i want to add inverse factoral method to find nCr in O(1)

[kunjgit]

Feature description

the inverse factorial method can find any nCr in just O(1) with some O(n) precomputation so it is really important to find nCr when n is so large
this is really important to know because as competitive programmer it can help you to make your program faster as well as time efficient

[sauravkumar8178]

Hello sir, can you assign this issue to me

[supreetkaursareen]

can you assign it to me