int workbook(int n, int k, vector<int> arr) {
    int result=0;
    int pages=1;

    for (int i=0; i<n; i++){
        int num_Prob = arr[i];
        int cur_Prob=1;
        do{
            if (num_Prob-k<0){
                if (cur_Prob!=1){if((cur_Prob<=pages)&&(arr[i]>=pages))result++;}
                else if((cur_Prob<=pages)&&(num_Prob>=pages))result++;
            }
            else if ((cur_Prob<=pages)&&((cur_Prob+k)>pages)) {

                result++;
            }
            cur_Prob+=k;

            pages++;
            num_Prob-=k;
        }while (num_Prob>0);

    }
    return result;
}