计蒜客011-移除数组中的重复元素

给定一个升序排列的数组,去掉重复的数,并返回新的数组的长度。

例如:

   数组A = {1, 1, 2},你的函数应该返回长度2,新数组为{1, 2}

要求:

   不能新开数组分配额外的空间。即常数空间限制。

提示:

   输入一个整数n,以及其对应的数组A[n],输出新数组长度

样例输入

5
0 0 1 1 2

样例输出

3
import java.util.Scanner;

public class Main {

	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		
		int n = in.nextInt();
		int[] A = new int[10000];
		int i,num=n;
		for(i=0;i<n;i++)
			A[i] = in.nextInt();
		
		for(i=0;i<n-1;i++)
			if(A[i+1]==A[i])
				num--;
		System.out.println(num);
		
		}
	}


C#简单变色龙游戏 /// /// 创建一副52张的新牌 /// /// public static System.Collections.ArrayList Creat() { System.Collections.ArrayList list = new System.Collections.ArrayList(); for (int i = 3; i <= 6; i++) { for (int j = 1; j <= 13; j++) { Poker p = new Poker(); switch (j) { case 1: p = new Poker((PokerStyle)i, "A", j, 11); break; case 2: p = new Poker((PokerStyle)i, j.ToString(), j, 10); break; case 11: p = new Poker((PokerStyle)i, "J", j, 11); break; case 12: p = new Poker((PokerStyle)i, "Q", j, 2); break; case 13: p = new Poker((PokerStyle)i, "K", j, 3); break; default: p = new Poker((PokerStyle)i, j.ToString(), j, j); break; } list.Add(p); } } return list; } /// /// 洗牌 /// /// /// public static System.Collections.ArrayList shuffle(System.Collections.ArrayList list)//洗牌 { System.Random r = new Random(); for (int i = 0; i <= 7; i++) { int rightOrRight = r.Next(1, 3); Poker[] leftPoker = new Poker[list.Count / 2]; Poker[] rightPoker = new Poker[list.Count % 2 == 0 ? list.Count / 2 : list.Count / 2 + 1]; list.CopyTo(0, leftPoker, 0, list.Count / 2); list.CopyTo(list.Count / 2, rightPoker, 0, list.Count % 2 == 0 ? list.Count / 2 : list.Count / 2 + 1); if (rightOrRight == 1)//左边插右边 { list.Clear(); for (int j = 0; j <= leftPoker.Length - 1; j++) { list.Add(rightPoker[j]); list.Add(leftPoker[j]); } if (leftPoker.Length != rightPoker.Length) { list.Add(rightPoker[rightPoker.Length - 1]); } } else { list.Clear(); for (int j = 0; j <= leftPoker.Length - 1; j++) { list.Add(leftPoker[j]); list.Add(rightPoker[j]); } if (leftPoker.Length != rightPoker.Length) { list.Add(rightPoker[rightPoker.Length - 1]); } } } return list; }
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