[codeforces934E]A Colourful Prospect
试题描述
Firecrackers scare Nian the monster, but they're wayyyyy too noisy! Maybe fireworks make a nice compleme ......
[TC_SRM_460]TheCitiesAndRoadsDivOne
试题描述
John and Brus have become very famous people all over the world, especially in Bolivia. Once they decided ......