首页 > ACM题库 > HDU-杭电 > hdu 2261 To go or not to go待解决[解题报告]C++
2014
01-04

hdu 2261 To go or not to go待解决[解题报告]C++

To go or not to go

问题描述 :

LL is very lazy. Recently, he is assigned to a dormitory in the 5th floor and sometimes it’s hard for him to decide whether to step out for some snack at night. So he choose two positive integers x, y and decide to go or not to go by the low <y mod l> bit of x (l is the length of x in binary representation). If it is "1", he choose to go and if it is "0", he stay in the dormitory.

输入:

Each line contain two positive integers a and b (both not larger than 10^7 and a<=b). x is randomly chosen from [a,b]. No limit on y.

输出:

Each line contain two positive integers a and b (both not larger than 10^7 and a<=b). x is randomly chosen from [a,b]. No limit on y.

样例输入:

1 1
3 5

样例输出:

1.000000
0.666667