• 2543 数据的顺序

    Time Limit : 2000/1000 MS(Java/Others) | Memory Limit : 65536/32768 KB(Java/Others)

    Submits : 3169 | Solved : 1132

    Description

    给定一组整数,如果是从小到大的顺序(相等也可以),就输出yes。否则输出no


    Input

    输入数据的个数n

    输入n个整数


    Output

    输出yesno


    Sample Input

    6
    23 45 67 71 75 13
    

    Sample Output

    no

    HINT

    数组空间可开到10000

    Source

    NBU OJ

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