https://algorithmsin60days.com/tags/cheatsheet/Recent content in Cheatsheet on Algorithms in 60 DaysHugoen-usMon, 06 Jul 2026 10:00:00 +0500https://algorithmsin60days.com/blog/data-structures-cheatsheet/Mon, 06 Jul 2026 10:00:00 +0500https://algorithmsin60days.com/blog/data-structures-cheatsheet/<h1 id="the-data-structures-cheatsheet-time--space-complexity-for-every-structure-you-need"> <a class="header-anchor" href="#the-data-structures-cheatsheet-time--space-complexity-for-every-structure-you-need">The Data Structures Cheatsheet: Time &amp; Space Complexity for Every Structure You Need</a> </h1> <p>Bookmark this page. Whether you&rsquo;re cramming the night before a FAANG interview or just need to double-check whether deleting from a heap is O(log n) or O(n), this cheatsheet covers the ten data structures that account for nearly every coding interview question: <strong>arrays, linked lists, stacks, queues, hash maps, sets, trees, heaps, graphs, and tries</strong>.</p> <p>For each structure you&rsquo;ll find the time complexity of the core operations (average and worst case), space complexity, a minimal Python snippet, and the situations where it&rsquo;s the right tool. Every section links to the full lesson in our <a href="https://algorithmsin60days.com/curriculum/">60-day curriculum</a> if you want to go deeper.</p>