Instacart LeetCode Questions
15 questions all-time · 4 easy · 8 medium · 3 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Time Based Key-Value Store Hash Table, String, Binary Search, Design | Medium | 100 | 49.4% |
| 2 | Check if Every Row and Column Contains All Numbers Array, Hash Table, Matrix | Easy | 96 | 52.8% |
| 3 | Find First and Last Position of Element in Sorted Array Array, Binary Search | Medium | 80 | 46.8% |
| 4 | Squares of a Sorted Array Array, Two Pointers, Sorting | Easy | 75 | 73.2% |
| 5 | Wildcard Matching String, Dynamic Programming, Greedy, Recursion | Hard | 69 | 29.9% |
| 6 | Best Time to Buy and Sell Stock Array, Dynamic Programming | Easy | 60 | 55.3% |
| 7 | Valid Number String | Hard | 60 | 21.6% |
| 8 | Minimum Number of Arrows to Burst Balloons Array, Greedy, Sorting | Medium | 60 | 60.4% |
| 9 | Maximum Number of Events That Can Be Attended Array, Greedy, Sorting, Heap (Priority Queue) | Medium | 60 | 32.9% |
| 10 | Search Insert Position Array, Binary Search | Easy | 60 | 49.0% |
| 11 | Valid Sudoku Array, Hash Table, Matrix | Medium | 60 | 62.3% |
| 12 | Non-overlapping Intervals Array, Dynamic Programming, Greedy, Sorting | Medium | 60 | 55.5% |
| 13 | Merge Intervals Array, Sorting | Medium | 60 | 49.4% |
| 14 | Word Search II Array, String, Backtracking, Trie, Matrix | Hard | 60 | 37.3% |
| 15 | Average Waiting Time Array, Simulation | Medium | 60 | 73.1% |
How to read this list
The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.
Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. Acceptance is the share of submissions that pass on LeetCode. Click any question to open it on LeetCode.