prefix sum

Everything about prefix sum

1. Article · Data Structures and Algorithms (DSA)

   Count Prefix-Balanced Binary Strings - Java Explanation

   Count the number of prefix-balanced binary strings of length 2 * n containing exactly n ones and n zeros, where every prefix has at least as many ones as zeros. This article explains the Dynamic Programming approach in Java, including the DP transition, base case, dry run, Catalan number connection, and time and space complexity.

   Sandhiya PriyaAug 242,1981,000
2. Article · Data Structures and Algorithms (DSA)

   Max After m Range Increments | Difference Array + Prefix Sum

   Optimize range increment operations from O(nm) to O(n+m) using a difference array and prefix sum technique for finding the maximum element.

   Sandhiya PriyaAug 33131,000
3. Article · Java

   Count Substrings with More 1's than 0's

   Efficiently count binary substrings with more 1s than 0s using prefix sums and Fenwick trees in O(N log N) time.

   Sandhiya PriyaJul 6408
4. Article · Data Structures and Algorithms (DSA)

   Split Array into Two Equal Sum Subarrays

   Learn how to efficiently determine if an array can be split into two contiguous subarrays with equal sums using the prefix sum technique. Optimal O(n) solution!

   Sandhiya PriyaApr 235561,000
5. 
   Article · C#

   Mean of Range in Array Using Prefix Sum

   Using the Prefix Sum technique, we can efficiently solve range-based problems like finding the mean of subarrays. This approach is simple, fast, and highly scalable.

   Sandhiya PriyaApr 225221,000