#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
#define bug(x) cout << #x << " " << x << endl;
#define pii pair<int, int>
map<int, pii> mp;
pii query( int id ){
if( mp.count(id) ) return mp[id];
vector<int> resp = ask(id);
return (mp[id] = pii(resp[0], resp[1]));
}
int solve( int ini, int fim ){
if( query(ini).first + query(ini).second == 0 ) return ini;
if( query(fim).first + query(fim).second == 0 ) return fim;
if( query(fim).first == 0 || query(ini).second == 0 ) return -1;
if( query(ini) == query(fim) ) return (( query(ini).first + query(ini).second == 0 ) ? ini : -1 );
int mid = (ini + fim)/2;
if( rand()%2 ){
int aux = solve( ini, mid );
if( aux != -1 ) return aux;
if( fim - ini == 1 ) return solve( fim, fim );
return solve( mid, fim );
}
else{
if( fim - ini == 1 ) return solve( fim, fim );
int aux = solve( mid, fim );
if( aux != -1 ) return aux;
return solve( ini, mid );
}
}
int find_best(int n) {
srand(time(0));
return solve( 0, n - 1 );
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
504 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 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 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 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 |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
684 KB |
Output is correct |
| 12 |
Correct |
1 ms |
344 KB |
Output is correct |
| 13 |
Correct |
4 ms |
444 KB |
Output is correct |
| 14 |
Correct |
1 ms |
344 KB |
Output is correct |
| 15 |
Correct |
22 ms |
692 KB |
Output is correct |
| 16 |
Correct |
6 ms |
344 KB |
Output is correct |
| 17 |
Correct |
22 ms |
756 KB |
Output is correct |
| 18 |
Correct |
4 ms |
344 KB |
Output is correct |
| 19 |
Correct |
20 ms |
600 KB |
Output is correct |
| 20 |
Correct |
17 ms |
344 KB |
Output is correct |
| 21 |
Correct |
17 ms |
592 KB |
Output is correct |
| 22 |
Correct |
22 ms |
440 KB |
Output is correct |
| 23 |
Correct |
1 ms |
344 KB |
Output is correct |
| 24 |
Correct |
1 ms |
344 KB |
Output is correct |
| 25 |
Correct |
11 ms |
344 KB |
Output is correct |
| 26 |
Correct |
11 ms |
484 KB |
Output is correct |
| 27 |
Correct |
1 ms |
344 KB |
Output is correct |
| 28 |
Correct |
16 ms |
844 KB |
Output is correct |
| 29 |
Correct |
18 ms |
588 KB |
Output is correct |
| 30 |
Correct |
38 ms |
716 KB |
Output is correct |
| 31 |
Correct |
10 ms |
636 KB |
Output is correct |
| 32 |
Correct |
3 ms |
344 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
20 ms |
428 KB |
Output is correct |
| 35 |
Correct |
1 ms |
344 KB |
Output is correct |
| 36 |
Correct |
26 ms |
1356 KB |
Output is correct |
| 37 |
Correct |
2 ms |
344 KB |
Output is correct |
| 38 |
Correct |
1 ms |
344 KB |
Output is correct |
| 39 |
Correct |
35 ms |
692 KB |
Output is correct |
| 40 |
Correct |
25 ms |
1112 KB |
Output is correct |
| 41 |
Partially correct |
36 ms |
916 KB |
Partially correct - number of queries: 5052 |
| 42 |
Partially correct |
28 ms |
936 KB |
Partially correct - number of queries: 5052 |
| 43 |
Correct |
26 ms |
732 KB |
Output is correct |
| 44 |
Correct |
10 ms |
600 KB |
Output is correct |
| 45 |
Correct |
11 ms |
460 KB |
Output is correct |
| 46 |
Correct |
7 ms |
484 KB |
Output is correct |
| 47 |
Correct |
14 ms |
712 KB |
Output is correct |
| 48 |
Correct |
22 ms |
604 KB |
Output is correct |
| 49 |
Correct |
5 ms |
476 KB |
Output is correct |
| 50 |
Correct |
16 ms |
600 KB |
Output is correct |
| 51 |
Correct |
23 ms |
456 KB |
Output is correct |
| 52 |
Correct |
17 ms |
600 KB |
Output is correct |
| 53 |
Correct |
1 ms |
344 KB |
Output is correct |
| 54 |
Correct |
20 ms |
724 KB |
Output is correct |
| 55 |
Correct |
27 ms |
492 KB |
Output is correct |
| 56 |
Correct |
1 ms |
344 KB |
Output is correct |
| 57 |
Correct |
9 ms |
600 KB |
Output is correct |
| 58 |
Correct |
12 ms |
600 KB |
Output is correct |
| 59 |
Correct |
11 ms |
344 KB |
Output is correct |
| 60 |
Correct |
13 ms |
716 KB |
Output is correct |
| 61 |
Correct |
1 ms |
344 KB |
Output is correct |
| 62 |
Correct |
1 ms |
428 KB |
Output is correct |
| 63 |
Correct |
1 ms |
344 KB |
Output is correct |
| 64 |
Correct |
1 ms |
344 KB |
Output is correct |
| 65 |
Correct |
1 ms |
344 KB |
Output is correct |
| 66 |
Correct |
0 ms |
344 KB |
Output is correct |
| 67 |
Correct |
1 ms |
344 KB |
Output is correct |
| 68 |
Correct |
0 ms |
344 KB |
Output is correct |
| 69 |
Correct |
1 ms |
344 KB |
Output is correct |
| 70 |
Correct |
1 ms |
340 KB |
Output is correct |
| 71 |
Correct |
28 ms |
844 KB |
Output is correct |
| 72 |
Correct |
3 ms |
452 KB |
Output is correct |
| 73 |
Correct |
31 ms |
888 KB |
Output is correct |
| 74 |
Correct |
34 ms |
808 KB |
Output is correct |
| 75 |
Correct |
1 ms |
344 KB |
Output is correct |
| 76 |
Correct |
22 ms |
592 KB |
Output is correct |
| 77 |
Correct |
27 ms |
556 KB |
Output is correct |
| 78 |
Correct |
3 ms |
344 KB |
Output is correct |
| 79 |
Correct |
16 ms |
344 KB |
Output is correct |
| 80 |
Correct |
25 ms |
676 KB |
Output is correct |
| 81 |
Partially correct |
41 ms |
744 KB |
Partially correct - number of queries: 5181 |
| 82 |
Partially correct |
36 ms |
780 KB |
Partially correct - number of queries: 5167 |
| 83 |
Correct |
1 ms |
600 KB |
Output is correct |
| 84 |
Correct |
23 ms |
600 KB |
Output is correct |
| 85 |
Partially correct |
27 ms |
592 KB |
Partially correct - number of queries: 5121 |
| 86 |
Correct |
5 ms |
600 KB |
Output is correct |
| 87 |
Correct |
2 ms |
344 KB |
Output is correct |
| 88 |
Correct |
3 ms |
600 KB |
Output is correct |
| 89 |
Correct |
3 ms |
600 KB |
Output is correct |
| 90 |
Correct |
1 ms |
344 KB |
Output is correct |
| 91 |
Correct |
2 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 |
3 ms |
600 KB |
Output is correct |
| 96 |
Correct |
3 ms |
344 KB |
Output is correct |
| 97 |
Correct |
1 ms |
344 KB |
Output is correct |
