Cod sursa(job #2784370)

Utilizator aeliusdincaaelius dinca aeliusdinca Data 16 octombrie 2021 13:01:45
Problema Cbinteractiv Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.34 kb
Raporteaza aceasta sursa 
#include<iostream>
using namespace std;
int main()
{
    int n,st,dr,m,sol;
    bool ok;
    cin>>n;
    st=1,dr=n;
    while(st<dr)
    {
        m=(st+dr)/2;
        cout<<"? "<<m<<endl;
        cin>>ok;
        if(ok==0)
            st=m+1;
        else
            dr=m;
    }
    cout<<"! "<<st<<endl;
    return 0;
}