max si min

#include <iostream>

using namespace std;
int maxsimin(int st, int dr, int &minim)
{
    int m, max1, max2, minim1, minim2;
    if(st==dr)
    {
        minim=a[st];
        return a[st];
    }
    else
    {
        m=(dr+st)/2;
        max1=masimin(st, m, minim1);
        max2=maxsimin(m+1, dr, minim2);
        if(minim1<=minim2)
            minim=minim1;
        else
            minim=minim2;
        if(max1>max2)
            return max1;
        else
            return max2;
    }
}
int main()
{
    int n,i, x;
    cin>>n;
    for(i=1;i<=n;i++)
        cin>>a[i];
    cout<<maxsimin(1, n, x);

    return 0;