4位数排序

#include<stdio.h>
int main()
{
	int a, b, c, d, t;
	scanf_s(" %d%d%d%d ", &a,&b,&c,&d);
	if (a > b)t = a, a = b, b = t;
	if (a > c)t = a, a = c, c = t;
	if (a > d)t = a, a = d, d = t;
	if (b > c)t = b, b = c, c = t;
	if (b > d)t = b, b = d, d = t;
	if (c > d)t = c, c = d, d = t;
	printf("%d<%d<%d<%d", a, b, c, d);
	return 0;
}