> For the complete documentation index, see [llms.txt](https://wenbo-notes.gitbook.io/coding/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wenbo-notes.gitbook.io/coding/kattis/easy/coffee-cup-combo.md).

# Coffee Cup Combo

## Question

{% embed url="<https://open.kattis.com/problems/coffeecupcombo>" %}

## Solution

### Idea

This is an easy question. The idea is to use two variables to store the coffee left after each lecture and the number of lectures Jonna can stay awake.

1. If you encounter a coffee machine, update the `left` to be 2 and increment `sum` by 1.
2. Otherwise, if there is coffee left, decrement `left` by 1 and increment `sum` by 1.

### Code

{% @github-files/github-code-block url="<https://github.com/mendax1234/Coding-Problems/blob/main/kattis/coffeecupcombo/coffeecupcombo.c>" %}