Cod sursa(job #2504324)

Utilizator AndreiStrAndrei Stroici AndreiStr Data 4 decembrie 2019 20:05:15
Problema Cautare binara Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.86 kb
#include <bits/stdc++.h>

using namespace std;
int n,m,a[100001];
int caut_0(int x,int n)
{
    int st=1,dr=n,mi;
    while(st<dr)
    {
        if(a[st]<x)
            st=mi;
        if(a[dr]>x)
            dr=mi;
        if(a[st]==x)
        {
            while(st<=n&&a[st]==x)
                st++;
            st--;
            return st;
        }
        if(a[dr]==x)
        {
            while(dr<=n&&a[dr]==x)
                dr++;
            dr--;
            return dr;
        }
    }
}

int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    cin>>m;
    for(int i=1;i<=m;i++)
    {
        cin>>c>>x;
        if(c==0)
        {
            cout<<caut_0(x,n);
        }
        else if(c==1)
            cout<<caut_1(x);
        else
            cout<<cout_2(x);
    }
    return 0;
}