Task

The objective is to write a function that finds the sum of all positive multiples of 3 or 5 below n.

Show output for n = 1000.

This is is the same as Project Euler problem 1.

Extra credit: do this efficiently for n = 1e20 or higher.




clear all
set obs 999
gen a=_n
tabstat a if mod(a,3)==0 | mod(a,5)==0, statistic(sum)