carloscn / structstudy

Leetcode daily trainning by using C/C++/RUST programming.
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leetcode1385:两个数组间的距离值(find-the-distance-value-between-two-arrays) #217

Open carloscn opened 1 year ago

carloscn commented 1 year ago

问题分析

给你两个整数数组 arr1 , arr2 和一个整数 d ,请你返回两个数组之间的 距离值 。

「距离值」 定义为符合此距离要求的元素数目:对于元素 arr1[i] ,不存在任何元素 arr2[j] 满足 |arr1[i]-arr2[j]| <= d 。

 

示例 1:

输入:arr1 = [4,5,8], arr2 = [10,9,1,8], d = 2

输出:2 解释: 对于 arr1[0]=4 我们有: |4-10|=6 > d=2 |4-9|=5 > d=2 |4-1|=3 > d=2 |4-8|=4 > d=2 所以 arr1[0]=4 符合距离要求

对于 arr1[1]=5 我们有: |5-10|=5 > d=2 |5-9|=4 > d=2 |5-1|=4 > d=2 |5-8|=3 > d=2 所以 arr1[1]=5 也符合距离要求

对于 arr1[2]=8 我们有: |8-10|=2 <= d=2 |8-9|=1 <= d=2 |8-1|=7 > d=2 |8-8|=0 <= d=2 存在距离小于等于 2 的情况,不符合距离要求

故而只有 arr1[0]=4 和 arr1[1]=5 两个符合距离要求,距离值为 2

示例 2:

输入:arr1 = [1,4,2,3], arr2 = [-4,-3,6,10,20,30], d = 3 输出:2 示例 3:

输入:arr1 = [2,1,100,3], arr2 = [-5,-2,10,-3,7], d = 6 输出:1  

提示:

1 <= arr1.length, arr2.length <= 500 -10^3 <= arr1[i], arr2[j] <= 10^3 0 <= d <= 100

来源:力扣(LeetCode) 链接:https://leetcode.cn/problems/find-the-distance-value-between-two-arrays

carloscn commented 1 year ago

问题分析

pub fn find_the_distance_value(arr1: Vec<i32>, arr2: Vec<i32>, d: i32) -> i32
{
    let mut ret:i32 = 0;

    if arr1.len() < 1 || arr2.len() < 1 {
        return ret;
    }

    for m in &arr1 {
        let mut count = 0;
        for n in &arr2 {
            if i32::abs(*m - *n) > d {
                count += 1;
            } else {
                break;
            }
        }
        if count == arr2.len() {
            ret += 1;
        }
    }

    return ret;
}
carloscn commented 1 year ago

code

https://review.gerrithub.io/c/carloscn/structstudy/+/553843 https://github.com/carloscn/structstudy/commit/a9ca6e7c0fd86133b69c612f61d1cf09ed0ab554