FenwickTree Problems

Imagine, you have an array of integers of size N. At each index ...

• By TarifEzaz, backbencher16
• FenwickTree, SegmentTree, Sorting
• Hard
• 86/158

There are N numbers in an array. You will have Q queries. In eac...

• By tahmedge
• FenwickTree, NumberTheory, SegmentTree
• Moderate
• 193/266
• uDebug

You are given a string S (of length n) consisting of alphabets o...

• By emrul_mu
• DataStructure, FenwickTree, SegmentTree
• Moderate
• 41/49

Five friends A, B, C, D and E has come to a shop to buy crayons ...

• FenwickTree, MOSAlgorithm, SegmentTree
• Moderate
• 4/16