C语言比较三个数大小

#include<stdio.h>

//#include<windows.h>

void main()

{

  int max3(int a,int b,int c);

  int a,b,c,result;

  printf("Pleaseenterthreenumber:\n");

  scanf("%d,%d,%d",&a,&b,&c);

  result=max3(a,b,c);

  printf("Themaxofthreenumberis%d:\n",result);

  //system("pause");

}

int max3(int a,int b,int c)

{

  int x,z;

  if(a>b) x=a;

  else x=b;

  if(x>c) z=x;

  else z=c;

  return z;

}