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This article shows you how to use leetcode in golang to find the number of times a number appears in an array. The content is concise and easy to understand. It will definitely make your eyes shine. I hope you can gain something through the detailed introduction of this article.

In an array of numbers, all but one number appear three times. Please find the number that appears only once.

Example 1:

Input: nums = [3,4,3,3]

Output: 4

Example 2:

Input: nums = [9,1,7,9,7,9,7]

Output: 1

Limitations:

1

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