#include <stdio.h>
#include <stdlib.h>
void main(){
int f1 = 0, f2 = 1, fn = 0, n;
fn = f1 + f2;
while(fn <= 50000){
fn++;
if (fn%3 == 0 && fn%7 == 0){
printf ("%d\n", fn);}
f1 = f2; f2 = fn; fn = f1 + f2; }
return 0;}
https://www.programiz.com/c-programming/examples/fibonacci-series
https://www.programiz.com/c-programming/examples/fibonacci-series
https://forum.imasters.com.br/topic/540066-algoritmo-que-mostre-os-n%C3%BAmeros-%C3%ADmpares-de-1-a-100/
http://www.educ.fc.ul.pt/icm/icm99/icm41/os100.htm
http://www.educ.fc.ul.pt/icm/icm99/icm41/os100.htm
https://www.vivaolinux.com.br/script/Multiplos-de-2-ou-3
https://www.vivaolinux.com.br/script/Multiplos-de-2-ou-3