---
title: "Discussion on \"LeetCode 268: Missing Number\" | Hashnode"
description: "Discussion on \"LeetCode 268: Missing Number\". class Solution {\npublic:\n    int missingNumber(vector<int>& nums) {\n        int result = nums.size();\n\n        for (int i = 0; i < nums.size(); i++) {\n            result ^= i ^ nums[i];\n        }\n\n        return result;\n    }\n};\n\nQuestion\nGiven an ar..."
url: "https://hashnode.com/posts/leetcode-268-missing-number/685e4ee1e9eeb54f904f9f96"
---

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# [LeetCode 268: Missing Number](https://blog.brucelinweb.com/leetcode-268-missing-number?utm_source=hashnode&utm_medium=feed)

class Solution { public: int missingNumber(vector<int>& nums) { int result = nums.size(); for (int i = 0; i < nums.size(); i++) { result ^= i ^ nums\[i\]; } return result; } }; Question Given an ar...

Jun 27, 2025 · 2 min read · blog.brucelinweb.com  
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