/* Written by James Carter (ee15fay) */
/* This program reads a character string input followed by a series of replacement instructions. Those instructions are then
 * applied to the character string */
#include <stdio.h>

int main(){

   int i=0, j=0, charactercount=0, charactertotal, previousinput1=1, previousinput2=0;
   int numberofreplacements=0, totalnumberofreplacements;
   /* Initialize string allocating space for up to 15 characters. Allocate 15 permutation 2 spaces for each replacement string */
   char string[15], replace[210], with[210], testcharacter = 'a';
   /* Get string and read charcters up until newline character */
   printf("String: ");
      while (testcharacter != '\n'){
         scanf("%c", string[charactercount]);
         testcharacter = string[charactercount];
         charactercount++;
        charactertotal=charactercount;
      }
       /* So long as both characters input for the replace prompt aren't the same, continue to gather replacement input */
       while (previousinput1 != previousinput2){
          printf("Replace: ");
          scanf("%c", replace[numberofreplacements]);
          scanf("%c", with[numberofreplacements]);
          previousinput1=replace[numberofreplacements];
          previousinput2=with[numberofreplacements];
          numberofreplacements++;
          totalnumberofreplacements = numberofreplacements;
       }
      /* Apply replacement input by moving through strings with incrementation */
       for (j=0; j<=(totalnumberofreplacements-1); j++){
           for (i=0; i<=(charactertotal-1); i++){
               if (string[i] == replace[j])
                string[i] = with[j];
             }
       }
  for (i=0; i<=(charactertotal-1); i++){
/* print result */
  printf("%c\n", string[i]);
}
return 0;
}
~