class Solution {
public:
void reOrderArray(vector<int> &array) {
int end=array.size()-1;
int start=0;
while(start<end){
while (array[start]&1) {
start++;
}
while((array[end]&1)!=1)
end--;
if(start<end)
swap(array[start],array[end]);
}
}
};