codility

Coding Test
[Codility] Stacks and Queues. Brackets
https://app.codility.com/programmers/lessons/7-stacks_and_queues/brackets/ A string S consisting of N characters is considered to be properly nested if any of the following conditions is true: S is empty;S has the form "(U)" or "[U]" or "{U}" where U is a properly nested string;S has the form "VW" where V and W are properly nested strings. For example, the string "{[()()]}" is properly nested bu..
→2021.08.14
Coding Test
[Codility] Algorithmic skills. FirstUnique
https://app.codility.com/programmers/trainings/4/first_unique/ A non-empty array A consisting of N integers is given. The unique number is the number that occurs exactly once in array A. For example, the following array A: A[0] = 4 A[1] = 10 A[2] = 5 A[3] = 4 A[4] = 2 A[5] = 10 contains two unique numbers (5 and 2). You should find the first unique number in A. In other words, find the unique nu..
→2021.08.13

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