tìm max min trên 16 số đã nhập vào chương trình

#include <stdio.h>
#include <conio.h>
#include <iostream>
using namespace std;
int max(int a, int b)
{
return (a>b)?a:b;
}
int min(int a, int b)
{
return (a<b)?a:b;
}
int main()
{
int x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15,x16;
printf("\n tim max min tren 16 so da nhap vao chuong trinh");
printf("\n nhap gia tri thu 1 den 16: "); scanf("%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d", &x1,&x2,&x3,&x4,&x5,&x6,&x7,&x8,&x9,&x10,&x11,&x12,&x13,&x14,&x15,&x16);
printf("\n max: ");
cout<< max(max(max(max(x1,x2),max(x3,x4)),max(max(x5,x6),max(x7,x8))),max(max(max(x9,x10),max(x11,x12)),max(max(x13,x14),max(x15,x16))));
printf("\n");
printf("\n min: ");
cout<< min(min(min(min(x1,x2),min(x3,x4)),min(min(x5,x6),min(x7,x8))),min(min(min(x9,x10),min(x11,x12)),min(min(x13,x14),min(x15,x16))));
getch();
return 0;
}