Easy49.2% acceptance
Two Sum
Find two numbers in an array that add up to a given target.
Topics
ArraysHashing
Examples
Input: nums = [2,7,11,15], target = 9
Output: [0,1]
2 + 7 = 9.
Input: nums = [3,2,4], target = 6
Output: [1,2]
2 + 4 = 6.
Expected Complexity
O(n) time and O(n) space using a hash map.
What happens after Submit?
ERROR DNA analyzes your submission and identifies recurring patterns in your mistakes.
solution.cppC++17
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C++17