计数排序

H 指数

Determine a researcher's h-index by analyzing citations using array sorting and counting techniques efficiently and accu…

数组拆分

Maximize the sum of minimums of n pairs in a 2n integer array using a greedy pairing strategy efficiently.

排序数组

Sort an array using an optimal algorithm, focusing on time and space complexity considerations.

高度检查器

Determine how many students are out of place in a line by comparing their heights to the sorted expected order efficient…

数组的相对排序

Sort arr1 by the relative order of arr2, with remaining elements placed in ascending order.

有多少小于当前数字的数字

In this problem, you need to determine how many numbers are smaller than each element in an array, focusing on array sca…

雪糕的最大数量

Maximize the number of ice cream bars a boy can buy by applying a greedy choice strategy based on cost sorting.

使每位学生都有座位的最少移动次数

Calculate the minimum total moves to seat each student using greedy assignment and invariant validation efficiently.

最小回文排列 I

Build the smallest palindrome by sorting the left half counts and mirroring them around the optional middle character.