Wavelet Trees
Resources:
Rachit blog
cf blog
cf blog for problem
Youtube Tutorial:
1. GKCS
2. Errichto
3. rachit
Implementation:
স্টেবল ম্যারেজ প্রবলেম
Round Trip
Problem Link: Round Trip
Resources:
Checking a graph for acyclicity and finding a cycle in O(M)
Detect cycle in an undirected graph using BFS
Detect cycle in an undirected graph
Implementation:
Maximum Number of Points in a Line
Resources:
wikipedia.org ==>> Collinearity
GFG
How To Determine If Points Are Collinear In Coordinate Geometry?
Collinear
Maximum Number of Points in a Line
Implementation basis Spoj & Codechef problem:
A* search algorithm
Resources:
wikipedia.org ==> A*_search_algorithm
hackerearth blog
GFG
stanford.edu
hackerrank Problems
implementation from Youtube Video:
Expression parsing