Arrays 3

    public int[] plusOne(int[] A) {
        int carry = 0;
        int val = A[A.length-1]+1;
        A[A.length-1]  = val%10;
        carry = val/10; 
        ArrayList<Integer> al = new ArrayList<Integer>(); 
        boolean flag = true;
        for(int i=A.length-2;i>=0;i--){
            val = A[i]+carry;
            A[i]  = val%10;
            carry = val/10; 
        }
        
        if(carry>0){
            al.add(carry);
        }
        
        for(int i=0;i<A.length;i++){
            if(A[i]==0 && flag && al.size()==0){
                
            }else{
                flag = false;
                al.add(A[i]);
            }
        }
        
        int rs[] = new int[al.size()];
        for(int i=0;i<al.size();i++){
            rs[i] = al.get(i);
        }
        return rs;
    }