#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
int ans=-1;
int m;
int N;
int cnt=0;
vector<int> query(int id){
if(id==N) return {m,0};
else{
vector<int> a=ask(id);
if(a[0]+a[1]==0) ans=id;
return a;
}
}
void solve(int l,int r,int x,int p,int q){
if(x==0) return;
if(r-l+1==x){
for(int i=l;i<=r;i++){
vector<int> a=query(i);
if(a[0]+a[1]==0){
ans=i;
return;
}
}
return;
}
if(ans!=-1) return;
int mid=(l+r)/2;
//mid+1 を聞く
vector<int> a=query(mid+1);
if(a[0]+a[1]==m){
solve(l,mid,a[0]-p,p,a[1]);
if(ans!=-1) return;
solve(mid+1,r,a[1]-q,a[0],q);
}
else{
int now=mid+1;
int cnt=1;
while(now<r){
vector<int> a=query(now+1);
if(a[0]+a[1]!=m){
cnt++;
now++;
}
else{
break;
}
}
if(now==r){
//mid+1 から r は全部特殊
solve(l,mid,x-cnt,p,q+cnt);
}
else{
vector<int> a=query(now+1);
//mid+1 から now は全部特殊
solve(now+1,r,a[1]-q,a[0],q);
if(ans!=-1) return;
solve(l,mid,a[0]-cnt-p,p,a[1]+cnt);
if(ans!=-1) return;
}
}
}
int find_best(int n) {
N=n;
if(n<=5000){
for(int i=0;i<n;i++){
vector<int> a=ask(i);
if(a[0]+a[1]==0) return i;
}
}
m=-1;
for(int i=0;i<500;i++){
int k=i%n;
vector<int> a=query(k);
if(a[0]+a[1]==0) return i;
if(m<a[0]+a[1]) m=a[0]+a[1];
}
solve(0,n-1,m,0,0);
return ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
344 KB |
Output is correct |
| 2 |
Correct |
2 ms |
344 KB |
Output is correct |
| 3 |
Correct |
3 ms |
344 KB |
Output is correct |
| 4 |
Correct |
2 ms |
344 KB |
Output is correct |
| 5 |
Correct |
3 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
344 KB |
Output is correct |
| 7 |
Correct |
4 ms |
344 KB |
Output is correct |
| 8 |
Correct |
2 ms |
344 KB |
Output is correct |
| 9 |
Correct |
2 ms |
340 KB |
Output is correct |
| 10 |
Correct |
2 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
344 KB |
Output is correct |
| 2 |
Correct |
2 ms |
344 KB |
Output is correct |
| 3 |
Correct |
2 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
2 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
2 ms |
344 KB |
Output is correct |
| 8 |
Correct |
2 ms |
344 KB |
Output is correct |
| 9 |
Correct |
2 ms |
344 KB |
Output is correct |
| 10 |
Correct |
3 ms |
344 KB |
Output is correct |
| 11 |
Correct |
3 ms |
344 KB |
Output is correct |
| 12 |
Correct |
3 ms |
344 KB |
Output is correct |
| 13 |
Correct |
4 ms |
344 KB |
Output is correct |
| 14 |
Correct |
3 ms |
344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
432 KB |
Output is correct |
| 16 |
Correct |
16 ms |
344 KB |
Output is correct |
| 17 |
Correct |
2 ms |
344 KB |
Output is correct |
| 18 |
Correct |
21 ms |
344 KB |
Output is correct |
| 19 |
Correct |
2 ms |
344 KB |
Output is correct |
| 20 |
Correct |
9 ms |
344 KB |
Output is correct |
| 21 |
Correct |
5 ms |
344 KB |
Output is correct |
| 22 |
Correct |
2 ms |
344 KB |
Output is correct |
| 23 |
Correct |
2 ms |
344 KB |
Output is correct |
| 24 |
Correct |
2 ms |
424 KB |
Output is correct |
| 25 |
Correct |
10 ms |
344 KB |
Output is correct |
| 26 |
Correct |
14 ms |
344 KB |
Output is correct |
| 27 |
Correct |
2 ms |
344 KB |
Output is correct |
| 28 |
Correct |
16 ms |
340 KB |
Output is correct |
| 29 |
Correct |
13 ms |
344 KB |
Output is correct |
| 30 |
Correct |
13 ms |
344 KB |
Output is correct |
| 31 |
Correct |
1 ms |
344 KB |
Output is correct |
| 32 |
Correct |
3 ms |
340 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
7 ms |
428 KB |
Output is correct |
| 35 |
Correct |
3 ms |
344 KB |
Output is correct |
| 36 |
Correct |
8 ms |
344 KB |
Output is correct |
| 37 |
Correct |
3 ms |
344 KB |
Output is correct |
| 38 |
Correct |
2 ms |
344 KB |
Output is correct |
| 39 |
Correct |
8 ms |
344 KB |
Output is correct |
| 40 |
Correct |
15 ms |
344 KB |
Output is correct |
| 41 |
Correct |
12 ms |
344 KB |
Output is correct |
| 42 |
Correct |
11 ms |
344 KB |
Output is correct |
| 43 |
Correct |
9 ms |
344 KB |
Output is correct |
| 44 |
Correct |
10 ms |
344 KB |
Output is correct |
| 45 |
Correct |
10 ms |
344 KB |
Output is correct |
| 46 |
Correct |
2 ms |
344 KB |
Output is correct |
| 47 |
Correct |
9 ms |
344 KB |
Output is correct |
| 48 |
Correct |
17 ms |
348 KB |
Output is correct |
| 49 |
Correct |
4 ms |
344 KB |
Output is correct |
| 50 |
Correct |
22 ms |
596 KB |
Output is correct |
| 51 |
Correct |
9 ms |
344 KB |
Output is correct |
| 52 |
Correct |
3 ms |
344 KB |
Output is correct |
| 53 |
Correct |
3 ms |
344 KB |
Output is correct |
| 54 |
Correct |
9 ms |
344 KB |
Output is correct |
| 55 |
Correct |
1 ms |
344 KB |
Output is correct |
| 56 |
Correct |
20 ms |
344 KB |
Output is correct |
| 57 |
Correct |
18 ms |
344 KB |
Output is correct |
| 58 |
Correct |
11 ms |
344 KB |
Output is correct |
| 59 |
Correct |
13 ms |
344 KB |
Output is correct |
| 60 |
Correct |
13 ms |
596 KB |
Output is correct |
| 61 |
Correct |
4 ms |
344 KB |
Output is correct |
| 62 |
Correct |
2 ms |
424 KB |
Output is correct |
| 63 |
Correct |
2 ms |
344 KB |
Output is correct |
| 64 |
Correct |
4 ms |
344 KB |
Output is correct |
| 65 |
Correct |
2 ms |
344 KB |
Output is correct |
| 66 |
Correct |
5 ms |
344 KB |
Output is correct |
| 67 |
Correct |
4 ms |
344 KB |
Output is correct |
| 68 |
Correct |
2 ms |
344 KB |
Output is correct |
| 69 |
Correct |
3 ms |
344 KB |
Output is correct |
| 70 |
Correct |
2 ms |
344 KB |
Output is correct |
| 71 |
Partially correct |
26 ms |
344 KB |
Partially correct - number of queries: 5259 |
| 72 |
Correct |
4 ms |
344 KB |
Output is correct |
| 73 |
Partially correct |
26 ms |
344 KB |
Partially correct - number of queries: 5196 |
| 74 |
Partially correct |
32 ms |
344 KB |
Partially correct - number of queries: 5223 |
| 75 |
Correct |
2 ms |
344 KB |
Output is correct |
| 76 |
Correct |
14 ms |
344 KB |
Output is correct |
| 77 |
Partially correct |
14 ms |
344 KB |
Partially correct - number of queries: 5229 |
| 78 |
Correct |
4 ms |
344 KB |
Output is correct |
| 79 |
Correct |
7 ms |
344 KB |
Output is correct |
| 80 |
Partially correct |
22 ms |
344 KB |
Partially correct - number of queries: 5227 |
| 81 |
Partially correct |
27 ms |
344 KB |
Partially correct - number of queries: 5244 |
| 82 |
Partially correct |
20 ms |
344 KB |
Partially correct - number of queries: 5166 |
| 83 |
Correct |
2 ms |
344 KB |
Output is correct |
| 84 |
Correct |
20 ms |
344 KB |
Output is correct |
| 85 |
Partially correct |
19 ms |
344 KB |
Partially correct - number of queries: 5203 |
| 86 |
Correct |
4 ms |
344 KB |
Output is correct |
| 87 |
Correct |
2 ms |
344 KB |
Output is correct |
| 88 |
Correct |
4 ms |
344 KB |
Output is correct |
| 89 |
Correct |
4 ms |
344 KB |
Output is correct |
| 90 |
Correct |
2 ms |
344 KB |
Output is correct |
| 91 |
Correct |
6 ms |
344 KB |
Output is correct |
| 92 |
Correct |
6 ms |
344 KB |
Output is correct |
| 93 |
Correct |
4 ms |
344 KB |
Output is correct |
| 94 |
Correct |
8 ms |
344 KB |
Output is correct |
| 95 |
Correct |
5 ms |
344 KB |
Output is correct |
| 96 |
Correct |
5 ms |
600 KB |
Output is correct |
| 97 |
Correct |
4 ms |
344 KB |
Output is correct |
