Large Factorial

Author: anantkaushik

Python/Interviewbit/Arrays/large-factorial.py

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+"""
+Problem Link: https://www.interviewbit.com/problems/large-factorial/
+
+Problem Description
+Given a number A. Find the fatorial of the number.
+
+Problem Constraints
+1 <= A <= 100
+
+Input Format
+First and only argument is the integer A.
+
+Output Format
+Return a string, the factorial of A.
+
+
+Example Input
+Input 1:
+A = 2
+
+Input 2:
+A = 3
+
+Example Output
+Output 1:
+2
+
+Output 2:
+6
+
+Example Explanation
+Explanation 1:
+2! = 2 .
+
+Explanation 2:
+3! = 6 .
+"""
+class Solution:
+    # @param A : integer
+    # @return a strings
+    def solve(self, A):
+        res = 1
+        for num in range(2, A+1):
+            res *= num
+        return str(res)