1224 Maximum Equal Frequency最大相等頻率 問題描述 給出一個正整數數組 nums,請你幫忙從該數組中找出能滿足下面要求的 最長 前綴,並返回其長度: 從前綴中 刪除一個 元素后,使得所剩下的每個數字的出現次數相同。 如果刪除這個元素后沒有剩余元素存在 ...
Given an arraynumsof positive integers, return the longest possible length of an array prefix ofnums, such that it is possible to removeexactly oneelement from this prefix so that every number that h ...
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1224 Maximum Equal Frequency最大相等頻率 問題描述 給出一個正整數數組 nums,請你幫忙從該數組中找出能滿足下面要求的 最長 前綴,並返回其長度: 從前綴中 刪除一個 元素后,使得所剩下的每個數字的出現次數相同。 如果刪除這個元素后沒有剩余元素存在 ...
Implement `FreqStack`, a class which simulates the operation of a stack-like data structure. FreqS ...
Write a bash script to calculate the frequency of each word in a text file words.txt. For simplicity sake, you may assume: words.txt contains ...
Given a string, sort it in decreasing order based on the frequency of characters. Example ...
Given an array `A` of `0`s and `1`s, divide the array into 3 non-empty parts such that all of these ...
Given a m x n matrix mat and an integer threshold, return the maximum side-length of a square with a sum less than or equal to threshold or return ...
Given a non-negative integer, you could swap two digits at most once to get the maximum valued number. Return the maximum valued number you could ...
1、統計單詞在某個字段出現的頻率次數 term frequency實現使用了function query. 例如統計‘公司’這個關鍵字在text這個字段中出現的次數 在返回的時候進行計算統計,即在返回參數fl中設置為fl=id,freq:termfreq(text ...