#include "prize.h"
#include<bits/stdc++.h>
#define ll long long
#define lld long double
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define vr(v) v.begin(),v.end()
#define rv(v) v.rbegin(),v.rend()
using namespace std;
namespace RND {
mt19937 myrand(chrono::steady_clock::now().time_since_epoch().count());
ll RANDOM(ll l, ll r) {
ll res = myrand() % (r - l + 1) + l;
return res;
}
void shuffle(vector<int> &a) {
for (int i = 0; i < (int) a.size(); i++) {
int idx = RANDOM(0, (int) a.size() - 1);
swap(a[i], a[idx]);
}
}
};
namespace {
const int N = 2e5 + 5;
int answer = -1;
int A[N][2];
};
void harc(int x) {
if (A[x][0] == -1) {
vector<int> tmp = ask(x);
A[x][0] = tmp[0];
A[x][1] = tmp[1];
}
if (A[x][0] + A[x][1] == 0) {
answer = x;
return;
}
}
int Rank(int x) {
harc(x);
return A[x][0] + A[x][1];
}
int pref(int x) {
harc(x);
return A[x][0];
}
void solve(int start, int end) {
if (answer != -1)return;
if (start == end) {
harc(start);
return;
}
while (Rank(start) != Rank(end)) {
if (Rank(start) < Rank(end))start++;
else end--;
}
if (A[start][0] == A[end][0])return;
int mid = (start + end) >> 1;
solve(start, mid);
solve(mid + 1, end);
}
int find_best(int n) {
for (int i = 0; i < N; i++)A[i][0] = -1;
solve(0, n - 1);
return answer;
}
| # |
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 |
2 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 |
1 ms |
1880 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2136 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2132 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 |
2 ms |
1880 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2132 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 |
2136 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 11 |
Correct |
3 ms |
2132 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 |
1880 KB |
Output is correct |
| 15 |
Correct |
4 ms |
1972 KB |
Output is correct |
| 16 |
Partially correct |
24 ms |
1880 KB |
Partially correct - number of queries: 6197 |
| 17 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 18 |
Partially correct |
40 ms |
1880 KB |
Partially correct - number of queries: 7516 |
| 19 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 20 |
Correct |
9 ms |
1880 KB |
Output is correct |
| 21 |
Correct |
13 ms |
1880 KB |
Output is correct |
| 22 |
Correct |
5 ms |
2036 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 25 |
Correct |
20 ms |
1880 KB |
Output is correct |
| 26 |
Correct |
20 ms |
1880 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 28 |
Partially correct |
30 ms |
1880 KB |
Partially correct - number of queries: 6453 |
| 29 |
Correct |
24 ms |
2136 KB |
Output is correct |
| 30 |
Partially correct |
44 ms |
1876 KB |
Partially correct - number of queries: 7471 |
| 31 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 32 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 33 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 34 |
Correct |
12 ms |
1948 KB |
Output is correct |
| 35 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 36 |
Correct |
7 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 |
18 ms |
1880 KB |
Output is correct |
| 40 |
Partially correct |
37 ms |
1888 KB |
Partially correct - number of queries: 6509 |
| 41 |
Correct |
25 ms |
1876 KB |
Output is correct |
| 42 |
Correct |
19 ms |
1880 KB |
Output is correct |
| 43 |
Correct |
18 ms |
1880 KB |
Output is correct |
| 44 |
Correct |
10 ms |
1880 KB |
Output is correct |
| 45 |
Correct |
11 ms |
2136 KB |
Output is correct |
| 46 |
Correct |
1 ms |
2040 KB |
Output is correct |
| 47 |
Correct |
15 ms |
1880 KB |
Output is correct |
| 48 |
Partially correct |
37 ms |
2136 KB |
Partially correct - number of queries: 5341 |
| 49 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 50 |
Partially correct |
38 ms |
1880 KB |
Partially correct - number of queries: 7475 |
| 51 |
Correct |
17 ms |
1876 KB |
Output is correct |
| 52 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 53 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 54 |
Correct |
17 ms |
1876 KB |
Output is correct |
| 55 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 56 |
Partially correct |
34 ms |
2084 KB |
Partially correct - number of queries: 7563 |
| 57 |
Partially correct |
28 ms |
1880 KB |
Partially correct - number of queries: 5315 |
| 58 |
Partially correct |
26 ms |
1880 KB |
Partially correct - number of queries: 5374 |
| 59 |
Correct |
19 ms |
1880 KB |
Output is correct |
| 60 |
Correct |
28 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 |
3 ms |
1880 KB |
Output is correct |
| 67 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 68 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 69 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 70 |
Correct |
2 ms |
1980 KB |
Output is correct |
| 71 |
Partially correct |
41 ms |
1880 KB |
Partially correct - number of queries: 8104 |
| 72 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 73 |
Partially correct |
36 ms |
1880 KB |
Partially correct - number of queries: 7999 |
| 74 |
Partially correct |
39 ms |
1880 KB |
Partially correct - number of queries: 8044 |
| 75 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 76 |
Partially correct |
39 ms |
1880 KB |
Partially correct - number of queries: 7024 |
| 77 |
Partially correct |
42 ms |
1876 KB |
Partially correct - number of queries: 7264 |
| 78 |
Correct |
5 ms |
1880 KB |
Output is correct |
| 79 |
Correct |
30 ms |
1880 KB |
Output is correct |
| 80 |
Partially correct |
36 ms |
1880 KB |
Partially correct - number of queries: 7326 |
| 81 |
Partially correct |
34 ms |
1880 KB |
Partially correct - number of queries: 7196 |
| 82 |
Partially correct |
39 ms |
1880 KB |
Partially correct - number of queries: 7258 |
| 83 |
Correct |
2 ms |
2080 KB |
Output is correct |
| 84 |
Partially correct |
33 ms |
1880 KB |
Partially correct - number of queries: 6078 |
| 85 |
Partially correct |
34 ms |
1880 KB |
Partially correct - number of queries: 7270 |
| 86 |
Correct |
3 ms |
1876 KB |
Output is correct |
| 87 |
Correct |
1 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 |
1 ms |
2132 KB |
Output is correct |
| 92 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 93 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 94 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 95 |
Correct |
4 ms |
2136 KB |
Output is correct |
| 96 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 97 |
Correct |
1 ms |
1880 KB |
Output is correct |
