583. Delete Operation for Two Strings Given two strings word1 and word2, return the minimum number of steps required to make word1 and word2 the s...
def is_leap_year(year):if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:print("yes")else:print("no...
水利万物而不争,
而万物莫能与之争。