fizzbuzz.c

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

//Word count
#define WORD_C 3

//Word definitions
#define WORD_S {"Fizz","Buzz","Bizz"}

//Words will be added only to odd numbers in sequence
#define WORD_F i*2+3

int main() {
    char words[WORD_C][20] = WORD_S;
    int wordc[WORD_C];
    size_t str_size = 0;
    for (int i=0;i < WORD_C;i++) {
        int f = WORD_F;
        wordc[i] = f;
        str_size += strlen(words[i]);
    }
    ++str_size;

    char str[str_size];

    for (int i=1;i < 100;i++) {
        strcpy(str,"\0");
        for (int j=0;j < WORD_C;j++) {
            if (i%wordc[j] == 0) {
                strcat(str,words[j]);
            }
        }
        if (strcmp(str,"\0") == 0) {
            printf("%d\n",i);
            continue;
        }
        puts(str);
    }
    return 0;
}