题解 | #牛牛的彩虹数组#

import re
#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param nums int整型一维数组 
# @return int整型
#
class Solution:
    def findRainbow(self , nums: List[int]) -> int:
        # write code here
        nums_sum = sum(nums)
        if nums_sum % 7 == 0:
            return 1

        residuals = []
        total = 0
        for num in nums:
            total += num
            if total % 7 == 0:
                return 1
            
            if total % 7 in residuals:
                return 1
            else:
                residuals.append(total % 7)

        return 0