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//Applies BFS from both source and destination side and checks after each iteration if the visited | |
//list from each side are intersecting at any point. If yes, then thats the meeting point and gives the | |
//path from source to that point and from that point to destination | |
#include <iostream> | |
#include <vector> | |
#include <list> | |
#include <algorithm> | |
#include <stdlib.h> | |
using namespace std; |