hoppity hop

hop.cpp

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

using namespace std;

int main(int argc, char** argv) {
	if (argc != 2) {
		cout << "Wrong number of arguments: " << argc << endl;
		return 1;
	}
	int l=atoi(argv[1]);	
	if (l == 0) {
		cout << "Unknown integer: " << argv[1] << endl;	
		return 1;
	}
	for(int i=1; i<=l; i++) {
		if (i%5==0 && i%3==0) cout << "Hop" << endl;
		else if (i%5==0) cout << "Hophop" << endl;
		else if (i%3==0) cout << "Hoppity" << endl;
	}
}