G - 查找最大元素

#include<stdio.h>
#include<string.h>
int main()
{
  int i,lon;
  char max,a[200];
  while (~scanf("%s", &a))
  {
    max = a[0];
    lon = strlen(a);
    for (i = 1;i<lon; i++)
    {
      if (max<a[i])
        max = a[i];
    }
    for (i = 0; i < lon; i++)
    {
      if (max==a[i])
        printf("%c(max)", a[i]);
      else
        printf("%c", a[i]); 
    }
    printf("\n");
    memset(a, '\0', lon);
  }
  return 0;
}