Leetcode 题目解析之 Remove Element

Given an array and a value, remove all instances of that value in place and return the new length.

The order of elements can be changed. It doesn't matter what you leave beyond the new length.

代码语言：txt复制

    public int removeElement(int[] nums, int val) {
        if (nums == null || nums.length == 0) {
            return 0;
        }
        int len = 0;
        for (int i = 0; i < nums.length; i  ) {
            if (nums[i] != val) {
                nums[len  ] = nums[i];
            }
        }
        return len;
    }

it return

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