#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(true){
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 |
0 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 |
Incorrect |
1 ms |
344 KB |
Hair color 14 was used multiple times |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
Incorrect |
1 ms |
344 KB |
Hair color 14 was used multiple times |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
Incorrect |
1 ms |
344 KB |
Hair color 14 was used multiple times |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
Incorrect |
1 ms |
344 KB |
Hair color 14 was used multiple times |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
Incorrect |
1 ms |
344 KB |
Hair color 14 was used multiple times |
5 |
Halted |
0 ms |
0 KB |
- |