Given an array A
of non-negative integers, return an array consisting of all the even elements of A
, followed by all the odd elements of A
.
You may return any answer array that satisfies this condition.
Example 1:
Input: [3,1,2,4] Output: [2,4,3,1] The outputs [4,2,3,1], [2,4,1,3], and [4,2,1,3] would also be accepted.
Note:
1 <= A.length <= 5000
0 <= A[i] <= 5000
class Solution {
public:
vector<int> sortArrayByParity(vector<int>& A) {
int l=A.size();
vector<int> ans(l);
int lp=0,rp=l-1;
for(int i=0;i<l;i++){
if(A[i]%2==0){
ans[lp]=A[i];
lp++;
}
else{
ans[rp]=A[i];
rp--;
}
}
return ans;
}
};