[LeetCode 1224] Maximum Equal Frequency Given an arraynumsof positive integers, return the longest possible length of an array prefix ofnums, such that it is possible to remove exactly one element from this prefix so that every number that has appeared in it will have the same number of occ...
【leetcode】1224. Maximum Equal Frequency 题目如下: Given an arraynumsof positive integers, return the longest possible length of an array prefix ofnums, such that it is possible to remove exactly one element from this prefix so that every number that has appeared in it will have the same n...
Design a stack-like data structure to push elements to the stack and pop the most frequent element from the stack. Implement theFreqStackclass: FreqStack()constructs an empty frequency stack. void push(int val)pushes an integervalonto the top of the stack. int pop()removes and returns the ...
1classFreqStack {23varfreq: [Int: Int]//num: freq4vargroup: [Int: [Int]]//freq: stack of elements w/ same freq5varmaxFreq: Int67init() {8self.freq =[Int: Int]()9self.group =[Int: [Int]]()10self.maxFreq =011}1213func push(_ x: Int) {14let f = (freq[x] ??0) +1...
Given an array nums of positive integers, return the longest possible length of an array prefix of nums, such that it is possible to remove exactly one element from this prefix so that every number that has appeared in it will have the same number of occurrences. ...