#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5+1;
int total;
int n;
vector<int> vec;
int get_next(int pos) {
int l = log2(n-1 - pos);
int p = pos;
auto Ask = ask(p+1);
if(Ask[0] + Ask[1] != total) {
return p+1;
}
int pref = Ask[0];
int l1 = min(max(1, l-3), 9);
auto check = ask(p+(1<<(l1)));
if(check[0] + check[1] != total || check[0] - pref != 0) {
l = l1;
}
for(int i=l; i>=0; --i) {
if(p+(1<<i)>=n) continue;
auto res = ask(p + (1<<i));
if(res[0] - pref==0 && res[0]+res[1]==total) {
p+= (1<<i);
}
}
p++;
return p;
}
int find_best(int N) {
n = N;
int pos = -1;
for(int i=0; i<min(n, 500); ++i) {
auto res = ask(i);
if(i!=0 && res[0] + res[1] > total) {
total = res[0] + res[1];
pos = i-1;
}
if(res[0] + res[1]==0) return i;
if(res[0] + res[1] < total) pos = i;
}
while(true) {
pos = get_next(pos);
auto Ask = ask(pos);
if(Ask[0] + Ask[1] == 0) return pos;
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
384 KB |
Output is correct |
| 2 |
Correct |
9 ms |
256 KB |
Output is correct |
| 3 |
Correct |
7 ms |
512 KB |
Output is correct |
| 4 |
Correct |
9 ms |
256 KB |
Output is correct |
| 5 |
Correct |
8 ms |
256 KB |
Output is correct |
| 6 |
Correct |
5 ms |
256 KB |
Output is correct |
| 7 |
Correct |
9 ms |
256 KB |
Output is correct |
| 8 |
Correct |
11 ms |
384 KB |
Output is correct |
| 9 |
Correct |
10 ms |
256 KB |
Output is correct |
| 10 |
Correct |
9 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
384 KB |
Output is correct |
| 2 |
Correct |
8 ms |
368 KB |
Output is correct |
| 3 |
Correct |
10 ms |
384 KB |
Output is correct |
| 4 |
Correct |
7 ms |
376 KB |
Output is correct |
| 5 |
Correct |
8 ms |
256 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
8 ms |
256 KB |
Output is correct |
| 8 |
Correct |
9 ms |
256 KB |
Output is correct |
| 9 |
Correct |
8 ms |
256 KB |
Output is correct |
| 10 |
Correct |
9 ms |
256 KB |
Output is correct |
| 11 |
Correct |
9 ms |
256 KB |
Output is correct |
| 12 |
Correct |
7 ms |
376 KB |
Output is correct |
| 13 |
Correct |
12 ms |
256 KB |
Output is correct |
| 14 |
Correct |
14 ms |
384 KB |
Output is correct |
| 15 |
Correct |
18 ms |
256 KB |
Output is correct |
| 16 |
Partially correct |
46 ms |
256 KB |
Partially correct - number of queries: 5570 |
| 17 |
Correct |
8 ms |
256 KB |
Output is correct |
| 18 |
Partially correct |
65 ms |
256 KB |
Partially correct - number of queries: 6635 |
| 19 |
Correct |
7 ms |
384 KB |
Output is correct |
| 20 |
Correct |
22 ms |
256 KB |
Output is correct |
| 21 |
Correct |
32 ms |
256 KB |
Output is correct |
| 22 |
Correct |
10 ms |
376 KB |
Output is correct |
| 23 |
Correct |
9 ms |
256 KB |
Output is correct |
| 24 |
Correct |
9 ms |
256 KB |
Output is correct |
| 25 |
Correct |
42 ms |
256 KB |
Output is correct |
| 26 |
Correct |
39 ms |
256 KB |
Output is correct |
| 27 |
Correct |
8 ms |
384 KB |
Output is correct |
| 28 |
Partially correct |
68 ms |
256 KB |
Partially correct - number of queries: 7199 |
| 29 |
Partially correct |
49 ms |
384 KB |
Partially correct - number of queries: 5696 |
| 30 |
Partially correct |
54 ms |
256 KB |
Partially correct - number of queries: 6583 |
| 31 |
Correct |
11 ms |
256 KB |
Output is correct |
| 32 |
Correct |
13 ms |
256 KB |
Output is correct |
| 33 |
Correct |
4 ms |
256 KB |
Output is correct |
| 34 |
Correct |
23 ms |
256 KB |
Output is correct |
| 35 |
Correct |
10 ms |
256 KB |
Output is correct |
| 36 |
Correct |
28 ms |
256 KB |
Output is correct |
| 37 |
Correct |
8 ms |
376 KB |
Output is correct |
| 38 |
Correct |
11 ms |
256 KB |
Output is correct |
| 39 |
Correct |
27 ms |
256 KB |
Output is correct |
| 40 |
Partially correct |
56 ms |
364 KB |
Partially correct - number of queries: 5697 |
| 41 |
Correct |
25 ms |
376 KB |
Output is correct |
| 42 |
Correct |
40 ms |
256 KB |
Output is correct |
| 43 |
Correct |
35 ms |
256 KB |
Output is correct |
| 44 |
Correct |
28 ms |
384 KB |
Output is correct |
| 45 |
Correct |
29 ms |
256 KB |
Output is correct |
| 46 |
Correct |
8 ms |
256 KB |
Output is correct |
| 47 |
Correct |
21 ms |
372 KB |
Output is correct |
| 48 |
Correct |
32 ms |
384 KB |
Output is correct |
| 49 |
Correct |
11 ms |
256 KB |
Output is correct |
| 50 |
Partially correct |
61 ms |
256 KB |
Partially correct - number of queries: 6635 |
| 51 |
Correct |
29 ms |
256 KB |
Output is correct |
| 52 |
Correct |
10 ms |
256 KB |
Output is correct |
| 53 |
Correct |
10 ms |
384 KB |
Output is correct |
| 54 |
Correct |
18 ms |
376 KB |
Output is correct |
| 55 |
Correct |
7 ms |
384 KB |
Output is correct |
| 56 |
Partially correct |
58 ms |
256 KB |
Partially correct - number of queries: 6635 |
| 57 |
Correct |
43 ms |
256 KB |
Output is correct |
| 58 |
Correct |
29 ms |
384 KB |
Output is correct |
| 59 |
Correct |
34 ms |
256 KB |
Output is correct |
| 60 |
Correct |
34 ms |
256 KB |
Output is correct |
| 61 |
Correct |
10 ms |
256 KB |
Output is correct |
| 62 |
Correct |
9 ms |
364 KB |
Output is correct |
| 63 |
Correct |
10 ms |
256 KB |
Output is correct |
| 64 |
Correct |
10 ms |
256 KB |
Output is correct |
| 65 |
Correct |
9 ms |
256 KB |
Output is correct |
| 66 |
Correct |
18 ms |
364 KB |
Output is correct |
| 67 |
Correct |
11 ms |
256 KB |
Output is correct |
| 68 |
Correct |
9 ms |
256 KB |
Output is correct |
| 69 |
Correct |
17 ms |
256 KB |
Output is correct |
| 70 |
Correct |
9 ms |
256 KB |
Output is correct |
| 71 |
Partially correct |
36 ms |
256 KB |
Partially correct - number of queries: 6654 |
| 72 |
Correct |
10 ms |
256 KB |
Output is correct |
| 73 |
Partially correct |
57 ms |
256 KB |
Partially correct - number of queries: 6563 |
| 74 |
Partially correct |
52 ms |
256 KB |
Partially correct - number of queries: 6602 |
| 75 |
Correct |
8 ms |
256 KB |
Output is correct |
| 76 |
Partially correct |
47 ms |
384 KB |
Partially correct - number of queries: 5705 |
| 77 |
Partially correct |
64 ms |
384 KB |
Partially correct - number of queries: 6654 |
| 78 |
Correct |
15 ms |
384 KB |
Output is correct |
| 79 |
Correct |
43 ms |
256 KB |
Output is correct |
| 80 |
Partially correct |
55 ms |
384 KB |
Partially correct - number of queries: 6653 |
| 81 |
Partially correct |
57 ms |
384 KB |
Partially correct - number of queries: 6653 |
| 82 |
Partially correct |
35 ms |
384 KB |
Partially correct - number of queries: 6583 |
| 83 |
Correct |
11 ms |
256 KB |
Output is correct |
| 84 |
Partially correct |
47 ms |
384 KB |
Partially correct - number of queries: 5730 |
| 85 |
Partially correct |
67 ms |
256 KB |
Partially correct - number of queries: 6603 |
| 86 |
Correct |
8 ms |
256 KB |
Output is correct |
| 87 |
Correct |
10 ms |
256 KB |
Output is correct |
| 88 |
Correct |
9 ms |
256 KB |
Output is correct |
| 89 |
Correct |
11 ms |
256 KB |
Output is correct |
| 90 |
Correct |
9 ms |
256 KB |
Output is correct |
| 91 |
Correct |
9 ms |
256 KB |
Output is correct |
| 92 |
Correct |
7 ms |
256 KB |
Output is correct |
| 93 |
Correct |
11 ms |
384 KB |
Output is correct |
| 94 |
Correct |
11 ms |
256 KB |
Output is correct |
| 95 |
Correct |
13 ms |
256 KB |
Output is correct |
| 96 |
Correct |
11 ms |
256 KB |
Output is correct |
| 97 |
Correct |
9 ms |
256 KB |
Output is correct |
