Problem A: 調用函數，求三個數中最大數

#include<stdio.h>
int max(int a,int b,int c);
int main()
{
    int a,b,c;
    while(scanf("%d %d %d",&a,&b,&c)!=EOF){
    printf("%d\n",max(a,b,c));}
    return 0;
}

int max(int a,int b,int c)
{
    int m;
    m=a;
    if(b>m)
    m=b;
    if(c>m)
    m=c;
    return m;
}