Question

how we can use dynamically allocated two-D array in tokenization

Answer 1

1)Initialize at the beginning:
double **queryPoint = 0;
int qp_count = 0;
2)For every line call:
// call realloc to make the space for points larger by one element
queryPoint = realloc(queryPoint, sizeof(double*)*(qp_count+1));
// allocate space for the new point
queryPoint[qp_count] = malloc(sizeof(double)*2);
// increase the point count
qp_count++;