Submission #930495

#	Time	Username	Problem	Language	Result	Execution time	Memory
930495		Faisal_Saqib	Colors (BOI20_colors)	C++17	0 / 100	0 ms	344 KiB

Colors

#include <bits/stdc++.h>
using namespace std;
void found(int c)
{
    cout<<"= "<<c<<endl;
    exit(0);
}
int query(int x)
{
    cout<<"? "<<x<<endl;
    int p;
    cin>>p;
    return p;
}

int main()
{
    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(0);
    int n;
    cin>>n;
    int s=0;
    int e=n;
    while(s+1<e)
    {
        int mid=(s+e)/2;
        query(1);
        if(query(1+(mid)))
        {
            e=mid;
        }
        else{
            s=mid;
        }
    }
    found(e);
    return 0;
}

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