Cod sursa(job #3323907)

Utilizator georeg3sigmer georeg3 Data 20 noiembrie 2025 12:44:18
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.38 kb
#include <bits/stdc++.h>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int v[100005];
int main()
{
    int n, m;
    fin >> n;
    for(int i=1; i<=n; i++)
        fin >> v[i];
    fin >> m;
    for(int i=1; i<=m; i++)
    {
        int op, x, ans=-1;
        int ans2=-1;
        fin >> op >> x;
        int st=0, dr=n;
        if(op==0)
            while(st<=dr)
            {
                int mij=(st+dr)/2;
                if(v[mij]==x)
                {
                    ans=mij;
                    st=mij+1;
                    ans2=v[mij];
                }
                else if(v[mij]<x)
                    st=mij+1;
                else
                    dr=mij-1;
            }
        else if(op==1)
            while(st<=dr)
            {
                int mij=(st+dr)/2;
                if(v[mij]<=x)
                {
                    ans=mij;
                    st=mij+1;
                }
                else
                    dr=mij-1;
            }
        else
            while(st<=dr)
            {
                int mij=(st+dr)/2;
                if(v[mij]<x)
                    st=mij+1;
                else
                {
                    ans=mij;
                    dr=mij-1;
                }
            }
        fout << ans << "\n";
    }
    return 0;
}