Cod sursa(job #3308061)

Utilizator Tudor_CCTudor Cocu Tudor_CC Data 23 august 2025 12:40:27
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.55 kb
#include <bits/stdc++.h>

using namespace std;

int v[100555];

int main()
{
    ifstream cin("cautbin.in");
    ofstream cout("cautbin.out");
    int n,m,c,x;
    cin>>n;
    for(int i=1;i<=n;++i)
    {
        cin>>v[i];
    }
    cin>>m;
    for(int i=1;i<=m;++i)
    {
        cin>>c>>x;
        int st=1,dr=n,mij,in=-1;
        if(c==0)
        {
            while(st<=dr)
            {
                mij=(st+dr)/2;
                if(v[mij]<=x)
                {
                    st=mij+1;
                    in=mij;
                }
                else
                {
                    dr=mij-1;
                }
            }
            if(v[in]!=x)
            {
                in=-1;
            }
            cout<<in<<"\n";
        }
        else if(c==1)
        {
            while(st<=dr)
            {
                mij=(st+dr)/2;
                if(v[mij]<=x)
                {
                    st=mij+1;
                    in=mij;
                }
                else
                {
                    dr=mij-1;
                }
            }
            cout<<in<<"\n";
        }
        else
        {
            while(st<=dr)
            {
                mij=(st+dr)/2;
                if(v[mij]>=x)
                {
                    dr=mij-1;
                    in=mij;
                }
                else
                {
                    st=mij+1;
                }
            }
            cout<<in<<"\n";
        }
    }
    return 0;
}