#include <bits/stdc++.h>
#include "prize.h"
using namespace std;
using ll = long long;
pair<int, int> memo[200001];
ll p = 0;
pair<ll, ll> doask(int i) {
if (memo[i].first != -1) {
return memo[i];
}
auto v = ask(i);
memo[i] = {v[0], v[1]};
return memo[i];
}
int find_best(int n) {
mt19937 gen(chrono::system_clock::now().time_since_epoch().count());
for (int i = 0; i < n; i++) {
memo[i] = {-1, -1};
}
for (int i = 0; i < 3; i++) {
ll x = gen() % n;
p = max(p, doask(x).first + doask(x).second);
if (doask(x).first + doask(x).second == 0) {
return x;
}
}
ll x = 0;
while (x != n) {
if (doask(x).first + doask(x).second != p) {
if (doask(x).first + doask(x).second == 0) {
return x;
}
x++;
continue;
}
ll l = x, r = n - 1;
while (r > l) {
ll mid = (l + r) / 2;
if (doask(mid) != doask(x)) {
r = mid;
}
else {
l = mid + 1;
}
}
if (doask(l).first + doask(l).second == 0) {
return l;
}
x = r + 1;
}
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:55:1: warning: control reaches end of non-void function [-Wreturn-type]
55 | }
| ^
| # |
결과 |
실행 시간 |
메모리 |
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 |
2 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 |
1 ms |
1880 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1880 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
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 |
1 ms |
1880 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1880 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 |
3 ms |
1880 KB |
Output is correct |
| 14 |
Correct |
3 ms |
600 KB |
Output is correct |
| 15 |
Correct |
7 ms |
1976 KB |
Output is correct |
| 16 |
Partially correct |
30 ms |
1880 KB |
Partially correct - number of queries: 6664 |
| 17 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 18 |
Partially correct |
50 ms |
1880 KB |
Partially correct - number of queries: 7805 |
| 19 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 20 |
Correct |
11 ms |
1112 KB |
Output is correct |
| 21 |
Correct |
15 ms |
1880 KB |
Output is correct |
| 22 |
Correct |
3 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 |
28 ms |
1880 KB |
Output is correct |
| 26 |
Correct |
27 ms |
1880 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 28 |
Partially correct |
54 ms |
1880 KB |
Partially correct - number of queries: 7364 |
| 29 |
Partially correct |
34 ms |
1880 KB |
Partially correct - number of queries: 5584 |
| 30 |
Partially correct |
48 ms |
1880 KB |
Partially correct - number of queries: 7761 |
| 31 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 32 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
9 ms |
1880 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 |
22 ms |
1980 KB |
Output is correct |
| 40 |
Partially correct |
34 ms |
1880 KB |
Partially correct - number of queries: 6639 |
| 41 |
Correct |
26 ms |
1880 KB |
Output is correct |
| 42 |
Correct |
14 ms |
1876 KB |
Output is correct |
| 43 |
Correct |
32 ms |
1880 KB |
Output is correct |
| 44 |
Correct |
10 ms |
1880 KB |
Output is correct |
| 45 |
Correct |
13 ms |
1880 KB |
Output is correct |
| 46 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 47 |
Correct |
15 ms |
1880 KB |
Output is correct |
| 48 |
Partially correct |
31 ms |
1880 KB |
Partially correct - number of queries: 5797 |
| 49 |
Correct |
5 ms |
1880 KB |
Output is correct |
| 50 |
Partially correct |
36 ms |
1880 KB |
Partially correct - number of queries: 7800 |
| 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 |
1880 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: 7806 |
| 57 |
Partially correct |
33 ms |
1880 KB |
Partially correct - number of queries: 5683 |
| 58 |
Partially correct |
38 ms |
1880 KB |
Partially correct - number of queries: 5775 |
| 59 |
Correct |
32 ms |
1876 KB |
Output is correct |
| 60 |
Correct |
19 ms |
1880 KB |
Output is correct |
| 61 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 62 |
Correct |
1 ms |
1876 KB |
Output is correct |
| 63 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 64 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 65 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 66 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 67 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 68 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 69 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 70 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 71 |
Partially correct |
32 ms |
1880 KB |
Partially correct - number of queries: 7829 |
| 72 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 73 |
Partially correct |
45 ms |
1880 KB |
Partially correct - number of queries: 7700 |
| 74 |
Partially correct |
37 ms |
1880 KB |
Partially correct - number of queries: 7767 |
| 75 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 76 |
Partially correct |
39 ms |
1880 KB |
Partially correct - number of queries: 6628 |
| 77 |
Partially correct |
46 ms |
1880 KB |
Partially correct - number of queries: 7894 |
| 78 |
Correct |
5 ms |
1880 KB |
Output is correct |
| 79 |
Correct |
18 ms |
1880 KB |
Output is correct |
| 80 |
Partially correct |
38 ms |
1880 KB |
Partially correct - number of queries: 7880 |
| 81 |
Partially correct |
52 ms |
1880 KB |
Partially correct - number of queries: 7860 |
| 82 |
Partially correct |
42 ms |
1880 KB |
Partially correct - number of queries: 7821 |
| 83 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 84 |
Partially correct |
34 ms |
1880 KB |
Partially correct - number of queries: 6450 |
| 85 |
Partially correct |
39 ms |
1880 KB |
Partially correct - number of queries: 7879 |
| 86 |
Incorrect |
64 ms |
1880 KB |
Incorrect |
| 87 |
Halted |
0 ms |
0 KB |
- |
