Hackerrank Problems #1 solved in Python

Problems solved in Python
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The Utopian Tree goes through 2 cycles of growth every year. Each spring, it doubles in height. Each summer, its height increases by 1 meter.

Laura plants a Utopian Tree sapling with a height of 1 meter at the onset of spring. How tall will her tree be after  growth cycles?

For example, if the number of growth cycles is , the calculations are as follows:

Period  Height
0          1
1          2
2          3
3          6
4          7
5          14

CODE 1:

#!/bin/python3

import math

import os

import random

import re

import sys

# Complete the utopianTree function below.

def utopianTree(n):

if n >= 0:

if n == 0:

return 1

elif n == 1:

return 2

else:

height = 1

for i in range(1,n+1):

if i % 2 != 0:

height += height

else:

height += 1

return height    

if __name__ == '__main__':

fptr = open(os.environ['OUTPUT_PATH'], 'w')

t = int(input())

for t_itr in range(t):

n = int(input())

result = utopianTree(n)

fptr.write(str(result) + '\n')

fptr.close()



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By
PyKAR