Cod sursa(job #2137336)

Utilizator sabinandreiBocan Sabin Andrei sabinandrei Data 20 februarie 2018 18:55:40
Problema Cautare binara Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.15 kb
#include <iostream>
#include <fstream>

using namespace std;

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

long long int a[1000005],n,m,i,j,x,c;

int a0[1000005];

int main()
{
    fin>>n;
    for(i=1;i<=100001;i++)
    {
        a0[i]=-1;
    }
    for(i=1;i<=n;i++)
    {
        fin>>a[i];
    }
    for(i=n;i>=1;i--)
    {
        x=a[i];
        if(a0[x]==-1)
        {
            a0[x]=i;
        }
    }
    fin>>m;
    for(i=1;i<=m;i++)
    {
        fin>>c>>x;
        if(c==0)
        {
            if(a0[x]!=-1)
               fout<<a0[x]<<endl;
            else if(a0[x]==-1)
                fout<<-1<<endl;
        }
        else if(c==1)
        {
            for(j=n;j>=1;j--)
            {
                if(a[j]<=x)
                {
                    fout<<j<<endl;
                    break;
                }
            }
        }
        else
        {
            for(j=1;j<=n;j++)
            {
                if(a[j]>=x)
                {
                    fout<<j<<endl;
                    break;
                }
            }
        }
    }
    return 0;
}