Leetcode

# Start coding here... 
def capitalizeTitle(n):
        """
        :type title: str
        :rtype: str
        """
        digits = (int(d) for d in reversed(str(n)))
        total = 0
        for position, digit in enumerate(digits):
            if position % 2 == 1:
                digit *= 2
                if digit > 9: 
                    digit -= 9
            total += digit
        return total 

capitalizeTitle('79927398713')

def checkLuhn(cardNo):
     
    nDigits = len(cardNo)
    nSum = 0
    isSecond = False
     
    for i in range(nDigits - 1, -1, -1):
        d = ord(cardNo[i]) - ord('0')
     
        if (isSecond == True):
            d = d * 2
  
        # We add two digits to handle
        # cases that make two digits after
        # doubling
        nSum += d // 10
        nSum += d % 10
  
        isSecond = not isSecond
     
    return nSum
 

checkLuhn('79927398713')

print("Enter the Total Number of Terms: ")
n = 20

if n > 0 and n & (n-1) == 0:
    print('True')
else:
    print('False')

import sys
for line in sys.stdin:
    print(line, end = " ")

nums = sys.stdin.readline().split()

if nums[0] < nums[1]:
    print("<")
elif nums[0] > nums[1]:
    print(">")
else:
    print("=")

import sys
import pandas as pd
df = pd.read_csv('cereal.csv')
m1=df['price'].max()
m2=df['price'].min()
m3=df['price'].mean()
s=df['price'].std()
print(round(m1, 2),"\n",round(m2, 2),"\n",round(m3, 3),"\n",round(s, 4))