Using code in Trello Cards

Question

In Markdown, you should be able to specify a block of code that will not trim whitespace by using four spaces in front of every line of code. Why doesn't it work?

Answer 1

It does work, you are mostly likely placing a block after a list. Consider separating it with a header

---
    #include<stdio.h>
    int main()
^ Four spaces

Will turn into this in your card

---

#include<stdio.h>
int main()

Answer 2

It will only work in the card description, it doesn't work in the card comments.