[LeetCode] 027. Remove Element (Easy) (C++)

索引:[LeetCode] Leetcode 题解索引 (C++/Java/Python/Sql)

Github: https://github.com/illuz/leetcode


027. Remove Element (Easy)

链接

题目:https://oj.leetcode.com/problems/remove-element/

代码(github):https://github.com/illuz/leetcode

题意

删除一个数组里值为 elem 的所有数。

分析

用两个指针,一个为可放位置的指针,一个为扫描指针。

因为不难,Java 和 Python 的做法都和 C++ 一样,这里就不给出了。

代码

C++:

class Solution {
public:
    int removeElement(int A[], int n, int elem) {
        int ret = 0;
        for (int i = 0; i < n; i++)
            if (A[i] != elem)
                A[ret++] = A[i];
        return ret;
    }
};
时间: 2024-10-12 07:25:00

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