Score : $100$ points

问题描述

你将得到 $N$ 个整数 $A_1, A_2, \ldots, A_N$。

如果它们的值全都相等，输出 Yes；否则，输出 No。

以上为通义千问 qwen-max 翻译，仅供参考。

Problem Statement

You are given $N$ integers $A _ 1,A _ 2,\ldots,A _ N$.

If their values are all equal, print Yes; otherwise, print No.

Constraints

• $2\leq N\leq100$
• $1\leq A _ i\leq100\ (1\leq i\leq N)$
• All input values are integers.

Input

The input is given from Standard Input in the following format:

$N$

$A _ 1$ $A _ 2$ $\ldots$ $A _ N$

Output

Print a single line containing Yes if the values of the given $A _ 1,A _ 2,\ldots,A _ N$ are all equal, and No otherwise.

Sample Input 1

3
3 2 4

Sample Output 1

No

We have $A _ 1\neq A _ 2$, so you should print No.

Sample Input 2

4
3 3 3 3

Sample Output 2

Yes

We have $A _ 1=A _ 2=A _ 3=A _ 4$, so you should print Yes.

Sample Input 3

10
73 8 55 26 97 48 37 47 35 55

Sample Output 3

No

update @ 2024/3/10 01:45:36