#!/usr/bin/python
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#


import sys, getopt, os

os.getcwd()
outputfile = 'target/factorial-result.txt'
number = 5


def factorial(num):
    if num <= 0:
        return 1
    else:
        factorial = 1
        for i in range(1,num + 1):
            factorial = factorial*i
        return factorial

def writeFile(factorial):
    fileHandle  = open(outputfile,'w')
    fileHandle.write(factorial+'\n')
    fileHandle.flush()
    fileHandle.close()


if __name__ == "__main__":
   writeFile(str(factorial(number)))