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![Leetcode 367. Valid Perfect Square [Java]](/_next/image?url=https%3A%2F%2Fi.ytimg.com%2Fvi%2F-xxjvk_Afm4%2Fhqdefault.jpg%3Fsqp%3D-oaymwEjCOADEI4CSFryq4qpAxUIARUAAAAAGAElAADIQj0AgKJDeAE%3D%26rs%3DAOn4CLDkBEFoIYZuHMsk2t9b3dzDa9RiXQ&w=256&q=75)