#include "prize.h"
#include <vector>
#include <algorithm>
using namespace std;
int m, res;
bool flag = false;
void solve(int l, int r, int num, int bef){
if(num == 0) return;
if(l > r) return;
int mid = (l+r)/2;
vector<int> resp = ask(mid);
if(resp[0]+resp[1] == 0){
res = mid;
flag = true;
return;
}
int b = mid;
while(resp[0]+resp[1] != m && b < r){
b++;
resp = ask(b);
if(resp[0]+resp[1] == 0){
res = b;
flag = true;
return;
}
}
if(resp[0]+resp[1] == m){
solve(l, mid-1, resp[0]-(b-mid)-bef, bef);
if(flag) return;
solve(b+1, r, num-(resp[0]-bef), resp[0]);
if(flag) return;
} else{
solve(l, mid-1, num, bef);
}
return;
}
int find_best(int n) {
if(n <= 5000){
for(int i=0; i<n; i++){
vector<int> resp = ask(i);
if(resp[0]+resp[1] == 0) return i;
}
}
vector<int> resp;
int cnt=0;
for(int i=0; i<500; i+=n/1000){
resp = ask(i);
if(resp[0]+resp[1] == 0) return i;
m = max(m, resp[0]+resp[1]);
}
solve(0, n-1, m, 0);
return res;
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:48:9: warning: unused variable 'cnt' [-Wunused-variable]
int cnt=0;
^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
484 KB |
Output is correct |
| 3 |
Correct |
2 ms |
532 KB |
Output is correct |
| 4 |
Correct |
2 ms |
532 KB |
Output is correct |
| 5 |
Correct |
2 ms |
532 KB |
Output is correct |
| 6 |
Correct |
2 ms |
652 KB |
Output is correct |
| 7 |
Correct |
2 ms |
652 KB |
Output is correct |
| 8 |
Correct |
2 ms |
652 KB |
Output is correct |
| 9 |
Correct |
2 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
652 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
652 KB |
Output is correct |
| 2 |
Correct |
2 ms |
652 KB |
Output is correct |
| 3 |
Correct |
2 ms |
652 KB |
Output is correct |
| 4 |
Correct |
3 ms |
652 KB |
Output is correct |
| 5 |
Correct |
2 ms |
652 KB |
Output is correct |
| 6 |
Correct |
2 ms |
652 KB |
Output is correct |
| 7 |
Correct |
2 ms |
652 KB |
Output is correct |
| 8 |
Correct |
2 ms |
652 KB |
Output is correct |
| 9 |
Correct |
4 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
652 KB |
Output is correct |
| 11 |
Correct |
3 ms |
652 KB |
Output is correct |
| 12 |
Correct |
2 ms |
652 KB |
Output is correct |
| 13 |
Correct |
7 ms |
652 KB |
Output is correct |
| 14 |
Correct |
4 ms |
652 KB |
Output is correct |
| 15 |
Correct |
5 ms |
652 KB |
Output is correct |
| 16 |
Correct |
35 ms |
652 KB |
Output is correct |
| 17 |
Correct |
2 ms |
652 KB |
Output is correct |
| 18 |
Correct |
51 ms |
652 KB |
Output is correct |
| 19 |
Correct |
2 ms |
652 KB |
Output is correct |
| 20 |
Correct |
8 ms |
652 KB |
Output is correct |
| 21 |
Correct |
18 ms |
652 KB |
Output is correct |
| 22 |
Correct |
3 ms |
652 KB |
Output is correct |
| 23 |
Correct |
2 ms |
652 KB |
Output is correct |
| 24 |
Correct |
2 ms |
652 KB |
Output is correct |
| 25 |
Correct |
23 ms |
652 KB |
Output is correct |
| 26 |
Correct |
25 ms |
652 KB |
Output is correct |
| 27 |
Correct |
3 ms |
652 KB |
Output is correct |
| 28 |
Correct |
37 ms |
652 KB |
Output is correct |
| 29 |
Correct |
29 ms |
652 KB |
Output is correct |
| 30 |
Correct |
42 ms |
652 KB |
Output is correct |
| 31 |
Correct |
2 ms |
652 KB |
Output is correct |
| 32 |
Correct |
5 ms |
652 KB |
Output is correct |
| 33 |
Correct |
2 ms |
652 KB |
Output is correct |
| 34 |
Correct |
7 ms |
652 KB |
Output is correct |
| 35 |
Correct |
2 ms |
652 KB |
Output is correct |
| 36 |
Correct |
12 ms |
652 KB |
Output is correct |
| 37 |
Correct |
4 ms |
652 KB |
Output is correct |
| 38 |
Correct |
2 ms |
652 KB |
Output is correct |
| 39 |
Correct |
10 ms |
652 KB |
Output is correct |
| 40 |
Correct |
27 ms |
652 KB |
Output is correct |
| 41 |
Correct |
24 ms |
652 KB |
Output is correct |
| 42 |
Correct |
33 ms |
652 KB |
Output is correct |
| 43 |
Correct |
31 ms |
652 KB |
Output is correct |
| 44 |
Correct |
18 ms |
652 KB |
Output is correct |
| 45 |
Correct |
12 ms |
652 KB |
Output is correct |
| 46 |
Correct |
2 ms |
652 KB |
Output is correct |
| 47 |
Correct |
18 ms |
652 KB |
Output is correct |
| 48 |
Correct |
38 ms |
652 KB |
Output is correct |
| 49 |
Correct |
3 ms |
652 KB |
Output is correct |
| 50 |
Correct |
45 ms |
652 KB |
Output is correct |
| 51 |
Correct |
19 ms |
652 KB |
Output is correct |
| 52 |
Correct |
3 ms |
652 KB |
Output is correct |
| 53 |
Correct |
3 ms |
652 KB |
Output is correct |
| 54 |
Correct |
18 ms |
652 KB |
Output is correct |
| 55 |
Correct |
2 ms |
652 KB |
Output is correct |
| 56 |
Correct |
41 ms |
652 KB |
Output is correct |
| 57 |
Correct |
15 ms |
652 KB |
Output is correct |
| 58 |
Correct |
31 ms |
652 KB |
Output is correct |
| 59 |
Correct |
26 ms |
652 KB |
Output is correct |
| 60 |
Correct |
24 ms |
652 KB |
Output is correct |
| 61 |
Correct |
2 ms |
652 KB |
Output is correct |
| 62 |
Correct |
2 ms |
652 KB |
Output is correct |
| 63 |
Correct |
2 ms |
652 KB |
Output is correct |
| 64 |
Correct |
2 ms |
652 KB |
Output is correct |
| 65 |
Correct |
2 ms |
652 KB |
Output is correct |
| 66 |
Correct |
6 ms |
652 KB |
Output is correct |
| 67 |
Correct |
4 ms |
652 KB |
Output is correct |
| 68 |
Incorrect |
88 ms |
652 KB |
Incorrect |
| 69 |
Halted |
0 ms |
0 KB |
- |
