I do like C
#include <stdio.h>
void main (int argc, char * argv[])
{
int i,j;
int requested_value;
if (argc != 2)
{
printf( "\nUsage: %s value ", argv[0] );
return;
}
requested_value = atoi(argv[1]);
if (requested_value > 1)
{
for (i=1;i<=requested_value;i++)
{
for (j=i+1;j <= requested_value;j++)
{
printf("%d..%d, ",i,j);
}
}
printf("\n");
}
else
{
printf("no range\n");
}
}
(Why are leading spaces removed from posts?)