#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
int lolipop = -1;
int best = -1;
int solve(int l, int r, int before_left, int cnt) {
if (cnt == 0) return -1;
// cerr << l << ' ' << r << ' ' << before_left << '\n';
if (l >= r) return -1;
//[l, r)
int m = l + r >> 1;
// [l, m) [m + 1, r)
int rm = m;
int L, R;
while (rm < r) {
auto mid = ask(rm);
if (mid[0] + mid[1] == 0) return rm;
if (mid[0] + mid[1] == best) {
L = mid[0], R = mid[1];
break;
}
rm++;
}
int cnt_m = rm - m;
int left_size = L - before_left - cnt_m;
int right_size = cnt - left_size;
if (rm == r) {
return solve(l, m, before_left, left_size);
} else {
return max(solve(l, m, before_left, left_size), solve(rm + 1, r, L, right_size));
}
}
int find_best(int n) {
const int LIM = 500;
vector<vector<int>> b(LIM);
for (int i = 0; i < LIM; i++) {
b[i] = ask(i);
if (best < b[i][0] + b[i][1]) {
best = b[i][0] + b[i][1];
lolipop = i;
}
if (b[i][0] + b[i][1] == 0) return i;
}
int cnt = 0;
for (int i = 0; i < LIM; i++) {
if (b[i][0] + b[i][1] < best) cnt++;
}
return solve(LIM, n, cnt, best - cnt);
}
Compilation message
prize.cpp: In function 'int solve(int, int, int, int)':
prize.cpp:12:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
12 | int m = l + r >> 1;
| ~~^~~
prize.cpp:15:16: warning: variable 'R' set but not used [-Wunused-but-set-variable]
15 | int L, R;
| ^
prize.cpp:26:27: warning: 'L' may be used uninitialized in this function [-Wmaybe-uninitialized]
26 | int left_size = L - before_left - cnt_m;
| ~~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
208 KB |
Output is correct |
| 2 |
Correct |
5 ms |
208 KB |
Output is correct |
| 3 |
Correct |
4 ms |
288 KB |
Output is correct |
| 4 |
Correct |
6 ms |
292 KB |
Output is correct |
| 5 |
Correct |
5 ms |
292 KB |
Output is correct |
| 6 |
Correct |
1 ms |
288 KB |
Output is correct |
| 7 |
Correct |
7 ms |
208 KB |
Output is correct |
| 8 |
Correct |
4 ms |
288 KB |
Output is correct |
| 9 |
Correct |
5 ms |
280 KB |
Output is correct |
| 10 |
Correct |
6 ms |
308 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
292 KB |
Output is correct |
| 2 |
Correct |
3 ms |
296 KB |
Output is correct |
| 3 |
Correct |
3 ms |
312 KB |
Output is correct |
| 4 |
Correct |
7 ms |
292 KB |
Output is correct |
| 5 |
Correct |
5 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
292 KB |
Output is correct |
| 7 |
Correct |
7 ms |
272 KB |
Output is correct |
| 8 |
Correct |
2 ms |
312 KB |
Output is correct |
| 9 |
Correct |
5 ms |
300 KB |
Output is correct |
| 10 |
Correct |
4 ms |
208 KB |
Output is correct |
| 11 |
Correct |
7 ms |
288 KB |
Output is correct |
| 12 |
Correct |
11 ms |
288 KB |
Output is correct |
| 13 |
Correct |
6 ms |
272 KB |
Output is correct |
| 14 |
Correct |
16 ms |
324 KB |
Output is correct |
| 15 |
Partially correct |
51 ms |
300 KB |
Partially correct - number of queries: 5023 |
| 16 |
Partially correct |
34 ms |
272 KB |
Partially correct - number of queries: 5248 |
| 17 |
Correct |
4 ms |
280 KB |
Output is correct |
| 18 |
Partially correct |
57 ms |
292 KB |
Partially correct - number of queries: 5247 |
| 19 |
Correct |
5 ms |
284 KB |
Output is correct |
| 20 |
Correct |
26 ms |
292 KB |
Output is correct |
| 21 |
Partially correct |
47 ms |
292 KB |
Partially correct - number of queries: 5214 |
| 22 |
Correct |
32 ms |
292 KB |
Output is correct |
| 23 |
Correct |
3 ms |
340 KB |
Output is correct |
| 24 |
Correct |
11 ms |
312 KB |
Output is correct |
| 25 |
Correct |
37 ms |
284 KB |
Output is correct |
| 26 |
Correct |
44 ms |
304 KB |
Output is correct |
| 27 |
Correct |
4 ms |
208 KB |
Output is correct |
| 28 |
Correct |
43 ms |
208 KB |
Output is correct |
| 29 |
Correct |
16 ms |
316 KB |
Output is correct |
| 30 |
Partially correct |
49 ms |
276 KB |
Partially correct - number of queries: 5212 |
| 31 |
Correct |
3 ms |
208 KB |
Output is correct |
| 32 |
Correct |
6 ms |
320 KB |
Output is correct |
| 33 |
Correct |
0 ms |
208 KB |
Output is correct |
| 34 |
Partially correct |
34 ms |
408 KB |
Partially correct - number of queries: 5245 |
| 35 |
Correct |
9 ms |
296 KB |
Output is correct |
| 36 |
Partially correct |
34 ms |
300 KB |
Partially correct - number of queries: 5210 |
| 37 |
Correct |
4 ms |
316 KB |
Output is correct |
| 38 |
Correct |
4 ms |
296 KB |
Output is correct |
| 39 |
Partially correct |
30 ms |
280 KB |
Partially correct - number of queries: 5213 |
| 40 |
Correct |
28 ms |
280 KB |
Output is correct |
| 41 |
Partially correct |
49 ms |
292 KB |
Partially correct - number of queries: 5248 |
| 42 |
Partially correct |
45 ms |
284 KB |
Partially correct - number of queries: 5248 |
| 43 |
Partially correct |
37 ms |
304 KB |
Partially correct - number of queries: 5115 |
| 44 |
Partially correct |
23 ms |
296 KB |
Partially correct - number of queries: 5249 |
| 45 |
Correct |
45 ms |
208 KB |
Output is correct |
| 46 |
Correct |
4 ms |
296 KB |
Output is correct |
| 47 |
Correct |
30 ms |
312 KB |
Output is correct |
| 48 |
Partially correct |
56 ms |
208 KB |
Partially correct - number of queries: 5248 |
| 49 |
Partially correct |
41 ms |
308 KB |
Partially correct - number of queries: 5248 |
| 50 |
Partially correct |
20 ms |
308 KB |
Partially correct - number of queries: 5250 |
| 51 |
Partially correct |
44 ms |
208 KB |
Partially correct - number of queries: 5249 |
| 52 |
Partially correct |
34 ms |
208 KB |
Partially correct - number of queries: 5248 |
| 53 |
Correct |
5 ms |
288 KB |
Output is correct |
| 54 |
Partially correct |
42 ms |
208 KB |
Partially correct - number of queries: 5212 |
| 55 |
Correct |
6 ms |
292 KB |
Output is correct |
| 56 |
Partially correct |
52 ms |
284 KB |
Partially correct - number of queries: 5248 |
| 57 |
Partially correct |
40 ms |
304 KB |
Partially correct - number of queries: 5212 |
| 58 |
Partially correct |
32 ms |
304 KB |
Partially correct - number of queries: 5250 |
| 59 |
Partially correct |
38 ms |
284 KB |
Partially correct - number of queries: 5250 |
| 60 |
Partially correct |
40 ms |
292 KB |
Partially correct - number of queries: 5213 |
| 61 |
Correct |
7 ms |
268 KB |
Output is correct |
| 62 |
Correct |
5 ms |
300 KB |
Output is correct |
| 63 |
Correct |
5 ms |
272 KB |
Output is correct |
| 64 |
Correct |
5 ms |
284 KB |
Output is correct |
| 65 |
Correct |
6 ms |
208 KB |
Output is correct |
| 66 |
Correct |
9 ms |
412 KB |
Output is correct |
| 67 |
Correct |
4 ms |
336 KB |
Output is correct |
| 68 |
Correct |
4 ms |
208 KB |
Output is correct |
| 69 |
Correct |
5 ms |
348 KB |
Output is correct |
| 70 |
Correct |
7 ms |
284 KB |
Output is correct |
| 71 |
Partially correct |
22 ms |
328 KB |
Partially correct - number of queries: 5259 |
| 72 |
Correct |
8 ms |
208 KB |
Output is correct |
| 73 |
Partially correct |
37 ms |
208 KB |
Partially correct - number of queries: 5196 |
| 74 |
Partially correct |
52 ms |
328 KB |
Partially correct - number of queries: 5223 |
| 75 |
Correct |
6 ms |
208 KB |
Output is correct |
| 76 |
Correct |
34 ms |
208 KB |
Output is correct |
| 77 |
Partially correct |
48 ms |
324 KB |
Partially correct - number of queries: 5259 |
| 78 |
Correct |
10 ms |
208 KB |
Output is correct |
| 79 |
Correct |
20 ms |
208 KB |
Output is correct |
| 80 |
Partially correct |
21 ms |
364 KB |
Partially correct - number of queries: 5259 |
| 81 |
Partially correct |
51 ms |
328 KB |
Partially correct - number of queries: 5259 |
| 82 |
Partially correct |
31 ms |
208 KB |
Partially correct - number of queries: 5204 |
| 83 |
Correct |
4 ms |
312 KB |
Output is correct |
| 84 |
Correct |
44 ms |
208 KB |
Output is correct |
| 85 |
Partially correct |
47 ms |
320 KB |
Partially correct - number of queries: 5229 |
| 86 |
Correct |
7 ms |
308 KB |
Output is correct |
| 87 |
Correct |
4 ms |
208 KB |
Output is correct |
| 88 |
Correct |
4 ms |
208 KB |
Output is correct |
| 89 |
Correct |
5 ms |
320 KB |
Output is correct |
| 90 |
Correct |
6 ms |
208 KB |
Output is correct |
| 91 |
Correct |
3 ms |
312 KB |
Output is correct |
| 92 |
Correct |
3 ms |
308 KB |
Output is correct |
| 93 |
Correct |
8 ms |
208 KB |
Output is correct |
| 94 |
Correct |
6 ms |
324 KB |
Output is correct |
| 95 |
Correct |
7 ms |
208 KB |
Output is correct |
| 96 |
Correct |
8 ms |
324 KB |
Output is correct |
| 97 |
Correct |
6 ms |
208 KB |
Output is correct |
