I walk alone, into distance, through the fading light, biding my time for the sunset's final light.— SHUN, CHAKA
Simons has given you two integers $n$ and $m$.
Count the number of ordered tuples $(i, j, k)$, such that:
$0\le i, j, k\le m$, and- There exist two integers
$x$and$y$, such that$(i \oplus j) \cdot x + (j \oplus k) \cdot y = n$, where$\oplus$denotes the bitwise XOR operation.
Input
Each test contains multiple test cases. The first line contains the number of test cases $t$ ($1 \le t \le 10^4$). The description of the test cases follows.
The only line contains two integers $n$ and $m$ ($1\le n\le 10^9$, $1\le m\le 3\cdot 10^5$) — the given integers.
It is guaranteed that the sum of $m$ over all test cases does not exceed $3\cdot10^5$.
Output
For each test case, output a single integer — the number of ordered tuples $(i,j,k)$ that satisfy the condition.
Note
In the first test case, there are $18$ tuples that satisfy the conditions. For example:
$(2,1,2)$is a valid tuple because the equation$(2\oplus 1)\cdot x+(1\oplus 2)\cdot y=3$has an integer solution$x=3$,$y=-2$.$(1,1,0)$is also a valid tuple because the equation$(1\oplus 1)\cdot x+(1\oplus 0)\cdot y=3$has an integer solution$x=100$,$y=3$.$(2,0,2)$is not a valid tuple because the equation$(2\oplus 0)\cdot x+(0\oplus 2)\cdot y=3$has no integer solution.$(1,1,1)$is not a valid tuple because the equation$(1\oplus 1)\cdot x+(1\oplus 1)\cdot y=3$has no integer solution.$(3,2,1)$is not a valid tuple because$3 \gt 2$.
样例
5
3 2
4 6
1 1
7 20
720 2025
18
254
6
5558
7864357450
题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。