0027-remove-element.c

//移动快慢指针
int removeElement(int* nums, int numsSize, int val) {
    int i = 0;
    for(int j = 0; j < numsSize; j++) {
        if(nums[j] != val) {
            nums[i++] = nums[j];
        }
    }
    return i;
}