Yurttas/PL/OOL/Cplusplus/F/02/04/022/01/00/sum.cpp

 1/*
 2   Copyright(C) 1998
 3   All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
 4
 5   Permission to use, copy, modify, and distribute this
 6   software and its documentation for EDUCATIONAL purposes
 7   and without fee is hereby granted provided that this
 8   copyright notice appears in all copies.
 9
10   date   : January 1, 1998.
11   author : Salih Yurttas.
12
13   sum.cpp
14*/
15
16
17int sum(int n) {
18  if(n>0) return n + sum(n-1);
19  return n;
20}