#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> ii;
int solve(int low, int upp, ii a, ii b) {
while (a.first + a.second != b.first + b.second) {
if (a.first + a.second < b.first + b.second) {
low++;
if (low < upp) {
auto qres = ask(low);
a = {qres[0], qres[1]};
if (a.first + a.second == 0) return low;
}
else a = b;
}
else {
upp--;
if (low < upp) {
auto qres = ask(upp);
b = {qres[0], qres[1]};
if (b.first + b.second == 0) return upp;
}
else b = a;
}
}
if (a.first == b.first) return 0;
int mid = (low + upp) / 2;
auto cres = ask(mid);
ii c = {cres[0], cres[1]};
if (c.first + c.second == 0) return mid;
return solve(low, mid, a, c) + solve(mid, upp, c, b);
}
int find_best(int n) {
if (n < 5000) {
for (int i = 0; i < n; ++i) {
auto a = ask(i);
if (a[0] + a[1] == 0) return i;
}
}
auto qres = ask(0);
ii a = {qres[0], qres[1]};
if (a.first + a.second == 0) return 0;
qres = ask(n - 1);
ii b = {qres[0], qres[1]};
if (b.first + b.second == 0) return n - 1;
return solve(0, n - 1, a, b);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
600 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
596 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
2 ms |
344 KB |
Output is correct |
| 12 |
Correct |
2 ms |
344 KB |
Output is correct |
| 13 |
Correct |
3 ms |
344 KB |
Output is correct |
| 14 |
Correct |
4 ms |
344 KB |
Output is correct |
| 15 |
Correct |
19 ms |
436 KB |
Output is correct |
| 16 |
Correct |
23 ms |
344 KB |
Output is correct |
| 17 |
Correct |
20 ms |
344 KB |
Output is correct |
| 18 |
Correct |
22 ms |
344 KB |
Output is correct |
| 19 |
Correct |
21 ms |
344 KB |
Output is correct |
| 20 |
Correct |
16 ms |
344 KB |
Output is correct |
| 21 |
Correct |
22 ms |
344 KB |
Output is correct |
| 22 |
Correct |
14 ms |
344 KB |
Output is correct |
| 23 |
Correct |
1 ms |
600 KB |
Output is correct |
| 24 |
Correct |
2 ms |
344 KB |
Output is correct |
| 25 |
Correct |
20 ms |
344 KB |
Output is correct |
| 26 |
Correct |
14 ms |
344 KB |
Output is correct |
| 27 |
Correct |
1 ms |
344 KB |
Output is correct |
| 28 |
Correct |
28 ms |
600 KB |
Output is correct |
| 29 |
Correct |
18 ms |
344 KB |
Output is correct |
| 30 |
Correct |
17 ms |
344 KB |
Output is correct |
| 31 |
Correct |
21 ms |
344 KB |
Output is correct |
| 32 |
Correct |
2 ms |
344 KB |
Output is correct |
| 33 |
Correct |
1 ms |
344 KB |
Output is correct |
| 34 |
Correct |
30 ms |
600 KB |
Output is correct |
| 35 |
Correct |
1 ms |
344 KB |
Output is correct |
| 36 |
Correct |
21 ms |
344 KB |
Output is correct |
| 37 |
Correct |
2 ms |
344 KB |
Output is correct |
| 38 |
Correct |
1 ms |
596 KB |
Output is correct |
| 39 |
Correct |
25 ms |
344 KB |
Output is correct |
| 40 |
Correct |
25 ms |
344 KB |
Output is correct |
| 41 |
Correct |
21 ms |
344 KB |
Output is correct |
| 42 |
Correct |
20 ms |
344 KB |
Output is correct |
| 43 |
Correct |
19 ms |
344 KB |
Output is correct |
| 44 |
Correct |
27 ms |
344 KB |
Output is correct |
| 45 |
Correct |
23 ms |
344 KB |
Output is correct |
| 46 |
Correct |
20 ms |
344 KB |
Output is correct |
| 47 |
Correct |
20 ms |
600 KB |
Output is correct |
| 48 |
Correct |
20 ms |
344 KB |
Output is correct |
| 49 |
Correct |
17 ms |
344 KB |
Output is correct |
| 50 |
Correct |
27 ms |
344 KB |
Output is correct |
| 51 |
Correct |
19 ms |
344 KB |
Output is correct |
| 52 |
Correct |
26 ms |
344 KB |
Output is correct |
| 53 |
Correct |
1 ms |
344 KB |
Output is correct |
| 54 |
Correct |
20 ms |
344 KB |
Output is correct |
| 55 |
Correct |
28 ms |
344 KB |
Output is correct |
| 56 |
Correct |
19 ms |
356 KB |
Output is correct |
| 57 |
Correct |
26 ms |
344 KB |
Output is correct |
| 58 |
Correct |
18 ms |
344 KB |
Output is correct |
| 59 |
Correct |
16 ms |
344 KB |
Output is correct |
| 60 |
Correct |
18 ms |
344 KB |
Output is correct |
| 61 |
Correct |
1 ms |
344 KB |
Output is correct |
| 62 |
Correct |
1 ms |
344 KB |
Output is correct |
| 63 |
Correct |
1 ms |
344 KB |
Output is correct |
| 64 |
Correct |
1 ms |
344 KB |
Output is correct |
| 65 |
Correct |
0 ms |
344 KB |
Output is correct |
| 66 |
Correct |
0 ms |
344 KB |
Output is correct |
| 67 |
Correct |
2 ms |
344 KB |
Output is correct |
| 68 |
Correct |
2 ms |
344 KB |
Output is correct |
| 69 |
Correct |
1 ms |
344 KB |
Output is correct |
| 70 |
Correct |
1 ms |
344 KB |
Output is correct |
| 71 |
Correct |
21 ms |
344 KB |
Output is correct |
| 72 |
Correct |
2 ms |
344 KB |
Output is correct |
| 73 |
Correct |
21 ms |
344 KB |
Output is correct |
| 74 |
Correct |
21 ms |
344 KB |
Output is correct |
| 75 |
Correct |
1 ms |
344 KB |
Output is correct |
| 76 |
Correct |
16 ms |
344 KB |
Output is correct |
| 77 |
Correct |
25 ms |
344 KB |
Output is correct |
| 78 |
Correct |
2 ms |
344 KB |
Output is correct |
| 79 |
Correct |
12 ms |
344 KB |
Output is correct |
| 80 |
Correct |
20 ms |
344 KB |
Output is correct |
| 81 |
Correct |
21 ms |
344 KB |
Output is correct |
| 82 |
Correct |
22 ms |
344 KB |
Output is correct |
| 83 |
Correct |
1 ms |
344 KB |
Output is correct |
| 84 |
Correct |
25 ms |
344 KB |
Output is correct |
| 85 |
Correct |
25 ms |
344 KB |
Output is correct |
| 86 |
Correct |
1 ms |
344 KB |
Output is correct |
| 87 |
Correct |
1 ms |
344 KB |
Output is correct |
| 88 |
Correct |
2 ms |
600 KB |
Output is correct |
| 89 |
Correct |
1 ms |
340 KB |
Output is correct |
| 90 |
Correct |
0 ms |
344 KB |
Output is correct |
| 91 |
Correct |
1 ms |
344 KB |
Output is correct |
| 92 |
Correct |
1 ms |
344 KB |
Output is correct |
| 93 |
Correct |
2 ms |
344 KB |
Output is correct |
| 94 |
Correct |
2 ms |
344 KB |
Output is correct |
| 95 |
Correct |
2 ms |
344 KB |
Output is correct |
| 96 |
Correct |
1 ms |
344 KB |
Output is correct |
| 97 |
Correct |
1 ms |
344 KB |
Output is correct |
