Question : https://www.hackerrank.com/challenges/variable-sized-arrays/problem
Solution : #include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
int main() {
/* Enter your code here. Read input from STDIN. Print output to STDOUT */
int size , q;
cin>>size >>q;
int ** A = new int*[size];
for(int i =0;i<size;i++){
int s;
cin>>s;
A[i] = new int[s];
for(int j = 0;j<s;j++){
cin>>A[i][j];
}
}
for(int i =0;i<q;i++){
int r , c;
cin>>r>>c;
cout<<A[r][c]<<endl;
}
/* Free your memory using this code
for(int i = 0; i < size; ++i)
{
delete[] A[i];
}
delete[] A;
*/
return 0;
}