Jimexist

import java.util.*;

public class MultisetPermutations {
    private MultisetPermutations() {
    }

    public static void main(String[] args) {
        for (List<Integer> li : permutate(Arrays.asList(1, 1, 2, 2))) {
            System.out.println(li);
        }

Jimexist

#!/usr/bin/env python
import sys

def toGrey(num):
    return (num >> 1) ^ num

def generate(n):
    for i in xrange(2**n):
        yield toGrey(i)

Jimexist

public class BinarySearch {

    private BinarySearch() {
    }

    public static void main(String[] args) {
        Integer[] data = {1,2,3,4,5,6,7,8,9};
        for (int i=0; i<=10; ++i) {
            System.out.println(String.format("%d: %d", i, binarySearch(data, i)));
        }

Jimexist

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

#define MAX(A, B) ((A)>(B)?(A):(B))

static void print_paren(int n);
static void do_print(int n, int* idx, int k);
static void print_result(int n, int* idx);

Jimexist

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

static void swap(int* data, int c) {
	for (int i=0; c > 0; i+=2, --c) {
		int tmp = data[i];
		data[i] = data[i+1];
		data[i+1] = tmp;
	}

Jimexist

import java.util.*;

public class LowerBound {

	private LowerBound() {}

	final static class Node {
		Node left, right;
		final int val;
		public Node(int val) {

Jimexist

public final class Zigzag {

  private Zigzag() {}

  /**
   * given an array of integer, returns the maximun length of zig-zag
   * subsequence
   */
  public static int zigzagSequence(int[] arr) {
    if (arr.length < 2) {

Jimexist

#include<stdio.h>
#include<stdlib.h>
#include<assert.h>
#include<stdbool.h>

#define DUP (-1)
#define INVALID (-2)

static int comp(int a, int b, int c, int d) {
  if (a == c) {

Jimexist

import java.util.*;

/**
 * SRM 181 Div 1 - 3rd
 */
public class KiloManX {

	public static int leastShots(String[] damageChart, int[] bossHealth) {
		final int size = bossHealth.length;
		final int rows = 1 << size;

Jimexist

import java.util.*;

public final class Escape {

	private static final int size = 501;
	private static final int NotSeen = -1;

	private enum Type {
		Normal, Harmful, Deadly
	}