fizzbuzz.c

#include <stdio.h>

int main() {
    int fizzbuzz[101];
    for (int i = 1; i <= 100; i++)
        fizzbuzz[i] = 0;
    for (int i = 3; i <= 100; i += 3)
        fizzbuzz[i] = 1;
    for (int i = 5; i <= 100; i += 5)
        fizzbuzz[i] = 2;
    for (int i = 15; i <= 100; i += 15)
        fizzbuzz[i] = 3;

    for (int i = 1; i <= 100; i++)
        switch (fizzbuzz[i]) {
            case 0: printf("%d\n", i); break;
            case 1: puts("fizz"); break;
            case 2: puts("buzz"); break;
            case 3: puts("fizzbuzz"); break;
        }
}