A. Number Replacementtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAn integer array a1,a2,…,an is being transformed into an array of lowercase E

B. Maximum Substring A binary string is a string consisting only of the characters 0 and 1. You are given a binary string s. For some non-empty substring† t of string s containing x characters 0 and y