Problem C: Jolly Jumpers

Problem C: Jolly Jumpers

时间： 1ms        内存：128M

描述：

Problem C: Jolly Jumpers

A sequence of n > 0 integers is called a jolly jumper if the absolute values of the difference between successive elements take on all the values 1 through n-1. For instance,

1 4 2 3

is a jolly jumper, because the absolutes differences are 3, 2, and 1 respectively. The definition implies that any sequence of a single integer is a jolly jumper. You are to write a program to determine whether or not each of a number of sequences is a jolly jumper.

Each line of input contains an integer n < 3000 followed by n integers representing the sequence. For each line of input, generate a line of output saying "Jolly" or "Not jolly".

输入：

输出：

示例输入：

4 1 4 2 3
5 1 4 2 -1 6

示例输出：

Jolly
Not jolly

提示：

参考答案：

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