Reverse output four digits (the simplest)

Title description: Reverse a four-digit output

Input description: one line, enter an integer n (1000<=n<=9999)

Output description: For each set of input, reverse the corresponding four-digit output

Code

#include<stdio.h>
int main()
{
	int n = 0;
	scanf("%d", &n);//输入一个数
	while (n)//直到n=0跳出循环
	{
		printf("%d", n % 10);//n取余后得到最后一位数，输出这个数
		n=n / 10;//去掉n最后一位数
	}
	return 0;
}

result output

Code Analysis:

If we want to input 1234, then it should output 4321.