Function insert

CPP/arrays/DuplicateZeroes.cpp:4–8

public:

        void insert(vector<int>& arr,int i,int j)
         {
          if(j<arr.size())
                arr[j] = arr[i];
        }
        void duplicateZeros(vector<int>& arr) {
        int zeroes=0;
        for(int i : arr)