Find The Maximum Number using Recursion.

#include <iostream>
#include <cstdio>
using namespace std;
int b[]={7,4,9,6,2};

int mx(int i, int a[], int n, int mxx){
    if(i == n-1) return mxx;
    mx(i+1,a,n,max(a[i],mxx));
}

int main()
{
    cout<<mx(0,b,5,0)<<endl;
    return 0;
}