Tag: C++ unordered_set

In some array arr, the values were in arithmetic progression: the values arr – arr are all equal for every 0 <= i < arr.length – 1. Then, a …

Given an array of integers arr, write a function that returns true if and only if the number of occurrences of each value in the array is unique. Example …

Given a paragraph and a list of banned words, return the most frequent word that is not in the list of banned words. It is guaranteed there is at …

Given a time represented in the format “HH:MM”, form the next closest time by reusing the current digits. There is no limit on how many times a digit can …

Same Email addresses can have different forms for example, in the format of “username@domain” – the username part can have the optional dots to separate. The following email addresses …