pig_latin.c

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

char* latinize(char *word);

int main() {
    char sentence[100];
    char *token, *word;
    const char delimiter[2] = " ";
    fgets(sentence, 100, stdin);
    sentence[strcspn(sentence, "\n")] = 0;

    token = strtok(sentence, delimiter);

    while( token != NULL ) {
      word = token;
      printf("%s ", latinize(word));

      token = strtok(NULL, delimiter);
    }
    puts("");

    return 0;
}

char* latinize(char *word) {
    static char latinized_word[50];

    char buffer[50];
    strcpy(buffer, &word[1]);
    strncat(buffer, word, 1);
    strcat(buffer, "ay");

    strcpy(latinized_word, buffer);
    return latinized_word;
}