Your question is 3Sum and Parentheses Generation. Start with the requirements on the right.
Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.
Licious may need one algorithmic service to process numeric combinations and construct valid packaging expression patterns. Implement both operations: find every unique triplet that sums to zero, and generate every valid sequence containing n pairs of parentheses.
Implement solve_3sum_and_parentheses(nums, n):
nums is a list of integers. Return all unique triplets [a, b, c] such that a + b + c == 0. Each triplet must be sorted in nondecreasing order, and the collection must not contain duplicates.n is a nonnegative integer. Return all strings containing exactly n opening and n closing parentheses that are balanced and properly nested.Return a dictionary with keys triplets and parentheses. The triplets should be produced in lexicographic order, and parentheses should be generated with opening parentheses attempted before closing parentheses.
def solve_3sum_and_parentheses(nums, n):