#include <stdarg.h>#include <stdio.h>intsum_v(int n,va_list ap){int i, s;for(i =0, s =0; i < n; i++) s +=va_arg(ap,int);return s;}intsum_l(int n, ...){va_list ap;int s;va_start(ap, n);
s =sum_v(n, ap);va_end(ap);return s;}intmain(){printf("Sum is%d\n",sum_l(10,1,2,3,4,5,6,7,8,9,10));return0;}