
11216 KB |
Output is correct |
| 22 |
Correct |
37 ms |
11340 KB |
Output is correct |
| 23 |
Correct |
14 ms |
11216 KB |
Output is correct |
| 24 |
Correct |
18 ms |
11216 KB |
Output is correct |
| 25 |
Correct |
37 ms |
11264 KB |
Output is correct |
| 26 |
Correct |
43 ms |
11340 KB |
Output is correct |
| 27 |
Correct |
14 ms |
11216 KB |
Output is correct |
| 28 |
Correct |
33 ms |
11216 KB |
Output is correct |
| 29 |
Correct |
31 ms |
11328 KB |
Output is correct |
| 30 |
Correct |
28 ms |
11296 KB |
Output is correct |
| 31 |
Correct |
45 ms |
11256 KB |
Output is correct |
| 32 |
Correct |
17 ms |
11212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
208 KB |
Output is correct |
| 34 |
Correct |
33 ms |
11260 KB |
Output is correct |
| 35 |
Correct |
12 ms |
11324 KB |
Output is correct |
| 36 |
Correct |
35 ms |
11332 KB |
Output is correct |
| 37 |
Correct |
19 ms |
11236 KB |
Output is correct |
| 38 |
Correct |
18 ms |
11208 KB |
Output is correct |
| 39 |
Correct |
44 ms |
11260 KB |
Output is correct |
| 40 |
Correct |
36 ms |
11288 KB |
Output is correct |
| 41 |
Correct |
32 ms |
11216 KB |
Output is correct |
| 42 |
Correct |
47 ms |
11248 KB |
Output is correct |
| 43 |
Correct |
41 ms |
11236 KB |
Output is correct |
| 44 |
Correct |
48 ms |
11252 KB |
Output is correct |
| 45 |
Correct |
39 ms |
11256 KB |
Output is correct |
| 46 |
Correct |
31 ms |
11256 KB |
Output is correct |
| 47 |
Correct |
38 ms |
11216 KB |
Output is correct |
| 48 |
Correct |
27 ms |
11268 KB |
Output is correct |
| 49 |
Correct |
45 ms |
11252 KB |
Output is correct |
| 50 |
Correct |
34 ms |
11252 KB |
Output is correct |
| 51 |
Correct |
35 ms |
11216 KB |
Output is correct |
| 52 |
Correct |
29 ms |
11256 KB |
Output is correct |
| 53 |
Correct |
16 ms |
11160 KB |
Output is correct |
| 54 |
Correct |
24 ms |
11272 KB |
Output is correct |
| 55 |
Correct |
40 ms |
11268 KB |
Output is correct |
| 56 |
Correct |
35 ms |
11216 KB |
Output is correct |
| 57 |
Correct |
45 ms |
11168 KB |
Output is correct |
| 58 |
Correct |
41 ms |
11260 KB |
Output is correct |
| 59 |
Correct |
33 ms |
11216 KB |
Output is correct |
| 60 |
Correct |
45 ms |
11256 KB |
Output is correct |
| 61 |
Correct |
15 ms |
11160 KB |
Output is correct |
| 62 |
Correct |
15 ms |
11160 KB |
Output is correct |
| 63 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 64 |
Correct |
14 ms |
11216 KB |
Output is correct |
| 65 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 66 |
Correct |
16 ms |
11216 KB |
Output is correct |
| 67 |
Correct |
19 ms |
11216 KB |
Output is correct |
| 68 |
Correct |
17 ms |
11288 KB |
Output is correct |
| 69 |
Correct |
14 ms |
11288 KB |
Output is correct |
| 70 |
Correct |
15 ms |
11208 KB |
Output is correct |
| 71 |
Correct |
49 ms |
11320 KB |
Output is correct |
| 72 |
Correct |
13 ms |
11216 KB |
Output is correct |
| 73 |
Correct |
44 ms |
11216 KB |
Output is correct |
| 74 |
Correct |
49 ms |
11248 KB |
Output is correct |
| 75 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 76 |
Correct |
44 ms |
11216 KB |
Output is correct |
| 77 |
Correct |
47 ms |
11256 KB |
Output is correct |
| 78 |
Correct |
14 ms |
11216 KB |
Output is correct |
| 79 |
Correct |
29 ms |
11216 KB |
Output is correct |
| 80 |
Correct |
37 ms |
11376 KB |
Output is correct |
| 81 |
Correct |
36 ms |
11216 KB |
Output is correct |
| 82 |
Correct |
32 ms |
11216 KB |
Output is correct |
| 83 |
Correct |
15 ms |
11276 KB |
Output is correct |
| 84 |
Correct |
23 ms |
11256 KB |
Output is correct |
| 85 |
Correct |
49 ms |
11216 KB |
Output is correct |
| 86 |
Correct |
21 ms |
11336 KB |
Output is correct |
| 87 |
Correct |
17 ms |
11216 KB |
Output is correct |
| 88 |
Correct |
16 ms |
11272 KB |
Output is correct |
| 89 |
Correct |
15 ms |
11232 KB |
Output is correct |
| 90 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 91 |
Correct |
15 ms |
11164 KB |
Output is correct |
| 92 |
Correct |
15 ms |
11216 KB |
Output is correct |
| 93 |
Correct |
18 ms |
11276 KB |
Output is correct |
| 94 |
Correct |
23 ms |
11216 KB |
Output is correct |
| 95 |
Correct |
15 ms |
11180 KB |
Output is correct |
| 96 |
Correct |
22 ms |
11264 KB |
Output is correct |
| 97 |
Correct |
19 ms |
11252 KB |
Output is correct |
