问题1794--Straight as an Arrow

1794: Straight as an Arrow

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时间限制 : 1.000 sec  内存限制 : 64 MB

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题目描述

输入

Each test case consists of 6 integers on a line denoting coordinate pairs for three points. A line containing 0 0 0 0 0 0 follows the last test case.

输出

For each test case, print a line of output stating "colinear" or "not colinear" depending on whether or not the points all lie on the same line.

样例输入 Copy 

1 1 2 2 3 3
1 1 2 2 3 4
0 0 0 0 0 0

样例输出 Copy 

colinear
not colinear

来源/分类

University of Waterloo Local Contest 2000.9.30 practice 
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