mycode 42.30%,
Note: If the symbol is not considered, -1//3=-1 instead of 0, because it is rounded down
class Solution(object):
def evalRPN(self, tokens):
“””
:type tokens: List[s
Tag: Notation
PAT Basic 1024 Scientific Counting Method (20 points) Advanced 1073 Scientific Notation (20 points)
Scientific notation is a convenient method used by scientists to represent very large or very small numbers. It satisfies the regular expression [+-][1-9]. [0-9]+E[+-][0-9]+, that is, the integer p