#include <stdio.h>
#include <stdlib.h>

// Append 100..120 to a binary file
int main()
{
	FILE *binfile;
	int i;
	
	binfile = fopen("binary.bin", "ab"); // use "ab" here for write as a binary
	
	for(i=100; i<= 120; i++)
		fwrite(&i, sizeof(int), 1, binfile); // fwrite is used for binary

	fclose(binfile); // close the file
		
	system("pause");
}