Your question is Basic Two Sum Problem. Start with the requirements on the right.
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An Itlize Global analytics dashboard receives a list of integer metric values and a target total. Find the two values whose sum equals the target and return their zero-based indices.
You may not use the same array element twice. Each valid input contains exactly one solution. Return the indices in ascending order. If no pair exists, return an empty list.
Implement two_sum(nums, target).
nums, a list of integers, and target, an integer.target, or [] if no pair exists.Use a dictionary to remember values already visited, allowing each complement lookup to be performed efficiently.
def two_sum(nums, target):