You are working on a video game, and you need to calculate the base damage from a combo move the player enters on the controller.
You are given a string representing the buttons pressed by the player. These are the possible buttons:
Player input might look like this:
The base damage from a combo is equal to the number of buttons the player pressed in a row without pressing the same button twice in a row. Pressing the same button twice in a row ends the combo.
For the above example, the return value should be
7, because after the 7th button was pressed (the
A button), that same button was pressed again and broke the combo.