Run error help me out

#1
#2

N has a worst case value of 100000000 . Your code is traversing N thats why it is showing error. Factorial of N is creating lots of stacks due to recursive calls . Try to change your logic .

#3

what can i do now i have 2 more option for calculating factorial simple loop till n or matrix exponentiation

#4
#5

still one test case is not passed it says wrong ans