ntree.aiContains Duplicate
Contains Duplicate
easysolvedattempted
Given an array of integers nums, return true if any element appears more than once, and false if all the elements are different.
Example 1:
Input: nums = [4, 7, 1, 9, 7]
Output: true
Explanation: 7 appears twice.
Example 2:
Input: nums = [4, 7, 1, 9]
Output: false
Constraints:
1 <= length of nums <= 10^5-10^9 <= nums[i] <= 10^9
def containsDuplicate(nums: list[int]) -> bool: pass Press Visualise to step through your code.