Given an array of integersarr, alucky integeris an integer that has a frequency in the array equal to its value. Returnthe largestlucky integerin the array. If there is nolucky integerreturn-1. Example 1: Input:arr = [2,2,3,4]Output:2Explanation:The only lucky number in the array i...
LeetCode Given an array of integersarr, a lucky integer is an integer which has a frequency in the array equal to its value. Returna lucky integerin the array. If there are multiple lucky integers return thelargestof them. If there is no lucky integer return-1. Example 1: Input:arr =...
Given an array of integersarr, a lucky integer is an integer which has a frequency in the array equal to its value. Returna lucky integerin the array. If there are multiple lucky integers return the largest of them. If there is no lucky integer return -1. Example 1: Input: arr = [...
Given an array of integers arr, a lucky integer is an integer which has a frequency in the array equal to its value.Return a lucky integer in the array. If there are multiple lucky integers return the largest of them. If there is no lucky integer return -1.Example...
1281- subtract-the-product-and-sum-of-digits-of-an-integer 1351-count-negative-numbers-in-a-sorted-matrix Interview053-I- Find-Number-In-Sort-Array-I Pictures anima notes template .gitattributes .gitignore README-En.md Readme.md anima.py contributing.md requirements.txt ...
Given an integer k, return the minimum number of Fibonacci numbers whose sum is equal to k. The same Fibonacci number can be used multiple times. The Fibonacci numbers are defined as: F1 = 1 F2 = 1 Fn = Fn-1 + Fn-2 for n > 2. ...
1394. Find Lucky Integer in an Array 解题方法 遍历数组计算每个数字的频率,存入字典,设置返回值rat=-1并遍历字典中的键,如果key - dic[key] == 0,则设置rat = max(rat, key),最后返回rat。 时间复杂度:O(n) 空间复杂度:O(n) 代码 class Solution: def findLucky(self, arr: List[int]) -> in...