#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
bool asked[200000] = {false};
int L[200000], R[200000];
int v, N;
bool Ask(int i)
{
if (asked[i]) return L[i] + R[i] == 0;
asked[i] = true;
vector<int> res = ask(i);
L[i] = res[0], R[i] = res[1];
return L[i] + R[i] == 0;
}
int Find(int l, int r)
{
if (Ask(l)) return l;
while (l < r && L[l] + R[l] != L[v] + R[v])
if (Ask(++l)) return l;
if (Ask(r)) return r;
while (l < r && L[r] + R[r] != L[v] + R[v])
if (Ask(--r)) return r;
int m = (l + r) / 2;
if (Ask(m)) return m;
if (L[r] - L[l] == 0) return -1;
int x = Find(l, m);
if (x >= 0) return x;
int y = Find(m, r);
if (y >= 0) return y;
return -1;
}
int find_best(int n)
{
N = n, v = 0;
for (int j = 0; j < n && j < 500; j++)
{
if (Ask(j)) return j;
if (L[j] + R[j] > L[v] + R[v])
v = j;
}
return Find(0, n - 1);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
336 KB |
Output is correct |
| 2 |
Correct |
4 ms |
432 KB |
Output is correct |
| 3 |
Correct |
2 ms |
324 KB |
Output is correct |
| 4 |
Correct |
2 ms |
320 KB |
Output is correct |
| 5 |
Correct |
2 ms |
316 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
3 ms |
320 KB |
Output is correct |
| 8 |
Correct |
2 ms |
328 KB |
Output is correct |
| 9 |
Correct |
2 ms |
328 KB |
Output is correct |
| 10 |
Correct |
4 ms |
448 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
300 KB |
Output is correct |
| 2 |
Correct |
4 ms |
328 KB |
Output is correct |
| 3 |
Correct |
2 ms |
324 KB |
Output is correct |
| 4 |
Correct |
4 ms |
208 KB |
Output is correct |
| 5 |
Correct |
4 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
2 ms |
324 KB |
Output is correct |
| 8 |
Correct |
5 ms |
320 KB |
Output is correct |
| 9 |
Correct |
2 ms |
320 KB |
Output is correct |
| 10 |
Correct |
3 ms |
464 KB |
Output is correct |
| 11 |
Correct |
7 ms |
944 KB |
Output is correct |
| 12 |
Correct |
2 ms |
324 KB |
Output is correct |
| 13 |
Correct |
6 ms |
1764 KB |
Output is correct |
| 14 |
Correct |
6 ms |
316 KB |
Output is correct |
| 15 |
Correct |
15 ms |
556 KB |
Output is correct |
| 16 |
Partially correct |
25 ms |
1740 KB |
Partially correct - number of queries: 7138 |
| 17 |
Correct |
3 ms |
208 KB |
Output is correct |
| 18 |
Partially correct |
72 ms |
1924 KB |
Partially correct - number of queries: 8467 |
| 19 |
Correct |
2 ms |
308 KB |
Output is correct |
| 20 |
Correct |
8 ms |
648 KB |
Output is correct |
| 21 |
Correct |
12 ms |
940 KB |
Output is correct |
| 22 |
Correct |
8 ms |
468 KB |
Output is correct |
| 23 |
Correct |
3 ms |
308 KB |
Output is correct |
| 24 |
Correct |
5 ms |
336 KB |
Output is correct |
| 25 |
Correct |
28 ms |
1248 KB |
Output is correct |
| 26 |
Correct |
15 ms |
1272 KB |
Output is correct |
| 27 |
Correct |
3 ms |
552 KB |
Output is correct |
| 28 |
Partially correct |
50 ms |
1992 KB |
Partially correct - number of queries: 7178 |
| 29 |
Partially correct |
36 ms |
1740 KB |
Partially correct - number of queries: 5808 |
| 30 |
Partially correct |
70 ms |
1920 KB |
Partially correct - number of queries: 8419 |
| 31 |
Correct |
2 ms |
324 KB |
Output is correct |
| 32 |
Correct |
4 ms |
1328 KB |
Output is correct |
| 33 |
Correct |
0 ms |
208 KB |
Output is correct |
| 34 |
Correct |
25 ms |
832 KB |
Output is correct |
| 35 |
Correct |
3 ms |
808 KB |
Output is correct |
| 36 |
Correct |
8 ms |
700 KB |
Output is correct |
| 37 |
Correct |
6 ms |
564 KB |
Output is correct |
| 38 |
Correct |
2 ms |
328 KB |
Output is correct |
| 39 |
Correct |
14 ms |
988 KB |
Output is correct |
| 40 |
Partially correct |
36 ms |
1932 KB |
Partially correct - number of queries: 7439 |
| 41 |
Partially correct |
18 ms |
1308 KB |
Partially correct - number of queries: 5030 |
| 42 |
Partially correct |
18 ms |
1304 KB |
Partially correct - number of queries: 5030 |
| 43 |
Correct |
23 ms |
1512 KB |
Output is correct |
| 44 |
Correct |
26 ms |
968 KB |
Output is correct |
| 45 |
Correct |
19 ms |
808 KB |
Output is correct |
| 46 |
Correct |
2 ms |
356 KB |
Output is correct |
| 47 |
Correct |
24 ms |
968 KB |
Output is correct |
| 48 |
Partially correct |
40 ms |
1588 KB |
Partially correct - number of queries: 6156 |
| 49 |
Correct |
10 ms |
456 KB |
Output is correct |
| 50 |
Partially correct |
29 ms |
2044 KB |
Partially correct - number of queries: 8489 |
| 51 |
Correct |
13 ms |
1024 KB |
Output is correct |
| 52 |
Correct |
5 ms |
304 KB |
Output is correct |
| 53 |
Correct |
6 ms |
960 KB |
Output is correct |
| 54 |
Correct |
15 ms |
1088 KB |
Output is correct |
| 55 |
Correct |
2 ms |
208 KB |
Output is correct |
| 56 |
Partially correct |
49 ms |
2024 KB |
Partially correct - number of queries: 8440 |
| 57 |
Partially correct |
22 ms |
1520 KB |
Partially correct - number of queries: 6112 |
| 58 |
Partially correct |
21 ms |
1548 KB |
Partially correct - number of queries: 6190 |
| 59 |
Partially correct |
24 ms |
1568 KB |
Partially correct - number of queries: 5024 |
| 60 |
Correct |
16 ms |
1272 KB |
Output is correct |
| 61 |
Correct |
5 ms |
964 KB |
Output is correct |
| 62 |
Correct |
2 ms |
336 KB |
Output is correct |
| 63 |
Correct |
5 ms |
976 KB |
Output is correct |
| 64 |
Correct |
4 ms |
756 KB |
Output is correct |
| 65 |
Correct |
2 ms |
324 KB |
Output is correct |
| 66 |
Correct |
6 ms |
304 KB |
Output is correct |
| 67 |
Correct |
9 ms |
308 KB |
Output is correct |
| 68 |
Correct |
4 ms |
208 KB |
Output is correct |
| 69 |
Correct |
2 ms |
324 KB |
Output is correct |
| 70 |
Correct |
5 ms |
304 KB |
Output is correct |
| 71 |
Partially correct |
77 ms |
2032 KB |
Partially correct - number of queries: 9073 |
| 72 |
Correct |
10 ms |
1732 KB |
Output is correct |
| 73 |
Partially correct |
57 ms |
1992 KB |
Partially correct - number of queries: 8961 |
| 74 |
Partially correct |
84 ms |
1932 KB |
Partially correct - number of queries: 9009 |
| 75 |
Correct |
6 ms |
976 KB |
Output is correct |
| 76 |
Partially correct |
67 ms |
2028 KB |
Partially correct - number of queries: 7921 |
| 77 |
Partially correct |
68 ms |
1948 KB |
Partially correct - number of queries: 8821 |
| 78 |
Correct |
9 ms |
1744 KB |
Output is correct |
| 79 |
Correct |
40 ms |
1972 KB |
Output is correct |
| 80 |
Partially correct |
75 ms |
1936 KB |
Partially correct - number of queries: 8741 |
| 81 |
Partially correct |
69 ms |
2036 KB |
Partially correct - number of queries: 8823 |
| 82 |
Partially correct |
42 ms |
1964 KB |
Partially correct - number of queries: 8733 |
| 83 |
Correct |
5 ms |
976 KB |
Output is correct |
| 84 |
Partially correct |
30 ms |
1976 KB |
Partially correct - number of queries: 7417 |
| 85 |
Partially correct |
43 ms |
2056 KB |
Partially correct - number of queries: 8784 |
| 86 |
Correct |
5 ms |
464 KB |
Output is correct |
| 87 |
Correct |
5 ms |
464 KB |
Output is correct |
| 88 |
Correct |
4 ms |
464 KB |
Output is correct |
| 89 |
Correct |
4 ms |
464 KB |
Output is correct |
| 90 |
Correct |
5 ms |
400 KB |
Output is correct |
| 91 |
Correct |
4 ms |
456 KB |
Output is correct |
| 92 |
Correct |
5 ms |
464 KB |
Output is correct |
| 93 |
Correct |
7 ms |
1220 KB |
Output is correct |
| 94 |
Correct |
10 ms |
1460 KB |
Output is correct |
| 95 |
Correct |
10 ms |
1352 KB |
Output is correct |
| 96 |
Correct |
9 ms |
1300 KB |
Output is correct |
| 97 |
Correct |
5 ms |
464 KB |
Output is correct |
