fizzbuzz1.c

#include <stdio.h>

int main(void) {
  int n = 600000 * 3;
  int i = 1;
  long c;
  char buf[BUFSIZ];
  setbuf(stdout, buf);
  for (i = 1; i <= n; i++) {
    if (i % 3 == 0 && i % 5 == 0) {
      c += printf("FizzBuzz\n");
    }
    else if (i % 3 == 0) {
      c += printf("Fizz\n");
    }
    else if (i % 5 == 0) {
      c += printf("Buzz\n");
    }
    else {
      c += printf("\%d\n", i);
    }
  }
  fprintf(stderr, "%d\n", c);
  return 0;
}