#include <bits/stdc++.h>
using namespace std;
#include "prize.h"
//vector<int> ask(int i);
vector<int> series;
int N;
vector<int> memo[200001];
vector<int> query(int i) {
if(i == -42) return {2*N, 2*N};
if(i < 0 or i > N-1)
return {0, 0};
if(memo[i][0] != -1) return memo[i];
else return memo[i] = ask(i);
}
/*int find(int l, int r) {
if(l == r) return l;
int mid = (l+r)/2;
vector<int> q = query(mid);
if(q[0] == 0 and q[1] == 0) return mid;
else if(q[0] == 0) return find(mid+1, r);
return find(l, mid-1);
}*/
bool bigger(int i, int j) {
vector<int> q1 = query(i);
vector<int> q2 = query(j);
return q1[0] + q1[1] < q2[0] + q2[1];
}
int MINI = -1;
bool ok(int i) {
vector<int> q = query(i);
return MINI == q[0] + q[1];
}
int L(int i) {
vector<int> q = query(i);
return q[0];
}
int R(int i) {
vector<int> q = query(i);
return q[1];
}
int S(int i) {
vector<int> q = query(i);
return q[0] + q[1];
}
int find(int l, int r) {
if(l > r or l < 0 or r > N-1) return -42;
if(l == r) return l;
int rB = R(r+1);
int lB = L(l-1);
int mid = (l + r) / 2;
vector<int> q = query(mid);
vector<int> candidates = {mid};
if(R(mid) - rB != 0) candidates.push_back(find(mid+1, r));
if(L(mid) - lB != 0) candidates.push_back(find(l, mid-1));
int ans = -1;
int mini = N+1;
for(int i : candidates) if(S(i) < mini) mini = S(i), ans = i;
return ans;
}
int solve() {
/*if(N <= 5000) {
for(int i = 0; i < N; i++) {
vector<int> q = query(i);
if(q[0] + q[1] == 0) return i;
}
}*/
return find(0, N-1);
}
int find_best(int n) {
series.clear();
long long cur = 1;
series.push_back(cur);
while(cur * cur + 1LL < (long long)n) {
series.push_back(cur * cur + 1LL);
cur = cur * cur + 1LL;
}
N = n;
for(int i = 0; i < N; i++) memo[i] = {-1, -1};
//return find(0, N-1);
return solve();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
20 ms |
11256 KB |
Output is correct |
| 2 |
Correct |
25 ms |
11316 KB |
Output is correct |
| 3 |
Correct |
20 ms |
11316 KB |
Output is correct |
| 4 |
Correct |
31 ms |
11316 KB |
Output is correct |
| 5 |
Correct |
19 ms |
11324 KB |
Output is correct |
| 6 |
Correct |
19 ms |
11452 KB |
Output is correct |
| 7 |
Correct |
24 ms |
11452 KB |
Output is correct |
| 8 |
Correct |
25 ms |
11456 KB |
Output is correct |
| 9 |
Correct |
19 ms |
11456 KB |
Output is correct |
| 10 |
Correct |
31 ms |
11456 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
19 ms |
11456 KB |
Output is correct |
| 2 |
Correct |
23 ms |
11456 KB |
Output is correct |
| 3 |
Correct |
22 ms |
11456 KB |
Output is correct |
| 4 |
Correct |
20 ms |
11456 KB |
Output is correct |
| 5 |
Correct |
18 ms |
11456 KB |
Output is correct |
| 6 |
Correct |
19 ms |
11456 KB |
Output is correct |
| 7 |
Correct |
24 ms |
11456 KB |
Output is correct |
| 8 |
Correct |
19 ms |
11456 KB |
Output is correct |
| 9 |
Correct |
18 ms |
11528 KB |
Output is correct |
| 10 |
Correct |
19 ms |
11528 KB |
Output is correct |
| 11 |
Correct |
26 ms |
11528 KB |
Output is correct |
| 12 |
Correct |
23 ms |
11528 KB |
Output is correct |
| 13 |
Correct |
26 ms |
11528 KB |
Output is correct |
| 14 |
Correct |
16 ms |
11528 KB |
Output is correct |
| 15 |
Correct |
62 ms |
11528 KB |
Output is correct |
| 16 |
Partially correct |
69 ms |
11528 KB |
Partially correct - number of queries: 5041 |
| 17 |
Partially correct |
84 ms |
11528 KB |
Partially correct - number of queries: 5074 |
| 18 |
Partially correct |
48 ms |
11528 KB |
Partially correct - number of queries: 5065 |
| 19 |
Correct |
72 ms |
11528 KB |
Output is correct |
| 20 |
Correct |
27 ms |
11528 KB |
Output is correct |
| 21 |
Partially correct |
76 ms |
11528 KB |
Partially correct - number of queries: 5009 |
| 22 |
Correct |
56 ms |
11580 KB |
Output is correct |
| 23 |
Correct |
23 ms |
11580 KB |
Output is correct |
| 24 |
Correct |
24 ms |
11580 KB |
Output is correct |
| 25 |
Correct |
53 ms |
11580 KB |
Output is correct |
| 26 |
Correct |
80 ms |
11580 KB |
Output is correct |
| 27 |
Correct |
25 ms |
11580 KB |
Output is correct |
| 28 |
Correct |
61 ms |
11580 KB |
Output is correct |
| 29 |
Correct |
53 ms |
11580 KB |
Output is correct |
| 30 |
Partially correct |
68 ms |
11580 KB |
Partially correct - number of queries: 5025 |
| 31 |
Partially correct |
71 ms |
11580 KB |
Partially correct - number of queries: 5021 |
| 32 |
Correct |
23 ms |
11580 KB |
Output is correct |
| 33 |
Correct |
6 ms |
11580 KB |
Output is correct |
| 34 |
Partially correct |
85 ms |
11580 KB |
Partially correct - number of queries: 5049 |
| 35 |
Correct |
25 ms |
11580 KB |
Output is correct |
| 36 |
Partially correct |
81 ms |
11580 KB |
Partially correct - number of queries: 5058 |
| 37 |
Correct |
24 ms |
11580 KB |
Output is correct |
| 38 |
Correct |
28 ms |
11580 KB |
Output is correct |
| 39 |
Partially correct |
58 ms |
11580 KB |
Partially correct - number of queries: 5068 |
| 40 |
Correct |
55 ms |
11580 KB |
Output is correct |
| 41 |
Partially correct |
67 ms |
11580 KB |
Partially correct - number of queries: 5094 |
| 42 |
Partially correct |
77 ms |
11580 KB |
Partially correct - number of queries: 5094 |
| 43 |
Correct |
75 ms |
11580 KB |
Output is correct |
| 44 |
Partially correct |
62 ms |
11580 KB |
Partially correct - number of queries: 5053 |
| 45 |
Correct |
61 ms |
11580 KB |
Output is correct |
| 46 |
Partially correct |
54 ms |
11580 KB |
Partially correct - number of queries: 5062 |
| 47 |
Correct |
61 ms |
11580 KB |
Output is correct |
| 48 |
Partially correct |
68 ms |
11580 KB |
Partially correct - number of queries: 5081 |
| 49 |
Partially correct |
49 ms |
11580 KB |
Partially correct - number of queries: 5085 |
| 50 |
Partially correct |
68 ms |
11580 KB |
Partially correct - number of queries: 5071 |
| 51 |
Partially correct |
58 ms |
11580 KB |
Partially correct - number of queries: 5074 |
| 52 |
Partially correct |
70 ms |
11580 KB |
Partially correct - number of queries: 5066 |
| 53 |
Correct |
20 ms |
11580 KB |
Output is correct |
| 54 |
Partially correct |
57 ms |
11580 KB |
Partially correct - number of queries: 5014 |
| 55 |
Partially correct |
54 ms |
11580 KB |
Partially correct - number of queries: 5065 |
| 56 |
Partially correct |
75 ms |
11580 KB |
Partially correct - number of queries: 5058 |
| 57 |
Partially correct |
84 ms |
11580 KB |
Partially correct - number of queries: 5021 |
| 58 |
Partially correct |
67 ms |
11580 KB |
Partially correct - number of queries: 5086 |
| 59 |
Partially correct |
91 ms |
11580 KB |
Partially correct - number of queries: 5092 |
| 60 |
Partially correct |
54 ms |
11580 KB |
Partially correct - number of queries: 5035 |
| 61 |
Correct |
21 ms |
11580 KB |
Output is correct |
| 62 |
Correct |
23 ms |
11580 KB |
Output is correct |
| 63 |
Correct |
20 ms |
11580 KB |
Output is correct |
| 64 |
Correct |
21 ms |
11580 KB |
Output is correct |
| 65 |
Correct |
23 ms |
11580 KB |
Output is correct |
| 66 |
Correct |
26 ms |
11580 KB |
Output is correct |
| 67 |
Correct |
21 ms |
11580 KB |
Output is correct |
| 68 |
Correct |
19 ms |
11580 KB |
Output is correct |
| 69 |
Correct |
21 ms |
11580 KB |
Output is correct |
| 70 |
Correct |
19 ms |
11580 KB |
Output is correct |
| 71 |
Correct |
66 ms |
11580 KB |
Output is correct |
| 72 |
Correct |
26 ms |
11580 KB |
Output is correct |
| 73 |
Correct |
71 ms |
11580 KB |
Output is correct |
| 74 |
Correct |
45 ms |
11580 KB |
Output is correct |
| 75 |
Correct |
24 ms |
11580 KB |
Output is correct |
| 76 |
Correct |
54 ms |
11580 KB |
Output is correct |
| 77 |
Partially correct |
72 ms |
11580 KB |
Partially correct - number of queries: 5230 |
| 78 |
Correct |
23 ms |
11580 KB |
Output is correct |
| 79 |
Correct |
39 ms |
11580 KB |
Output is correct |
| 80 |
Partially correct |
69 ms |
11580 KB |
Partially correct - number of queries: 5231 |
| 81 |
Partially correct |
69 ms |
11580 KB |
Partially correct - number of queries: 5176 |
| 82 |
Partially correct |
65 ms |
11580 KB |
Partially correct - number of queries: 5178 |
| 83 |
Correct |
21 ms |
11580 KB |
Output is correct |
| 84 |
Correct |
58 ms |
11580 KB |
Output is correct |
| 85 |
Partially correct |
63 ms |
11580 KB |
Partially correct - number of queries: 5245 |
| 86 |
Correct |
37 ms |
11580 KB |
Output is correct |
| 87 |
Correct |
22 ms |
11580 KB |
Output is correct |
| 88 |
Correct |
25 ms |
11580 KB |
Output is correct |
| 89 |
Correct |
24 ms |
11580 KB |
Output is correct |
| 90 |
Correct |
20 ms |
11580 KB |
Output is correct |
| 91 |
Correct |
23 ms |
11580 KB |
Output is correct |
| 92 |
Correct |
18 ms |
11580 KB |
Output is correct |
| 93 |
Correct |
29 ms |
11580 KB |
Output is correct |
| 94 |
Correct |
21 ms |
11580 KB |
Output is correct |
| 95 |
Correct |
23 ms |
11580 KB |
Output is correct |
| 96 |
Correct |
22 ms |
11580 KB |
Output is correct |
| 97 |
Correct |
18 ms |
11580 KB |
Output is correct |
