How to Swap Two Numbers Without a Third Variable in C| Arithmetic vs Bitwise XOR Methods|C Program |

Опубликовано: 01 Июнь 2026
на канале: Free Coding
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In this tutorial, we dive into one of the most common C programming interview questions: swapping two numbers without a third variable. We’ll explain the logic behind using simple math (addition and subtraction) and show you a secondary method using the bitwise XOR operator.

The logic behind a = a + b, b = a - b, and a = a - b.Alternative bitwise XOR approach for efficiency.

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