Explanation: Total number of unique elements are 3, i.e[1,2,3] and Therefore return 3 after assigning [1,2,3] in the beginning of the array. Explanation: Total number of unique elements are 4, i.e[1,2 ...

Even though they bear little responsibility for the current state of the world's environment, young people have been taking the initiative in tackling problems from rising global temperatures to ...

Thanks to funding by the U.S. National Science Foundation, scientists have developed a new way for removing PFAS from drinking water. PFAS, short for per- and polyfluoroalkyl substances and often ...

Abstract: Distributed phased arrays have recently garnered interest in applications such as satellite communications and high-resolution remote sensing. High-performance coherent distributed ...

Gene editing techniques may eventually allow trisomy to be treated at the cellular level, according to an in vitro proof-of-concept study. Down syndrome is caused by the presence of a third copy of ...

We may receive a commission on purchases made from links. Sweat stains are among some of the most frustrating laundry conundrums. While there are a variety of commercial stain removers designed for ...

We may receive a commission on purchases made from links. A metal fence is a fantastically durable and affordable fencing idea to enclose your yard. But, as is the nature of metal, when exposed to the ...

A newly developed hydrogel can safely remove microplastics from water, a study reveals. The study is published in Nanoscale, and it highlights the importance of finding new ways to remove these ...