신입 인공지능 개발자의 논문 허우적 신입 인공지능 개발자의 논문 허우적

문제 Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct. Example 1: Input: nums = [1,2,3,1] Output: true Example 2: Input: nums = [1,2,3,4] Output: false Example 3: Input: nums = [1,1,1,3,3,4,3,2,4,2] Output: true Constraints: 1 bool: visited = set() dup = [x for x in nums if x in visited or (visited.add(x) or Fa..