Move Zeroes – LeetCode Solution Java , Python 3, Python 2 , C , C++, Best and Optimal Solutions , All you need.
Given an integer array nums
, move all 0
‘s to the end of it while maintaining the relative order of the non-zero elements.
Note that you must do this in-place without making a copy of the array.
Example 1:
Input: nums = [0,1,0,3,12] Output: [1,3,12,0,0]
Example 2:
Input: nums = [0] Output: [0]
Constraints:
1 <= nums.length <= 104
-231 <= nums[i] <= 231 - 1
C++ Move Zeroes LeetCode Solution
class Solution {
public:
void moveZeroes(vector<int>& nums) {
int j = 0;
// move all the nonzero elements advance
for (int i = 0; i < nums.size(); i++) {
if (nums[i] != 0) {
nums[j++] = nums[i];
}
}
for (;j < nums.size(); j++) {
nums[j] = 0;
}
}
};
Java Move Zeroes LeetCode Solution
public void moveZeroes(int[] nums) {
if (nums == null || nums.length == 0) return;
int insertPos = 0;
for (int num: nums) {
if (num != 0) nums[insertPos++] = num;
}
while (insertPos < nums.length) {
nums[insertPos++] = 0;
}
}
Python 3 Move Zeroes LeetCode Solution
def moveZeroes(self, nums):
zero = 0 # records the position of "0"
for i in xrange(len(nums)):
if nums[i] != 0:
nums[i], nums[zero] = nums[zero], nums[i]
zero += 1
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