Only One test case passed

#1

I have calculated (n-1) c (r-1) but only one test case passed

#2

Hey @Ferogle
Hey your variables ill overflow, its clearly mentioned that “You can assume that this number exceeds the limit of a signed 64-bit integer.”
Example 249 245

Use this instead :https://ide.codingblocks.com/s/323955
:slight_smile:

#3

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