C :

#include<stdio.h>
int main()
{
	int n,i,a,max,min;
	scanf("%d",&n);
	for(i=1; i<=n; i++)
	{
		scanf("%d",&a);
		if(i==1)
		{
			max=a;
			min=a;
		}
		if(a>max)
		{
			max=a;
		}
		if(a<min)
		{
            min=a;
		}

	}
	printf("max=%d, min=%d\n",max,min);
}

C++ :

#include<stdio.h>
int main()
{
    int N,a,max,min,i;
    scanf("%d",&N);
    for(i=1;i<=N;i++)
    {
    	scanf("%d",&a);
    	if(i==1)
    	{
    		max=a;
    		max=a;
		}
		if(a>max)
		{
			max=a;
		}
		if(a<min)
		{
			min=a;
		}
	}
	printf("max=%d, min=%d",max,min);
    return 0;
}

Java :

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[]a=new int[n];
        a[0]=sc.nextInt();
        int max = a[0];
        int min = a[0];
        for (int i = 1; i < n; i++){
            a[i]=sc.nextInt();
            if (a[i]>max){
                max = a[i];
            }
            if (a[i]<min){
                min = a[i];
            }
        }
        System.out.println("max=" + max + ", min=" + min);
    }
}

Python :

# coding=utf-8
#python2
str = raw_input()
list1 = str.split()
#首字符出列
n = int(list1.pop(0))
min = max = int(list1[0])
i = 0
x = n
while i<x:
    m = int(list1.pop())
    if max<m:
        max = m
    if min>m:
        min = m
    i += 1
print("max=%d, min=%d"%(max,min))