cls

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

const char *
intern(const char *s)
{
	union tree {
		const char *str;

cls

import java.util.Iterator;

public class CovariantIterator<T extends U, U> implements Iterator<U>
{
	private Iterator<T> iter;

	public CovariantIterator(Iterator<T> it)
	{
		this.iter = it;
	}

cls

#include <stdio.h>

enum { I, V, X, L, C, D, M, StackSize };

const int values[] = { 1, 5, 10, 50, 100, 500, 1000 };

int
unroman(const char *s)
{
	int stack[StackSize];