Rare 'Alien' Sharks Filmed in Deep Pacific Waters by Underwater Vehicles

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Deep-sea research vehicles have captured footage of unusual sharks in the depths of the Pacific Ocean. The sharks, described as having an otherworldly or 'alien' appearance, were spotted far beneath the ocean surface. The sightings were made possible by advances in deep-sea exploration technology. Such encounters provide scientists with rare opportunities to study little-known shark species in their natural habitat. The discovery adds to growing knowledge about marine life in the largely unexplored deep ocean.

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How a Hash Map Trick Cuts Two-Sum Interview Problem from O(n²) to O(n)

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