C语言问题急解

下面是程序：#include <stdio.h>int main(){ int a,b; int max; scanf ("%d,%d",&a,&b); max=a>b?a:b; printf ("max=%d",max); return 0;}下面是结果检验：还有问题吗，谢谢采纳，Thanks♪(･ω･)ﾉ