CF261C.Maxim and Matrix
普及/提高-
通过率:0%
AC君温馨提醒
该题目为【codeforces】题库的题目,您提交的代码将被提交至codeforces进行远程评测,并由ACGO抓取测评结果后进行展示。由于远程测评的测评机由其他平台提供,我们无法保证该服务的稳定性,若提交后无反应,请等待一段时间后再进行重试。
题目描述
Maxim loves to fill in a matrix in a special manner. Here is a pseudocode of filling in a matrix of size (m+1)×(m+1) :
Maxim asks you to count, how many numbers m (1<=m<=n) are there, such that the sum of values in the cells in the row number m+1 of the resulting matrix equals t .
Expression ( x xor y ) means applying the operation of bitwise excluding "OR" to numbers x and y . The given operation exists in all modern programming languages. For example, in languages C++ and Java it is represented by character "^", in Pascal — by "xor".
输入格式
A single line contains two integers n and t (1<=n,t<=1012,t<=n+1) .
Please, do not use the %lld specifier to read or write 64-bit integers in C++. It is preferred to use the cin, cout streams or the %I64d specifier.
输出格式
In a single line print a single integer — the answer to the problem.
输入输出样例
输入#1
1 1
输出#1
1
输入#2
3 2
输出#2
1
输入#3
3 3
输出#3
0
输入#4
1000000000000 1048576
输出#4
118606527258