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.
Solution
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class Solution {
public:
void moveZeroes(vector<int>& nums) {
int i=0,j=1;
while(j<nums.size()){
if(nums[i]==0 && nums[j]!=0){
swap(nums[i], nums[j]);
i++; j++;
}
else if(nums[i]==0 && nums[j]==0)j++;
else{
i++;j++;
}
}
}
};