Prefix Sum problems
6 problems, easiest first. Solve in JavaScript or Python.
- Balance Point of a Beamprefix-sum · arrayseasy
- Minimum Opening Depositprefix-sum · arrayseasy
- Longest Balanced Bit Stretchprefix-sum · hash-mapmedium
- Stretches With a Divisible Totalprefix-sum · hash-map · mathmedium
- Count Range-Bounded Sumsprefix-sum · sortinghard
- Shortest Stretch Reaching a Target (With Refunds)queue · prefix-sum · sliding-windowhard
Other topics
Strings 29Arrays 29Hash Map 29Math 22Sorting 19Simulation 16Dynamic Programming 16Greedy 15Two Pointers 13Sliding Window 13Matrix 13Graph 13Heap 12Binary Search 11Parsing 11DevOps 10Tree 10Stack 9Linked List 9Bit Manipulation 9Bfs 9Fintech 8Frontend 8Dfs 7Counting 6Machine Learning 6Data Processing 6Recursion 6Backtracking 6Statistics 5Intervals 5Queue 5Union Find 4Dates 4Divide And Conquer 4Topological Sort 4Stacks 3Geometry 3Binary Search Tree 3Shortest Path 3Trie 3