Cod sursa(job #2337323)

Utilizator TigoanMateiTigoan Matei-Daniel TigoanMatei Data 6 februarie 2019 11:51:04
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.84 kb
#include <fstream>

using namespace std;

ifstream in("cautbin.in");
ofstream out("cautbin.out");

int n,k,x,y;
int v[100001];

int main()
{
    in>>n;
    for(int i=1;i<=n;i++)
        in>>v[i];
    in>>k;
    for(int i=1;i<=k;i++)
    {
        in>>x>>y;
        int poz=0;
        if(x==0)
        {
            for(int j=(1<<20);j>0;j/=2)
                if(poz+j<=n && v[poz+j]<=y) poz+=j;
            if(v[poz]==y) out<<poz<<'\n';
            else out<<-1<<'\n';
        }
        if(x==1)
        {
            for(int j=(1<<20);j>0;j/=2)
                if(poz+j<=n && v[poz+j]<=y) poz+=j;
            out<<poz<<'\n';
        }
        if(x==2)
        {
            for(int j=(1<<20);j>0;j/=2)
                if(poz+j<=n && v[poz+j]<y) poz+=j;
            out<<poz+1<<'\n';
        }
    }
    return 0;
}