carloscn / structstudy

Leetcode daily trainning by using C/C++/RUST programming.
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leetcode1470:重新排列数组(shuffle-the-array) #233

Open carloscn opened 1 year ago

carloscn commented 1 year ago

问题描述

给你一个数组 nums ,数组中有 2n 个元素,按 [x1,x2,...,xn,y1,y2,...,yn] 的格式排列。

请你将数组按 [x1,y1,x2,y2,...,xn,yn] 格式重新排列,返回重排后的数组。

 

示例 1:

输入:nums = [2,5,1,3,4,7], n = 3 输出:[2,3,5,4,1,7] 解释:由于 x1=2, x2=5, x3=1, y1=3, y2=4, y3=7 ,所以答案为 [2,3,5,4,1,7]

示例 2:

输入:nums = [1,2,3,4,4,3,2,1], n = 4 输出:[1,4,2,3,3,2,4,1] 示例 3:

输入:nums = [1,1,2,2], n = 2 输出:[1,2,1,2]  

提示:

1 <= n <= 500 nums.length == 2n 1 <= nums[i] <= 10^3

来源:力扣(LeetCode) 链接:https://leetcode.cn/problems/shuffle-the-array

carloscn commented 1 year ago

问题分析

pub fn shuffle(nums: Vec<i32>, n: i32) -> Vec<i32>
{
    let mut ret:Vec<i32> = vec![];

    for i in 0..n as usize {
        ret.push(nums[i]);
        ret.push(nums[n as usize + i]);
    }

    return ret;
}
carloscn commented 1 year ago

code

https://review.gerrithub.io/c/carloscn/structstudy/+/554671 https://github.com/carloscn/structstudy/commit/53b9f2c2cd1826b9695273a1276574c014470b96