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Implement Two Sum
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Implement Two Sum

EasyPython

Problem

Write a function to implement the two-sum problem.

Given an integer array nums and integer target, return the indices of two distinct elements whose values add up to target. Assume exactly one solution exists, and return the indices in ascending order.

Contract

Implement two_sum(nums, target). Return a list containing the two zero-based indices.

Constraints

  • 2 <= len(nums) <= 1000
  • -10^9 <= nums[i] <= 10^9
  • -10^9 <= target <= 10^9
  • Exactly one valid pair exists
  • The same array element cannot be used twice

Function Signature

def two_sum(nums, target):
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