#include <bits/stdc++.h>
using namespace std;
#define ff first;
#define ss second
#define pb push_back
//#define int long long
int k,l,r,n,ans;
bool b1;
int main(){
cin>>n;
cout<<"? "<<1<<endl;
cin>>b1;
l=2;
r=n;
k=2;
while(l<=r){
if(k%2==0){
cout<<"? "<<r<<endl;
cin>>b1;
if(b1==1){
ans=r-(l-1);
}else{
break;
}
r--;
}else{
cout<<"? "<<l<<endl;
cin>>b1;
if(b1==1){
ans=(r+1)-l;
}else{
break;
}
l++;
}
k++;
}
cout<<"= "<<ans<<endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
OK (5 queries) |
| 2 |
Correct |
0 ms |
344 KB |
OK (6 queries) |
| 3 |
Correct |
0 ms |
344 KB |
OK (10 queries) |
| 4 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 5 |
Correct |
0 ms |
344 KB |
OK (13 queries) |
| 6 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 7 |
Correct |
0 ms |
344 KB |
OK (17 queries) |
| 8 |
Correct |
0 ms |
344 KB |
OK (7 queries) |
| 9 |
Correct |
0 ms |
344 KB |
OK (9 queries) |
| 10 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 11 |
Correct |
0 ms |
344 KB |
OK (4 queries) |
| 12 |
Correct |
0 ms |
344 KB |
OK (5 queries) |
| 13 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 14 |
Correct |
0 ms |
344 KB |
OK (16 queries) |
| 15 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 16 |
Correct |
0 ms |
368 KB |
OK (34 queries) |
| 17 |
Incorrect |
0 ms |
344 KB |
Integer parameter [name=k] equals to 0, violates the range [1, 35] |
| 18 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
OK (5 queries) |
| 2 |
Correct |
0 ms |
344 KB |
OK (6 queries) |
| 3 |
Correct |
0 ms |
344 KB |
OK (10 queries) |
| 4 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 5 |
Correct |
0 ms |
344 KB |
OK (13 queries) |
| 6 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 7 |
Correct |
0 ms |
344 KB |
OK (17 queries) |
| 8 |
Correct |
0 ms |
344 KB |
OK (7 queries) |
| 9 |
Correct |
0 ms |
344 KB |
OK (9 queries) |
| 10 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 11 |
Correct |
0 ms |
344 KB |
OK (4 queries) |
| 12 |
Correct |
0 ms |
344 KB |
OK (5 queries) |
| 13 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 14 |
Correct |
0 ms |
344 KB |
OK (16 queries) |
| 15 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 16 |
Correct |
0 ms |
368 KB |
OK (34 queries) |
| 17 |
Incorrect |
0 ms |
344 KB |
Integer parameter [name=k] equals to 0, violates the range [1, 35] |
| 18 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
OK (5 queries) |
| 2 |
Correct |
0 ms |
344 KB |
OK (6 queries) |
| 3 |
Correct |
0 ms |
344 KB |
OK (10 queries) |
| 4 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 5 |
Correct |
0 ms |
344 KB |
OK (13 queries) |
| 6 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 7 |
Correct |
0 ms |
344 KB |
OK (17 queries) |
| 8 |
Correct |
0 ms |
344 KB |
OK (7 queries) |
| 9 |
Correct |
0 ms |
344 KB |
OK (9 queries) |
| 10 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 11 |
Correct |
0 ms |
344 KB |
OK (4 queries) |
| 12 |
Correct |
0 ms |
344 KB |
OK (5 queries) |
| 13 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 14 |
Correct |
0 ms |
344 KB |
OK (16 queries) |
| 15 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 16 |
Correct |
0 ms |
368 KB |
OK (34 queries) |
| 17 |
Incorrect |
0 ms |
344 KB |
Integer parameter [name=k] equals to 0, violates the range [1, 35] |
| 18 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
OK (5 queries) |
| 2 |
Correct |
0 ms |
344 KB |
OK (6 queries) |
| 3 |
Correct |
0 ms |
344 KB |
OK (10 queries) |
| 4 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 5 |
Correct |
0 ms |
344 KB |
OK (13 queries) |
| 6 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 7 |
Correct |
0 ms |
344 KB |
OK (17 queries) |
| 8 |
Correct |
0 ms |
344 KB |
OK (7 queries) |
| 9 |
Correct |
0 ms |
344 KB |
OK (9 queries) |
| 10 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 11 |
Correct |
0 ms |
344 KB |
OK (4 queries) |
| 12 |
Correct |
0 ms |
344 KB |
OK (5 queries) |
| 13 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 14 |
Correct |
0 ms |
344 KB |
OK (16 queries) |
| 15 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 16 |
Correct |
0 ms |
368 KB |
OK (34 queries) |
| 17 |
Incorrect |
0 ms |
344 KB |
Integer parameter [name=k] equals to 0, violates the range [1, 35] |
| 18 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
OK (5 queries) |
| 2 |
Correct |
0 ms |
344 KB |
OK (6 queries) |
| 3 |
Correct |
0 ms |
344 KB |
OK (10 queries) |
| 4 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 5 |
Correct |
0 ms |
344 KB |
OK (13 queries) |
| 6 |
Correct |
0 ms |
344 KB |
OK (26 queries) |
| 7 |
Correct |
0 ms |
344 KB |
OK (17 queries) |
| 8 |
Correct |
0 ms |
344 KB |
OK (7 queries) |
| 9 |
Correct |
0 ms |
344 KB |
OK (9 queries) |
| 10 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 11 |
Correct |
0 ms |
344 KB |
OK (4 queries) |
| 12 |
Correct |
0 ms |
344 KB |
OK (5 queries) |
| 13 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 14 |
Correct |
0 ms |
344 KB |
OK (16 queries) |
| 15 |
Correct |
0 ms |
344 KB |
OK (11 queries) |
| 16 |
Correct |
0 ms |
368 KB |
OK (34 queries) |
| 17 |
Incorrect |
0 ms |
344 KB |
Integer parameter [name=k] equals to 0, violates the range [1, 35] |
| 18 |
Halted |
0 ms |
0 KB |
- |
