<ul data-eligibleForWebStory="false"><li>Day 4 of #100DaysOfCode focused on learning pointers in C++, understanding memory concepts, and exploring pass-by-value vs pass-by-reference.</li><li>Key takeaways include the usage of the address-of operator (&), pointers (*), dereferencing, null pointers, and the differences between reference variables and pointers.</li><li>Code snippets were provided to showcase how pointers are used in C++ and their significance in managing memory.</li></ul>

Day 4 of #100DaysOfCode

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