Submission #255353

#	Time	Username	Problem	Language	Result	Execution time	Memory
255353		a_player	Colors (BOI20_colors)	C++14	0 / 100	0 ms	256 KiB

Colors

#include <bits/stdc++.h>

using namespace std;

bool check(int t){
    cout<<"? 1"<<endl;
    int h;
    cin>>h;
    cout<<"? "<<t<<endl;
    cin>>h;
    return !h;
}

int main(){
    int N;
    cin>>N;
    int x=0;
    for(int b=N;b>=1;b/=2){
        while(check(x+b))x+=b;
    }
    cout<<"= "<<x;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 33