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#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static int cmpstringp(const void *p1, const void *p2)
{
	/* The actual arguments to this function are "pointers to
	   pointers to char", but strcmp(3) arguments are "pointers
	   to char", hence the following cast plus dereference */
	return strcmp(* (char * const *) p1, * (char * const *) p2);
}

int main(int argc, char *argv[])
{
	int j;

	if (argc < 2) {
		fprintf(stderr, "Usage: %s <string>...\n", argv[0]);
		exit(EXIT_FAILURE);
	}

	qsort(&argv[1], argc - 1, sizeof(char *), cmpstringp);

	for (j = 1; j < argc; j++)
		puts(argv[j]);
	exit(EXIT_SUCCESS);
}