UVa 401 - Palindromes

#include<stdio.h>
#include<string.h>

char one[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789";
char two[]="A   3  HIL JM O   2TUVWXY51SE Z  8 ";

int palin(char str[])
{
int i, j;
j=strlen(str)-1;
for (i=0; i<=j; i++, j--)
{
if(str[i] != str[j])
{
return 0;
}
}
return 1;
}

int pos(char ch)
{
int len=35, i;
for(i=0;i<len;i++)
if(one[i]==ch)
return i;
return len;
}

int mirror(char str[])
{
int i, t, k=strlen(str)-1;
for (i=0; i<=k; i++, k--)
{
t=pos(str[i]);
if (str[k] != two[t])
{
return 0;
}
}
return 1;
}

int main()
{
int n, m, i;
char str[1000];
while(gets(str))
{
/*for (i=0; i<strlen(str); i++)
{
if (str[i] == '0')
str[i]='O';
}*/
n=palin(str);
m=mirror(str);
if (!n && !m)
{
printf("%s -- is not a palindrome.\n\n", str);
continue;
}
if (n && !m)
{
printf("%s -- is a regular palindrome.\n\n", str);
continue;
}
if (!n && m)
{
printf("%s -- is a mirrored string.\n\n",str);
continue;
}
if (n && m)
{
printf("%s -- is a mirrored palindrome.\n\n", str);
continue;
}
}
return 0;
}