G-11. Detect a Cycle in an Undirected Graph using BFS | C++ | Java
G-12. Detect a Cycle in an Undirected Graph using DFS | C++ | Java
G-17. Bipartite Graph | BFS | C++ | Java
G-18. Bipartite Graph | DFS | C++ | Java
G-19. Detect cycle in a directed graph using DFS | Java | C++