HDU 2025查找最大元素

今天AA。。。。。。

#include<stdio.h>
#include<string.h>
int main( )
{
    int max;
    char str[105];
    while( scanf( "%s",str ) != EOF )
    {
           int i = 0;
           max = 0;
           while( str[i] )
           {
                  if( str[i] > max )
                      max = str[i];
                  ++i;
                  }
           i = 0;
           while( str[i] )
           {
                  printf( "%c",str[i] );
                  if( str[i] == max )
                      printf( "(max)" );
                  ++i;
                  }
           puts( "" );
           }
    return 0;
}

#include <stdio.h>
#include <string.h>
#define M max
int main ( )
{
    int i,j,m,n;
    char s[1000] = {0};
    while ( scanf ( "%s",s ) ==1 )
    {
          m = 0;
          i = 0;
          while ( s[i] != 0 ){
                if ( s[i] > m )
                   m = s[i];
                   ++i;
                   }
          n = strlen ( s );
          for ( i = 0 ; i < n ; ++i )
          {
              if ( s[i] == m )
              { 
                   n = n + 5;
                   for ( j = n; j > i + 5; --j )
                   {
                       s[j] = s[ j - 5 ];
                   }
                   s[i+1] = '(';
                   s[i+2] = 'm';
                   s[i+3] = 'a';
                   s[i+4] = 'x';
                   s[i+5] = ')';
                   i = i + 5;
               }
          }
          printf ( "%s\n",s );
          }
    return 0;
}