是得从狗头起步# PhotoGear - 摄影器材
a*3
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https://www.hackerrank.com/challenges/how-many-matrices
How many ways can use integers from 1 to n to make a matrix, such that in
each row from left to right the numbers are increasing and in each column
from top to bottom the numbers are also increasing.
if input n=4, output 4.
还没能实现。现在思路是先判断n是不是prime,要是prime返回2.否则构建的matrix应该
跟他的因子有关系。
求指导
How many ways can use integers from 1 to n to make a matrix, such that in
each row from left to right the numbers are increasing and in each column
from top to bottom the numbers are also increasing.
if input n=4, output 4.
还没能实现。现在思路是先判断n是不是prime,要是prime返回2.否则构建的matrix应该
跟他的因子有关系。
求指导
