21 Survival of Desert Life 沙漠生命的延续① Some desert animals can survive the very strong summer heat and dryness because they have very unusual characteristics.The camel,for example,can hear an increase in the temperature of its body and its blood of 9℃.I
加减乘除 x = 3 print(type(x)) # <class 'int'> print(x, x + 1, x - 1, x * 2, x ** 2) # 3 4 2 6 9 x += 1 print(x) # 4 x *= 2 print(x) # 8 y = 2.5 print(type(y)) # <class 'float'> print(y, y +1, y * 2, y ** 2) # 2.5 3.5
题目链接 题意：求能放进w*h的网格中的不同的n连通块个数(通过平移/旋转/翻转后相同的算同一种)，1<=n<=10,1<=w,h<=n。 刘汝佳的题真是一道比一道让人自闭...QAQ~~ 这道题没什么好的办法，Polya定理也毫无用武之地，只能暴力构造出所有可能的连通块，然后用set判重，比较考验基本功。 连通块可
