test3/core.c

#include <stdio.h>

int f(int c, int d);

int
main(int argc, char **argv)
{
	int x, y;
	sscanf(argv[1], "%d", &x);
	sscanf(argv[2], "%d", &y);

	int res = f(x, y);

	printf("un res = %d\n", res);

	return 0;
}