描述
Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.
Example:
Input: [0,1,0,3,12]
Output: [1,3,12,0,0]
Note:
You must do this in-place without making a copy of the array.
Minimize the total number of operations.
代码
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;
}
}
};
