Suggest an editImprove this articleRefine the answer for “What is the complexity of removing an element from a hash table?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)The average **time complexity of removing an element** from a hash table is **O(1)**. **Key point:** under normal load (load factor < 0.75) and with a good hash function, removal is almost always instant.Shown above the full answer for quick recall.Answer (EN)ImageThe average **time complexity of removing an element** from a hash table is **O(1)**. **Why:** 1. The hash function computes the slot index in constant time. 2. The table accesses the right bucket directly. 3. The element is removed directly, without traversing the whole structure. **But in the worst case:** If a bucket has **many collisions** (for example, it holds a long list), all elements in that bucket must be walked, and then removal takes **O(n)**. **Summary:** - **Average complexity:** O(1) - **Worst case:** O(n) - **Under normal load (load factor < 0.75)** and with a good hash function: removal is almost always instant.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.