Prefix Sum | Range Sum Queries | DSA
Автор: CodeQuotient
Загружено: 2026-02-04
Просмотров: 2
Описание:
This video explains how to solve Range Sum Queries efficiently using the Prefix Sum technique. Instead of calculating the sum for every query separately, we preprocess the array using Prefix Sum and answer each query in O(1) time.
The video covers:
Clear explanation of Prefix Sum concept
Step-by-step solution for range sum queries
Time and space complexity analysis
Example walkthrough for better understanding
Timestamps:
00:00 Introduction to the video
00:28 Understanding of Question through example
01:40 Solution approach to solve the problem
04:35 Example of Range Sum Query
Prefix Sum, Prefix Sum Array, Range Sum Query, Range Sum Queries, Array Prefix Sum, Data Structures And Algorithms, DSA, Competitive Programming, Coding Interview Questions, Array Problems, Efficient Algorithms, Time Complexity Optimization, Preprocessing Technique, Programming Concepts
#PrefixSum #RangeSumQuery #PrefixSumArray #DSA #CompetitiveProgramming #CodingInterviewPreparation #ArrayProblems #Algorithms #Programming #LearnDSA #Coding
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