Python Answers

Given a string, write a program to return the sum and average of the numbers that appear in the string, ignoring all other characters.

Input

The input will be a single line containing a string.

Output

The output should contain the sum and average of the numbers that appear in the string.

 Note: Round the average value to two decimal places.

Explanation

For example, if the given string is "I am 25 years and 10 months old", 

the numbers are 25, 10. Your code should print the sum of the numbers(35)

and the average of the numbers(17.5) in the new line.

Sample Input 1

I am 25 years and 10 months old

output:

35

17.5

sample Input 2

Lear4 python7

output:

11

5.5

sample Input 3

Anjali25 is python4 Expert

output:

29

14.5 

Acronyms

You are given some abbreviations as input. Write a program to print the acronyms separated by a dot(

.) of those abbreviations.

Input

The first line of input contains space-separated strings.

Explanation

Consider the given abbreviation, 

Indian Administrative Service. We need to consider the first character in each of the words to get the acronym. We get the letter I from the first string Indian, we get the letter A from the second word Administrative, and we get the letter S from the third word Service. So, the final output should be I.A.S.

Sample Input 1
Indian Administrative Service
Sample Output 1
I.A.S
Sample Input 2
Very Important Person
Sample Output 2
V.I.P

Replacing Characters of Sentence

You are given a string 

S. Write a program to replace each letter of the string with the next letter that comes in the English alphabet.

Note: Ensure that while replacing the letters, uppercase should be replaced with uppercase letters, and lowercase should be replaced with lowercase letters.

Input

The first line of input is a string.

Explanation

In the given example, 

Hello World.

If we replace each letter with the letter that comes next in the English alphabet, 

H becomes I, e becomes f and so on ... So, the output should be Ifmmp Xpsme.

Sample Input 1
Hello World
Sample Output 1
Ifmmp Xpsme
Sample Input 2
Something is better than Nothing
Sample Output 2
Tpnfuijoh jt cfuufs uibo Opuijoh

Roots of a quadratic equation

You are given cofficients 

a, b and c of a quadratic equation ax2 + bx + c = 0. Find the roots r1, r2 of the equation.

Note: 

r1 and r2 should be rounded upto 2 decimal places.

Input

The first line of input is an integer 

a. The second line of input is an integer b. The third line of input is an integer c.

Explanation

In the given example, a = 1, b = -5, c = 6. Then the equation is x2 - 5x + 6 = 0

r1 = (-b + (b^2 - 4*a*c)^0.5)/2*a 
r1 = (5 + (25 - 24))/2
r1 = 3
 

and 

r2 = (-b - (b^2 - 4*a*c)^0.5)/2*a
r2 = (5 - (25 - 24))/2
r2 = 2
 

So, the output should be 

3
2
Sample Input 1
1
-5
6
Sample Output 1
3.0
2.0
Sample Input 2
-1
1
6
Sample Output 2
-2.0
3.0

Diamond

Given an integer value 

N, write a program to print a number diamond of 2*N -1 rows as shown below.

Input

The first line of input is an integer 

N.

Explanation

In the given example, the number of rows in the diamond is 

5.

So, the output should be

. . . . 0 . . . . 
. . . 0 0 0 . . . 
. . 0 0 0 0 0 . . 
. 0 0 0 0 0 0 0 . 
0 0 0 0 0 0 0 0 0
. 0 0 0 0 0 0 0 . 
. . 0 0 0 0 0 . . 
. . . 0 0 0 . . . 
. . . . 0 . . . .
Sample Input 1
5
Sample Output 1
. . . . 0 . . . . 
. . . 0 0 0 . . . 
. . 0 0 0 0 0 . . 
. 0 0 0 0 0 0 0 . 
0 0 0 0 0 0 0 0 0 
. 0 0 0 0 0 0 0 . 
. . 0 0 0 0 0 . . 
. . . 0 0 0 . . . 
. . . . 0 . . . .
Sample Input 2
4
Sample Output 2
. . . 0 . . . 
. . 0 0 0 . . 
. 0 0 0 0 0 . 
0 0 0 0 0 0 0 
. 0 0 0 0 0 . 
. . 0 0 0 . . 
. . . 0 . . .

Sum of N terms in Harmonic series

Given integer 

N as input, write a program to display the sum of the first N terms in harmonic series.

The series is: 1 + 1/2 + 1/3 + 1/4 + 1/5 ... + 1/N (N terms).

Input

The first line of input is an integer 

N.

Output

Print the sum rounded upto 2 decimal places.

Explanation

For 

N = 5

The sum of first 5 terms in harmonic series is 1 + 1/2 + 1/3 + 1/4 + 1/5

So, the output should be 

2.28.

Sample Input 1
5
Sample Output 1
2.28
Sample Input 2
3
Sample Output 2
1.83

def character_element(n):
  import string
  if n in string.ascii_letters:
    print('Letter')
  elif n in string.digits:
    print('Digit')
  else:
    print('Special Character')

The Above code have two test cases, but they were not getting any expected output even one test case also. Please give me expected output. Thank you !

Question url link :-

https://drive.google.com/file/d/1iGIZxhoPoL67KNkroEgQpaIo3Vh8w7dE/view?usp=sharing

The test cases are below

Sample Input 1

9

Sample Output 1

Digit

Sample Input 2

A

Sample Output 2

Uppercase Letter

LARGEST PALINDROME

you are given an integer N . find the largest palindrome which is less than N .

INPUT

the input contains a single integer

OUTPUT

the output should be a single integer which is the largest palindrome that is less than the given input.

EXPLANATION

given N = 45

44 is the largest number which is a palindrome that is less than 45

SAMPLE INPUT 1

45

SAMPLE OUTPUT 1

44

SAMPLE INPUT 2

79

SAMPLE OUTPUT 2

77

You are given a positive integer N. Your task is to find the number of positive integers K <= N such that K is not divisible by any of the following numbers 2, 3, 4, 5, 6, 7, 8, 9, 10.

With Explanation too!