Given a list of non-negative numbers and a target integer k, write a function to check if the array has a continuous subarray of size at least 2 that sums up to the multiple of k, that is, sums up to n*k where n is also an integer.
Example 1:
Input: [23, 2, 4, 6, 7],  k=6
Output: True
Explanation: Because [2, 4] is a continuous subarray of size 2 and sums up to 6.
Example 2:
Input: [23, 2, 6, 4, 7],  k=6
Output: True
Explanation: Because [23, 2, 6, 4, 7] is an continuous subarray of size 5 and sums up to 42.
Note:
The length of the array won't exceed 10,000.
You may assume the sum of all the numbers is in the range of a signed 32-bit integer.
class Solution:
     def checkSubarraySum(self, nums, k):
         dict,cur = {},0
         if k == 0:
             zero = 0
             for i in nums:
                 if i == 0 and zero == 1:
                     return True
                 elif i == 0 and zero != 1:
                     zero = 1
                 else:
                     zero = 0
             return False
         for i in range(len(nums)):
             cur += nums[i]
             if i!= 0 and cur % k == 0:
                 print('1')
                 return True
             elif cur % k in dict and cur >= k:
                 print('2')
                 return True
             elif i!= 0 and nums[i] == 0 and nums[i-1] == 0:
                 print('3')
                 return True
             else:
                 dict[cur % k] = True
         return False
         """
         :type nums: List[int]
         :type k: int
         :rtype: bool
         """

class Solution:
     def checkSubarraySum(self, nums, k):
         dict,cur = {},0
         if k == 0:
             zero = 0
             for i in nums:
                 if i == 0 and zero == 1:
                     return True
                 elif i == 0 and zero != 1:
                     zero = 1
                 else:
                     zero = 0
             return False
         for i in range(len(nums)):
             cur += nums[i]
             if i!= 0 and cur % k == 0:
                 print('1')
                 return True
             elif cur % k in dict and cur >= k:
                 print('2')
                 return True
             elif i!= 0 and nums[i] == 0 and nums[i-1] == 0:
                 print('3')
                 return True
             else:
                 dict[cur % k] = True
         return False
         """
         :type nums: List[int]
         :type k: int
         :rtype: bool
         """
