Closed maggieliu05 closed 1 week ago
@brebenelmihnea i think you wrote this
Combinations haven't been introduced yet. I think this problem would be better suited for this module: https://usaco.guide/gold/combo?lang=cpp
yeah to whoever submitted this issue here's your chance to ask about his explanation
Someone submitted the contact form!
URL: https://usaco.guide/silver/intro-bitwise Module: Silver - Intro to Bitwise Operators Topic: Unclear Explanation Message: For XOR Pyramids, how do you get from the formula for pascal's triangle to using prefix sums?