#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> h[200005];
int f=-1,N;
vector<int> query(int idx){
if(!h[idx].empty())return h[idx];
return h[idx]=ask(idx);
}
int close_left(int l,int r){
while(l<=r){
vector<int> M=query(l);
if((M[0]+M[1])==N)return l;
else if(!(M[0]+M[1])){f=l;return -1;}
l++;
}
return -1;
}
int close_right(int l,int r){
while(r>=l){
vector<int> M=query(r);
if((M[0]+M[1])==N)return r;
else if(!(M[0]+M[1])){f=r;return -1;}
r--;
}
return -1;
}
void gimme(int l,int r){
if(f!=-1)return;
if(l==r)return ;
vector<int> G=query(l),G2=query(r);
if(G2[0]==G[0])return;
int med=(l+r)>>1,k;
vector<int> M=query(med);
if(!(M[0]+M[1])){f=med;return;}
else if((M[0]+M[1])==N){
gimme(l,med);
if(f!=-1)return;
k=med;
if(f!=-1)return;
if(k!=-1)gimme(k,r);
}
else{
k=close_right(l,med-1);
if(f!=-1)return;
if(k!=-1)gimme(l,k);
if(f!=-1)return;
k=close_left(med+1,r);
if(f!=-1)return;
if(k!=-1)gimme(k,r);
}
}
int find_best(int n) {
N=0;
for (int i = 0; i < min(474,n); ++i)
{
vector<int> Y=query(i);
if(!(Y[0]+Y[1]))return i;
else N=max(N,Y[0]+Y[1]);
}
int l=close_left(474,n-1);
if(f!=-1)return f;
assert(l!=-1);
int r=close_right(l,n-1);
if(f!=-1)return f;
assert(r!=-1);
gimme(l,r);
assert(f!=-1);
return f;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 2 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 3 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 4 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 5 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4992 KB |
Output is correct |
| 7 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 9 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 10 |
Correct |
11 ms |
4992 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 2 |
Correct |
8 ms |
5024 KB |
Output is correct |
| 3 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 4 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4992 KB |
Output is correct |
| 7 |
Correct |
8 ms |
5056 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 9 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 11 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 12 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 13 |
Correct |
12 ms |
4992 KB |
Output is correct |
| 14 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 15 |
Correct |
15 ms |
4992 KB |
Output is correct |
| 16 |
Correct |
54 ms |
5240 KB |
Output is correct |
| 17 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 18 |
Partially correct |
65 ms |
5112 KB |
Partially correct - number of queries: 5064 |
| 19 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 20 |
Correct |
13 ms |
5116 KB |
Output is correct |
| 21 |
Correct |
32 ms |
5112 KB |
Output is correct |
| 22 |
Correct |
12 ms |
4992 KB |
Output is correct |
| 23 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 24 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 25 |
Correct |
36 ms |
5112 KB |
Output is correct |
| 26 |
Correct |
36 ms |
5112 KB |
Output is correct |
| 27 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 28 |
Correct |
56 ms |
5112 KB |
Output is correct |
| 29 |
Correct |
46 ms |
5112 KB |
Output is correct |
| 30 |
Partially correct |
58 ms |
5112 KB |
Partially correct - number of queries: 5006 |
| 31 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 32 |
Correct |
13 ms |
4992 KB |
Output is correct |
| 33 |
Correct |
3 ms |
4992 KB |
Output is correct |
| 34 |
Correct |
23 ms |
5112 KB |
Output is correct |
| 35 |
Correct |
7 ms |
5096 KB |
Output is correct |
| 36 |
Correct |
12 ms |
5156 KB |
Output is correct |
| 37 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 38 |
Correct |
8 ms |
5072 KB |
Output is correct |
| 39 |
Correct |
25 ms |
5112 KB |
Output is correct |
| 40 |
Correct |
42 ms |
5112 KB |
Output is correct |
| 41 |
Correct |
38 ms |
5088 KB |
Output is correct |
| 42 |
Correct |
39 ms |
5112 KB |
Output is correct |
| 43 |
Correct |
38 ms |
5112 KB |
Output is correct |
| 44 |
Correct |
25 ms |
5112 KB |
Output is correct |
| 45 |
Correct |
13 ms |
5168 KB |
Output is correct |
| 46 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 47 |
Correct |
24 ms |
5156 KB |
Output is correct |
| 48 |
Correct |
40 ms |
5112 KB |
Output is correct |
| 49 |
Correct |
13 ms |
4992 KB |
Output is correct |
| 50 |
Partially correct |
67 ms |
5112 KB |
Partially correct - number of queries: 5082 |
| 51 |
Correct |
35 ms |
5112 KB |
Output is correct |
| 52 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 53 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 54 |
Correct |
37 ms |
5112 KB |
Output is correct |
| 55 |
Correct |
10 ms |
5024 KB |
Output is correct |
| 56 |
Partially correct |
52 ms |
5420 KB |
Partially correct - number of queries: 5079 |
| 57 |
Correct |
52 ms |
5112 KB |
Output is correct |
| 58 |
Correct |
52 ms |
5112 KB |
Output is correct |
| 59 |
Correct |
42 ms |
5112 KB |
Output is correct |
| 60 |
Correct |
40 ms |
5112 KB |
Output is correct |
| 61 |
Correct |
11 ms |
4992 KB |
Output is correct |
| 62 |
Correct |
9 ms |
5120 KB |
Output is correct |
| 63 |
Correct |
7 ms |
5136 KB |
Output is correct |
| 64 |
Correct |
11 ms |
4992 KB |
Output is correct |
| 65 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 66 |
Correct |
6 ms |
5128 KB |
Output is correct |
| 67 |
Correct |
14 ms |
4992 KB |
Output is correct |
| 68 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 69 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 70 |
Correct |
13 ms |
4992 KB |
Output is correct |
| 71 |
Partially correct |
45 ms |
5112 KB |
Partially correct - number of queries: 5235 |
| 72 |
Correct |
12 ms |
4992 KB |
Output is correct |
| 73 |
Partially correct |
72 ms |
5112 KB |
Partially correct - number of queries: 5172 |
| 74 |
Partially correct |
58 ms |
5240 KB |
Partially correct - number of queries: 5199 |
| 75 |
Correct |
11 ms |
4992 KB |
Output is correct |
| 76 |
Correct |
50 ms |
5204 KB |
Output is correct |
| 77 |
Partially correct |
65 ms |
5216 KB |
Partially correct - number of queries: 5172 |
| 78 |
Correct |
15 ms |
4992 KB |
Output is correct |
| 79 |
Correct |
29 ms |
5112 KB |
Output is correct |
| 80 |
Partially correct |
65 ms |
5112 KB |
Partially correct - number of queries: 5209 |
| 81 |
Partially correct |
68 ms |
5112 KB |
Partially correct - number of queries: 5189 |
| 82 |
Partially correct |
46 ms |
5112 KB |
Partially correct - number of queries: 5178 |
| 83 |
Correct |
11 ms |
4992 KB |
Output is correct |
| 84 |
Correct |
61 ms |
5112 KB |
Output is correct |
| 85 |
Partially correct |
51 ms |
5112 KB |
Partially correct - number of queries: 5180 |
| 86 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 87 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 88 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 89 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 90 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 91 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 92 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 93 |
Correct |
12 ms |
4992 KB |
Output is correct |
| 94 |
Correct |
8 ms |
5156 KB |
Output is correct |
| 95 |
Correct |
14 ms |
4992 KB |
Output is correct |
| 96 |
Correct |
8 ms |
5220 KB |
Output is correct |
| 97 |
Correct |
11 ms |
4992 KB |
Output is correct |
