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C. Good Array time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Let's call an array good if there is an element in the array that eq...

D. Zero Quantity Maximization time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given two arrays a and b, each contains n integers. ...

C. Polycarp Restores Permutation time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output An array of integers p1,p2,…,pn is called a permutation i...