Java

int pagenumber=0;
int count=0;
int x=k;
int noOfProblems;
for(int i=0;i<arr.size();i++){
    pagenumber +=1;
    noOfProblems=arr.get(i);
    for(int j=1;j<=noOfProblems;j++){

        if(j==pagenumber && j<=k){
            System.out.println(j);
            count++;
        }
        if(j>k){
            k = k+x;
            pagenumber++;
            if(j==pagenumber){
                count++;
            }
        }
    }
    k=x;  
}
return count;