#include <bits/stdc++.h>
#include "prize.h"
using namespace std;
const int bont = 511;
int ert = 0;
int megold(int l, int r, vector<int> ansl, vector<int> ansr){
if(l+1 >= r) return -1;
int m1 = (l+r)/2;
int m2 = m1;
vector<int> ans = ask(m1);
if(ans[0] + ans[1] == 0) return m1;
vector<int> ans2 = ans;
while(m1-1 > l && ans[0]+ans[1] != ert){
m1--;
ans = ask(m1);
if(ans[0] + ans[1] == 0) return m1;
}
while(m2+1 < r && ans2[0]+ans2[1] != ert){
m2++;
ans2 = ask(m2);
if(ans2[0] + ans2[1] == 0) return m2;
}
return max((ansl[0] < ans[0] ? megold(l, m1, ansl, ans) : -1), (ans2[0] < ansr[0] ? megold(m2, r, ans2, ansr) : -1));
}
int find_best(int n) {
int s = 500;
for(int i = 0; i < min(n, 500); i++){
vector<int> ans = ask(i);
if(ans[0]+ans[1] == 0) return i;
ert = max(ert, ans[0]+ans[1]);
}
vector<int> ans = ask(s);
while(s < n){
if(ans[0]+ans[1] == 0)
return s;
while(ans[0]+ans[1] != ert){
s++;
ans = ask(s);
if(ans[0]+ans[1] == 0)
return s;
}
int e = min(s+bont, n-1);
int s2 = e+1;
vector<int> ans2 = ask(e);
if(ans2[0]+ans2[1] == 0)
return e;
while(s < e && ans2[0]+ans2[1] != ert){
e--;
ans2 = ask(e);
if(ans2[0]+ans2[1] == 0)
return e;
}
if(ans[0] < ans2[0]){
int temp = megold(s, e, ans, ans2);
if(temp != -1)
return temp;
}
s = s2;
if(e == s-1){
ans = ans2;
s--;
}
}
return -1;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
200 KB |
Output is correct |
| 2 |
Correct |
11 ms |
284 KB |
Output is correct |
| 3 |
Correct |
10 ms |
200 KB |
Output is correct |
| 4 |
Correct |
13 ms |
200 KB |
Output is correct |
| 5 |
Correct |
11 ms |
280 KB |
Output is correct |
| 6 |
Correct |
1 ms |
280 KB |
Output is correct |
| 7 |
Correct |
8 ms |
200 KB |
Output is correct |
| 8 |
Correct |
6 ms |
200 KB |
Output is correct |
| 9 |
Correct |
5 ms |
328 KB |
Output is correct |
| 10 |
Correct |
8 ms |
200 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
264 KB |
Output is correct |
| 2 |
Correct |
11 ms |
264 KB |
Output is correct |
| 3 |
Correct |
8 ms |
264 KB |
Output is correct |
| 4 |
Correct |
6 ms |
288 KB |
Output is correct |
| 5 |
Correct |
10 ms |
200 KB |
Output is correct |
| 6 |
Correct |
1 ms |
200 KB |
Output is correct |
| 7 |
Correct |
7 ms |
200 KB |
Output is correct |
| 8 |
Correct |
12 ms |
284 KB |
Output is correct |
| 9 |
Correct |
10 ms |
280 KB |
Output is correct |
| 10 |
Correct |
16 ms |
200 KB |
Output is correct |
| 11 |
Correct |
10 ms |
200 KB |
Output is correct |
| 12 |
Correct |
6 ms |
200 KB |
Output is correct |
| 13 |
Correct |
8 ms |
200 KB |
Output is correct |
| 14 |
Correct |
9 ms |
200 KB |
Output is correct |
| 15 |
Correct |
12 ms |
284 KB |
Output is correct |
| 16 |
Correct |
54 ms |
280 KB |
Output is correct |
| 17 |
Correct |
6 ms |
200 KB |
Output is correct |
| 18 |
Partially correct |
58 ms |
200 KB |
Partially correct - number of queries: 5060 |
| 19 |
Correct |
4 ms |
200 KB |
Output is correct |
| 20 |
Correct |
16 ms |
284 KB |
Output is correct |
| 21 |
Correct |
24 ms |
200 KB |
Output is correct |
| 22 |
Correct |
9 ms |
200 KB |
Output is correct |
| 23 |
Correct |
9 ms |
200 KB |
Output is correct |
| 24 |
Correct |
3 ms |
260 KB |
Output is correct |
| 25 |
Correct |
25 ms |
200 KB |
Output is correct |
| 26 |
Correct |
29 ms |
200 KB |
Output is correct |
| 27 |
Correct |
9 ms |
200 KB |
Output is correct |
| 28 |
Correct |
57 ms |
200 KB |
Output is correct |
| 29 |
Correct |
47 ms |
284 KB |
Output is correct |
| 30 |
Partially correct |
35 ms |
284 KB |
Partially correct - number of queries: 5025 |
| 31 |
Correct |
6 ms |
264 KB |
Output is correct |
| 32 |
Correct |
15 ms |
200 KB |
Output is correct |
| 33 |
Correct |
1 ms |
200 KB |
Output is correct |
| 34 |
Correct |
24 ms |
284 KB |
Output is correct |
| 35 |
Correct |
5 ms |
284 KB |
Output is correct |
| 36 |
Correct |
14 ms |
200 KB |
Output is correct |
| 37 |
Correct |
8 ms |
200 KB |
Output is correct |
| 38 |
Correct |
6 ms |
200 KB |
Output is correct |
| 39 |
Correct |
20 ms |
200 KB |
Output is correct |
| 40 |
Correct |
44 ms |
200 KB |
Output is correct |
| 41 |
Correct |
36 ms |
280 KB |
Output is correct |
| 42 |
Correct |
34 ms |
284 KB |
Output is correct |
| 43 |
Correct |
14 ms |
272 KB |
Output is correct |
| 44 |
Correct |
11 ms |
280 KB |
Output is correct |
| 45 |
Correct |
23 ms |
200 KB |
Output is correct |
| 46 |
Correct |
6 ms |
280 KB |
Output is correct |
| 47 |
Correct |
32 ms |
264 KB |
Output is correct |
| 48 |
Correct |
52 ms |
200 KB |
Output is correct |
| 49 |
Correct |
5 ms |
284 KB |
Output is correct |
| 50 |
Partially correct |
61 ms |
200 KB |
Partially correct - number of queries: 5039 |
| 51 |
Correct |
31 ms |
288 KB |
Output is correct |
| 52 |
Correct |
3 ms |
272 KB |
Output is correct |
| 53 |
Correct |
12 ms |
200 KB |
Output is correct |
| 54 |
Correct |
27 ms |
200 KB |
Output is correct |
| 55 |
Correct |
3 ms |
284 KB |
Output is correct |
| 56 |
Partially correct |
45 ms |
280 KB |
Partially correct - number of queries: 5026 |
| 57 |
Correct |
39 ms |
200 KB |
Output is correct |
| 58 |
Correct |
22 ms |
276 KB |
Output is correct |
| 59 |
Correct |
15 ms |
272 KB |
Output is correct |
| 60 |
Correct |
38 ms |
280 KB |
Output is correct |
| 61 |
Correct |
13 ms |
200 KB |
Output is correct |
| 62 |
Correct |
6 ms |
200 KB |
Output is correct |
| 63 |
Correct |
13 ms |
284 KB |
Output is correct |
| 64 |
Correct |
10 ms |
200 KB |
Output is correct |
| 65 |
Correct |
12 ms |
200 KB |
Output is correct |
| 66 |
Correct |
8 ms |
264 KB |
Output is correct |
| 67 |
Correct |
6 ms |
280 KB |
Output is correct |
| 68 |
Correct |
6 ms |
288 KB |
Output is correct |
| 69 |
Correct |
14 ms |
200 KB |
Output is correct |
| 70 |
Correct |
5 ms |
320 KB |
Output is correct |
| 71 |
Partially correct |
43 ms |
200 KB |
Partially correct - number of queries: 5058 |
| 72 |
Correct |
14 ms |
200 KB |
Output is correct |
| 73 |
Partially correct |
45 ms |
200 KB |
Partially correct - number of queries: 5002 |
| 74 |
Partially correct |
42 ms |
200 KB |
Partially correct - number of queries: 5026 |
| 75 |
Correct |
16 ms |
200 KB |
Output is correct |
| 76 |
Correct |
65 ms |
200 KB |
Output is correct |
| 77 |
Partially correct |
63 ms |
200 KB |
Partially correct - number of queries: 5063 |
| 78 |
Correct |
10 ms |
200 KB |
Output is correct |
| 79 |
Correct |
22 ms |
200 KB |
Output is correct |
| 80 |
Partially correct |
63 ms |
200 KB |
Partially correct - number of queries: 5058 |
| 81 |
Partially correct |
57 ms |
200 KB |
Partially correct - number of queries: 5070 |
| 82 |
Correct |
45 ms |
200 KB |
Output is correct |
| 83 |
Correct |
9 ms |
200 KB |
Output is correct |
| 84 |
Correct |
35 ms |
200 KB |
Output is correct |
| 85 |
Partially correct |
53 ms |
200 KB |
Partially correct - number of queries: 5054 |
| 86 |
Correct |
5 ms |
284 KB |
Output is correct |
| 87 |
Correct |
9 ms |
200 KB |
Output is correct |
| 88 |
Correct |
6 ms |
328 KB |
Output is correct |
| 89 |
Correct |
9 ms |
200 KB |
Output is correct |
| 90 |
Correct |
7 ms |
200 KB |
Output is correct |
| 91 |
Correct |
11 ms |
200 KB |
Output is correct |
| 92 |
Correct |
12 ms |
200 KB |
Output is correct |
| 93 |
Correct |
14 ms |
200 KB |
Output is correct |
| 94 |
Correct |
13 ms |
200 KB |
Output is correct |
| 95 |
Correct |
14 ms |
200 KB |
Output is correct |
| 96 |
Correct |
10 ms |
200 KB |
Output is correct |
| 97 |
Correct |
12 ms |
200 KB |
Output is correct |
