#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,popcnt,sse4,abm")
#include <bits/stdc++.h>
using namespace std;
int n;
int ask(int v){
cout<<"? "<<v<<endl;
int ret;
cin>>ret;
return ret;
}
void solve64(){
ask(1);
int lst=1;
int lit=2;int rit=n;
for(int i=1;i<=64;i++){
if(i%2==1){
int v=rit;
int vl=ask(rit--);
if(vl==0){
cout<<"! "<<abs(v-lst)<<endl;exit(0);
}
lst=v;
}else{
int v=lit;
int vl=ask(lit++);
if(vl==0){
cout<<"! "<<abs(v-lst)<<endl;exit(0);
}
lst=v;
}
}
}
signed main(){
cin>>n;
if(n<=64){
solve64();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
208 KB |
Token parameter [name=cmd] equals to "!", doesn't correspond to pattern "[?=]" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
208 KB |
Token parameter [name=cmd] equals to "!", doesn't correspond to pattern "[?=]" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
208 KB |
Token parameter [name=cmd] equals to "!", doesn't correspond to pattern "[?=]" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
208 KB |
Token parameter [name=cmd] equals to "!", doesn't correspond to pattern "[?=]" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
208 KB |
Token parameter [name=cmd] equals to "!", doesn't correspond to pattern "[?=]" |
2 |
Halted |
0 ms |
0 KB |
- |