24 lines
439 B
Markdown
24 lines
439 B
Markdown
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Given an integer array `nums`, return `true` if any value appears **at least twice** in the array, and return `false` if every element is distinct.
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**Example 1:**
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Input: nums = [1,2,3,1]
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Output: true
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**Example 2:**
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Input: nums = [1,2,3,4]
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Output: false
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**Example 3:**
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Input: nums = [1,1,1,3,3,4,3,2,4,2]
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Output: true
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**Constraints:**
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* `1 <= nums.length <= 105`
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* `-109 <= nums[i] <= 109`
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