_27. Remove Element.md

27. Remove Element

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First completed : June 02, 2024

Last updated : July 10, 2024

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Related Topics : Array, Two Pointers

Acceptance Rate : 58.93 %

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Solutions

• e27.java
• e27.py

Java

e27.java

class Solution {
    public int removeElement(int[] nums, int val) {
        int pointer = 0;

        for (int i = 0; i < nums.length; i++) {
            if (nums[i] != val) {
                nums[pointer] = nums[i];
                pointer += 1;
            }
        }
        return pointer;
    }
}

Python

e27.py

class Solution:
    def removeElement(self, nums: List[int], val: int) -> int:
        currentPointer = 0
        for i in range(len(nums)) :
            if not nums[i] == val :
                nums[currentPointer] = nums[i]
                currentPointer += 1
        return currentPointer