c语言比较三个数的大小

#include<stdio.h>
main()
{
   int a = 0;
   int b = 0;
   int c = 0;
   scanf("%d%d%d",&a,&b,&c);//a=1b=2c=3
   if(a<b)
   {
      int tmp = a;
      a=b;
      b=tmp
   }
   
   if(a<c)
   {
     int tmp = a;
     a=c;
     c=tmp
   }
   if(b<c)
   {
     int tmp = b;
     b=c;
     c=tmp;
   }
   printf("%d %d %d\n",a,b,c);
}