18666053854Consider the set of all nonnegative integers: 0,1,2,…0,1,2,…. Given two integers aa and bb (1≤a,b≤1041≤a,b≤104). We paint all the numbers in increasing number first we paint 00, then we paint 11, then 22 and so on.
Each number is painted white or black. We paint a number ii according to the following rules:
if i=0i=0, it is colored white; if i≥ai≥a and i−ai−a is colored white, ii is also colored white; if i≥bi≥b and i−bi−b is colored white, ii is also colored white; if ii is still not colored white, it is colored black. In this way, each nonnegative integer gets one of two colors.
For example, if a=3a=3, b=5b=5, then the colors of the numbers (in the order from 00) are: white (00), black (11), black (22), white (33), black (44), white (55), white (66), black (77), white (88), white (99), ...
Note that:
It is possible that there are infinitely many nonnegative integers colored black. For example, if a=10a=10 and b=10b=10, then only 0,10,20,300,10,20,30 and any other nonnegative integers that end in 00 when written in base 10 are white. The other integers are colored black. It is also possible that there are only finitely many nonnegative integers colored black. For example, when a=1a=1 and b=10b=10, then there is no nonnegative integer colored black at all. Your task is to determine whether or not the number of nonnegative integers colored black is infinite.
If there are infinitely many nonnegative integers colored black, simply print a line containing "Infinite" (without the quotes). Otherwise, print "Finite" (without the quotes).
Input
The first line of input contains a single integer tt (1≤t≤1001≤t≤100) — the number of test cases in the input. Then tt lines follow, each line contains two space-separated integers aa and bb (1≤a,b≤1041≤a,b≤104).
Output
For each test case, print one line containing either "Infinite" or "Finite" (without the quotes). Output is case-insensitive (i.e. "infinite", "inFiNite" or "finiTE" are all valid answers). ———————————————— 版权声明:本文为CSDN博主「Mr_Kingk」的原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接及本声明。 原文链接:https://blog.csdn.net/mr_kingk/article/details/102884879
版权声明:本文内容由阿里云实名注册用户自发贡献,版权归原作者所有,阿里云开发者社区不拥有其著作权,亦不承担相应法律责任。具体规则请查看《阿里云开发者社区用户服务协议》和《阿里云开发者社区知识产权保护指引》。如果您发现本社区中有涉嫌抄袭的内容,填写侵权投诉表单进行举报,一经查实,本社区将立刻删除涉嫌侵权内容。