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 ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

State Key Laboratory of Molecular Engineering, Polymers Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China ...

Deleting cookies is a straightforward task and does not take much of your time. You can either delete all your cookies at once or delete cookies for one specific site ...

Sometimes you might want to get rid of photos of specific people from your iPhone. That could be to erase memories of a past relationship, remove images of acquaintances you no longer keep in touch ...

Browser cookies sometimes get corrupted and don’t function as intended, causing websites to load incorrectly and perhaps even break. When this happens, we can take the drastic approach to correct the ...

College of Chemistry and Chemical Engineering, Research Center for Intelligent and Wearable Technology, Qingdao University, Qingdao 266071, P. R. China ...