Cod sursa(job #3183712)
Utilizator | Nicolae Tonitza NToniBoSS | Data | 12 decembrie 2023 19:54:43 |
---|---|---|---|
Problema | Cbinteractiv | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include <bits/stdc++.h>
using namespace std;
int main() {
int n, pas = 1 << 30, sol = 0;
cin >> n;
int st = 1, dr = n + 1;
while(pas){
if(sol + pas <= n){
cout << "? " << sol + pas << endl;
int x;
cin >> x;
if(x == 0)
sol += pas;
}
pas /= 2;
}
cout << "! " << sol + 1 << endl;
return 0;
}