[Codility] Lesson4. PermCheck - 문제풀이
Description 주어진 배열의 요소가 1~N까지 요소를 모두 가진 순열인지 여부를 반환하는 문제입니다. A non-empty array A consisting of N integers is given. A permutation is a sequence containing each element from 1 to N once, and only once. For example, array A such that: A[0] = 4 A[1] = 1 A[2] = 3 A[3] = 2 is a permutation, but array A such that: A[0] = 4 A[1] = 1 A[2] = 3 is not a permutation, because value 2 is missing. The goal is..
