Write a Python program to find three numbers from an array such that the sum of three numbers equal to a given number.

Title : Write a Python program to find three numbers from an array such that the sum of three numbers equal to a given number.

Description : Write a Python program to find three numbers from an array such that the sum of three numbers equal to a given number.

Source Code:

def four_Sum(nums, target):

        nums.sort()

        result = []

        for i in range(len(nums) - 3):

            if i and nums[i] == nums[i - 1]:

                continue

            for j in range(i + 1, len(nums) - 2):

                if j != i + 1 and nums[j] == nums[j - 1]:

                    continue

                sum = target - nums[i] - nums[j]

                left, right = j + 1, len(nums) - 1

                while left < right:

                    if nums[left] + nums[right] == sum:

                        result.append([nums[i], nums[j], nums[left], nums[right]])

                        right -= 1

                        left += 1

                        while left < right and nums[left] == nums[left - 1]:

                            left += 1

                        while left < right and nums[right] == nums[right + 1]:

                            right -= 1

                    elif nums[left] + nums[right] > sum:

                        right -= 1

                    else:

                        left += 1

        return result

print(four_Sum([1, 0, -1, 0, -2, 2], 0))

Sample Output:

[[-2, -1, 1, 2], [-2, 0, 0, 2], [-1, 0, 0, 1]]