Beam search: is a heuristic search algorithm that is an optimization of best-first search that reduces its memory requirement. Beam stack search: integrates backtracking with beam search. Best-first search: traverses a graph in the order of likely importance using a priority queue. Bidirectional search: find the shortest path from an initial vertex to a goal vertex in a directed graph. Bloom filter: a constant time and memory check to see whether a given element exists in a set.
Estimates vary as to how long it took to build the Taj Mahal. Some historians state that it took only 14 years to build it, from 1631-1645, but a more realistic figure is probably 22 years, being completed in 1653.
Built in loving memory of Mumtaz, work began on the Taj Mahal in 1632 and ended in 1653 in an unused area in the south of the walled city of Agra, India. The emperor divided the grounds into four distinct sections: the Taj gateway, the Taj garden (Charbagh), the tomb and the Pietra Dura (the crypt and cenotaphs).