#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
#define pi pair<int,int>
#define f first
#define s second
const int MAX = 2e5;
int ans[MAX][2];
int a;
pi query(int pos){
if(ans[pos][0]!=-1) return {ans[pos][0], ans[pos][1]};
auto hold = ask(pos);
ans[pos][0] = hold[0];
ans[pos][1] = hold[1];
if(hold[0]+hold[1]==0){
a = pos;
}
return {hold[0],hold[1]};
}
int sum(int pos){
query(pos);
return ans[pos][0]+ ans[pos][1];
}
void solve(int l, int r){
if(a!=-1) return;
if(l==r){
query(l);
}
while(sum(l)!= sum(r)){
if(sum(l)< sum(r)) l++;
else r--;
}
if(ans[l][0]==ans[r][0]) return;
int m = (l+r)/2;
solve(l,m);
solve(m+1,r);
}
int find_best( int n ) {
if(n<5000){
for(int i = 0; i < n; i++){
auto j = ask(i);
if(j[0]+j[1]==0) return i;
}
}
for(int i = 0; i < n; i++){
ans[i][0]=-1;
}
a=-1;
solve(0,n-1);
return a;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 2 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 3 |
Correct |
2 ms |
1980 KB |
Output is correct |
| 4 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1876 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1880 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 2 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 3 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 4 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2036 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2136 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 13 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 14 |
Correct |
2 ms |
600 KB |
Output is correct |
| 15 |
Correct |
4 ms |
1972 KB |
Output is correct |
| 16 |
Partially correct |
35 ms |
1880 KB |
Partially correct - number of queries: 6197 |
| 17 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 18 |
Partially correct |
43 ms |
1964 KB |
Partially correct - number of queries: 7516 |
| 19 |
Correct |
1 ms |
1876 KB |
Output is correct |
| 20 |
Correct |
6 ms |
1112 KB |
Output is correct |
| 21 |
Correct |
11 ms |
2132 KB |
Output is correct |
| 22 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 25 |
Correct |
26 ms |
1880 KB |
Output is correct |
| 26 |
Correct |
14 ms |
1880 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 28 |
Partially correct |
28 ms |
1880 KB |
Partially correct - number of queries: 6453 |
| 29 |
Correct |
27 ms |
1880 KB |
Output is correct |
| 30 |
Partially correct |
37 ms |
1880 KB |
Partially correct - number of queries: 7471 |
| 31 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 32 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 33 |
Correct |
1 ms |
344 KB |
Output is correct |
| 34 |
Correct |
11 ms |
2136 KB |
Output is correct |
| 35 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 36 |
Correct |
9 ms |
1880 KB |
Output is correct |
| 37 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 38 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 39 |
Correct |
16 ms |
1880 KB |
Output is correct |
| 40 |
Partially correct |
29 ms |
1880 KB |
Partially correct - number of queries: 6509 |
| 41 |
Correct |
20 ms |
1880 KB |
Output is correct |
| 42 |
Correct |
20 ms |
1880 KB |
Output is correct |
| 43 |
Correct |
18 ms |
1880 KB |
Output is correct |
| 44 |
Correct |
13 ms |
1880 KB |
Output is correct |
| 45 |
Correct |
8 ms |
1880 KB |
Output is correct |
| 46 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 47 |
Correct |
12 ms |
1880 KB |
Output is correct |
| 48 |
Partially correct |
30 ms |
1880 KB |
Partially correct - number of queries: 5341 |
| 49 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 50 |
Partially correct |
40 ms |
1880 KB |
Partially correct - number of queries: 7475 |
| 51 |
Correct |
13 ms |
1880 KB |
Output is correct |
| 52 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 53 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 54 |
Correct |
16 ms |
2136 KB |
Output is correct |
| 55 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 56 |
Partially correct |
45 ms |
1880 KB |
Partially correct - number of queries: 7563 |
| 57 |
Partially correct |
26 ms |
1880 KB |
Partially correct - number of queries: 5315 |
| 58 |
Partially correct |
27 ms |
1880 KB |
Partially correct - number of queries: 5374 |
| 59 |
Correct |
32 ms |
1880 KB |
Output is correct |
| 60 |
Correct |
22 ms |
1880 KB |
Output is correct |
| 61 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 62 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 63 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 64 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 65 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 66 |
Correct |
2 ms |
2136 KB |
Output is correct |
| 67 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 68 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 69 |
Correct |
3 ms |
1972 KB |
Output is correct |
| 70 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 71 |
Partially correct |
45 ms |
1880 KB |
Partially correct - number of queries: 8104 |
| 72 |
Correct |
6 ms |
1880 KB |
Output is correct |
| 73 |
Partially correct |
37 ms |
1880 KB |
Partially correct - number of queries: 7999 |
| 74 |
Partially correct |
40 ms |
2132 KB |
Partially correct - number of queries: 8044 |
| 75 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 76 |
Partially correct |
37 ms |
1880 KB |
Partially correct - number of queries: 7024 |
| 77 |
Partially correct |
33 ms |
1880 KB |
Partially correct - number of queries: 7264 |
| 78 |
Correct |
5 ms |
1880 KB |
Output is correct |
| 79 |
Correct |
16 ms |
1880 KB |
Output is correct |
| 80 |
Partially correct |
43 ms |
1880 KB |
Partially correct - number of queries: 7326 |
| 81 |
Partially correct |
39 ms |
1880 KB |
Partially correct - number of queries: 7196 |
| 82 |
Partially correct |
37 ms |
1880 KB |
Partially correct - number of queries: 7258 |
| 83 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 84 |
Partially correct |
33 ms |
1880 KB |
Partially correct - number of queries: 6078 |
| 85 |
Partially correct |
32 ms |
1880 KB |
Partially correct - number of queries: 7270 |
| 86 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 87 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 88 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 89 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 90 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 91 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 92 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 93 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 94 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 95 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 96 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 97 |
Correct |
1 ms |
1880 KB |
Output is correct |
