Faster way to create tab deliminated text files?

Question

Many of my programs output huge volumes of data for me to review on Excel. The best way to view all these files is to use a tab deliminated text format. Currently i use this chu

Answer 1

Use C IO, it's a lot faster than C++ IO. I've heard of people in programming contests timing out purely because they used C++ IO and not C IO.

#include 

FILE* fout = fopen(fileName.c_str(), "w");

for (int j = 0; j < dim; j++) 
{ 
    for (int i = 0; i < dim; i++) 
        fprintf(fout, "%d\t", arrayPointer[j * dim + i]); 
    fprintf(fout, "\n");
} 
fclose(fout);

Just change %d to be the correct type.