#include "prize.h"
#include <stdio.h>
#include <vector>
#include <algorithm>
int L[200005], R[200005];
int V[200005];
int min(int a, int b)
{
return (a < b)?a:b;
}
int max(int a, int b)
{
return (a > b)?a:b;
}
int find_best(int n) {
int i, j;
for (i = 0; i < n; i++)
L[i] = -1;
int mn, md, mx;
//first sig
std::vector<int> r;
r = ask(0);
L[0] = r[0];
R[0] = r[1];
if (R[0] == 0)
return 0;
r = ask(n - 1);
L[n - 1] = r[0];
R[n - 1] = r[1];
if (L[n - 1] == 0)
return n - 1;
int sigl = 0, sigr = n - 1;
while (sigl < sigr)
{
for (i = 0; i < 2; i++)
{
for (j = sigr; j > sigl; j--)
if (L[j] != -1 && L[j] != L[sigr] && R[j] != R[sigr])
break;
mn = j;
mx = sigr;
while (mx != mn)
{
if (mx - mn == 1)
{
sigr = mn;
break;
}
md = (mn + mx)/2;
if (L[md] == -1)
{
r = ask(md);
L[md] = r[0];
R[md] = r[1];
}
if (L[md] == 0 && R[md] == 0)
return md;
if (L[md] == L[sigr] && R[md] == R[sigr])
mx = md;
else
mn = md;
}
if (L[sigr] == -1)
{
r = ask(sigr);
L[sigr] = r[0];
R[sigr] = r[1];
}
if (L[sigr] == 0 && R[sigr] == 0)
return sigr;
}
// printf("sigl %d sigr %d\n", sigl, sigr);
for (i = 0; i < 2; i++)
{
for (j = sigl; j < sigr; j++)
if (L[j] != -1 && L[j] != L[sigr] && R[j] != R[sigr])
break;
mn = sigl;
mx = j;
while (mx != mn)
{
if (mx - mn == 1)
{
sigl = mx;
break;
}
md = (mn + mx)/2;
if (L[md] == -1)
{
r = ask(md);
L[md] = r[0];
R[md] = r[1];
}
if (L[md] == 0 && R[md] == 0)
return md;
if (L[md] == L[sigl] && R[md] == R[sigl])
mn = md;
else
mx = md;
}
if (L[sigl] == -1)
{
r = ask(sigl);
L[sigl] = r[0];
R[sigl] = r[1];
}
if (L[sigl] == 0 && R[sigl] == 0)
return sigl;
}
}
if (sigl == sigr)
return sigl;
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:113:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 8 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 2 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 4 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 10 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 11 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 14 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4364 KB |
Output is correct |
| 16 |
Correct |
11 ms |
4364 KB |
Output is correct |
| 17 |
Partially correct |
15 ms |
4364 KB |
Partially correct - number of queries: 5309 |
| 18 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 19 |
Correct |
9 ms |
4364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 21 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 22 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 23 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 24 |
Correct |
4 ms |
4364 KB |
Output is correct |
| 25 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 26 |
Correct |
6 ms |
4364 KB |
Output is correct |
| 27 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 28 |
Correct |
3 ms |
4364 KB |
Output is correct |
| 29 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 30 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 31 |
Partially correct |
15 ms |
4364 KB |
Partially correct - number of queries: 5249 |
| 32 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 33 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 34 |
Correct |
15 ms |
4364 KB |
Output is correct |
| 35 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 36 |
Correct |
13 ms |
4364 KB |
Output is correct |
| 37 |
Correct |
6 ms |
4364 KB |
Output is correct |
| 38 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 39 |
Correct |
13 ms |
4364 KB |
Output is correct |
| 40 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 41 |
Correct |
6 ms |
4364 KB |
Output is correct |
| 42 |
Correct |
8 ms |
4364 KB |
Output is correct |
| 43 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 44 |
Correct |
17 ms |
4364 KB |
Output is correct |
| 45 |
Correct |
11 ms |
4364 KB |
Output is correct |
| 46 |
Partially correct |
0 ms |
4364 KB |
Partially correct - number of queries: 5279 |
| 47 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 48 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 49 |
Correct |
3 ms |
4364 KB |
Output is correct |
| 50 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 51 |
Correct |
4 ms |
4364 KB |
Output is correct |
| 52 |
Partially correct |
14 ms |
4364 KB |
Partially correct - number of queries: 5237 |
| 53 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 54 |
Correct |
15 ms |
4364 KB |
Output is correct |
| 55 |
Partially correct |
10 ms |
4364 KB |
Partially correct - number of queries: 5053 |
| 56 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 57 |
Correct |
9 ms |
4364 KB |
Output is correct |
| 58 |
Correct |
3 ms |
4364 KB |
Output is correct |
| 59 |
Correct |
16 ms |
4364 KB |
Output is correct |
| 60 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 61 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 62 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 63 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 64 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 65 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 66 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 67 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 68 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 69 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 70 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 71 |
Partially correct |
7 ms |
4364 KB |
Partially correct - number of queries: 5169 |
| 72 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 73 |
Partially correct |
18 ms |
4364 KB |
Partially correct - number of queries: 5095 |
| 74 |
Partially correct |
13 ms |
4364 KB |
Partially correct - number of queries: 5120 |
| 75 |
Correct |
3 ms |
4364 KB |
Output is correct |
| 76 |
Correct |
9 ms |
4364 KB |
Output is correct |
| 77 |
Partially correct |
9 ms |
4364 KB |
Partially correct - number of queries: 5493 |
| 78 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 79 |
Correct |
8 ms |
4364 KB |
Output is correct |
| 80 |
Partially correct |
8 ms |
4364 KB |
Partially correct - number of queries: 5570 |
| 81 |
Partially correct |
5 ms |
4364 KB |
Partially correct - number of queries: 5480 |
| 82 |
Partially correct |
8 ms |
4364 KB |
Partially correct - number of queries: 5468 |
| 83 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 84 |
Correct |
13 ms |
4364 KB |
Output is correct |
| 85 |
Partially correct |
17 ms |
4364 KB |
Partially correct - number of queries: 5535 |
| 86 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 87 |
Correct |
9 ms |
4364 KB |
Output is correct |
| 88 |
Correct |
5 ms |
4364 KB |
Output is correct |
| 89 |
Correct |
3 ms |
4364 KB |
Output is correct |
| 90 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 91 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 92 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 93 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 94 |
Correct |
2 ms |
4364 KB |
Output is correct |
| 95 |
Correct |
1 ms |
4364 KB |
Output is correct |
| 96 |
Correct |
0 ms |
4364 KB |
Output is correct |
| 97 |
Correct |
1 ms |
4364 KB |
Output is correct |
