Given three integer arrays nums1
, nums2
, and nums3
, return a distinct array containing all the values that are present in at least two out of the three arrays. You may return the values in any order.
Example 1:
Input: nums1 = [1,1,3,2], nums2 = [2,3], nums3 = [3]
Output: [3,2]
Explanation: The values that are present in at least two arrays are:
- 3, in all three arrays.
- 2, in nums1 and nums2.
Example 2:
Input: nums1 = [3,1], nums2 = [2,3], nums3 = [1,2]
Output: [2,3,1]
Explanation: The values that are present in at least two arrays are:
- 2, in nums2 and nums3.
- 3, in nums1 and nums2.
- 1, in nums1 and nums3.
Example 3:
Input: nums1 = [1,2,2], nums2 = [4,3,3], nums3 = [5]
Output: []
Explanation: No value is present in at least two arrays.
Constraints:
-
1 <= nums1.length, nums2.length, nums3.length <= 100
-
1 <= nums1[i], nums2[j], nums3[k] <= 100
SOLUTION:
class Solution:
def twoOutOfThree(self, nums1: List[int], nums2: List[int], nums3: List[int]) -> List[int]:
nums1 = set(nums1)
nums2 = set(nums2)
nums3 = set(nums3)
checklist = set.union(nums1, nums2, nums3)
op = []
for num in checklist:
ctr = 0
if num in nums1:
ctr += 1
if num in nums2:
ctr += 1
if num in nums3:
ctr += 1
if ctr >= 2:
op.append(num)
return op
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