Python Answers

Write the Python code of a program that reads a student’s mark for a single subject, and prints out the corresponding grade for that mark. The mark ranges and corresponding grades are shown in the table below. You need to make sure that the mark is valid. For example, a student cannot receive -5 or 110 marks. So, the valid marks range is 0 to 100.

A teacher has taken exam of his students. He has stored marks in a dictionary where keys are the student's name and values are student's marks. Now he wants to know the name of students obtained minimum and maximum marks from this dictionary. You need to write a python function F-m-M(X) which takes dictionary as input and returns the name of student pair having minimum and maximum marks in the class. If input dictionary is empty return "Invalid Input".

Ex: Input : { 'Amit': 21, 'Aniket':34, 'Rohit': 53 }, Output: ('Amit', 'Rohit' )

Input: { } , Output: Invalid Input

Ayush is learning python programming. He has given some task to do on dictionary, but he don't know anything about dictionary but he is good in concepts of list. Your task is to write a python function Co-Dic(Y) function which takes a dictionary as input and convert it into list of list as shown in the example.

Ex1: Input- {1:'Arnab Goswami' , 2: 'Michael Stone', 3: 'Rajesh Mishra, 4:'Chris Jordan'}

Output - [ [1,'Arnab Goswami'],[2,'Michael Stone'],[3,'Rajesh Mishra'], [4,'Chris Jordan'] ]

2 . Input- {3.2: 214, 00.000: 25, 3: 'Man', 0.00: 31}

Output- [ [3.2,214], [0,31], [3,'Man'] ]

List=[1,2,2,3,4,5]

Using break or continue condition find frequency of each element in List without using any other functions like append, count or dictionaries.

Swap Letters

Input: Python is a programming language

output: Python is e progremming lenguega

A palindrome is a string that reads the same forwards as backwards. Using only a fixed number of stacks and queues, the stack and queue ADT functions, and a fixed number of int and char variables, write an algorithm to determine if a string is a palindrome. Assume that the string is read from standard input one character at a time. The algorithm should output true or false as appropriate.

Given an array storing integers ordered by value, modify the binary search routine to return the position of the first integer with value K in the situation where K can appear multiple times in the array. Be sure that your algorithm is that is, do not resort to sequential search once an occurrence of K is found.

Prof. Abhiram has taken an exam of his students. He has stored the marks of students in a dictionary where keys are the student’s name and values in the dictionary are student marks. Now he wants to know the name of students obtained minimum and maximum marks from this dictionary. You need to write a python function Find_Min_Max(A)  which takes a dictionary as input parameter and return the name of student pair having minimum and maximum marks in the class as shown in the example.

Example-1

Example-2

Input:

{'Theodore': 19, 'Roxanne': 22, 'Mathew': 21, 'Betty': 20}

Output:

('Theodore', 'Roxanne')

Input:

{'Roudy': 9, 'Alexa': 2, 'Prett': 18, 'Holmes': 22}

Output:

('Alexa', 'Holmes')

Even Out

by CodeChum Admin

You know, I was lying when I said the last time that numbers associated with 3 are my favorite, because the one I actually like the most in the world are even numbers! But to make things harder for you, you have to pick the even numbers from a range of two given numbers. Ha!

Now, let's try this one more time! 

Instructions:

1. Input two integers in one line, separated by a space. The first integer shall represent the starting point, and the other, the ending point.
2. Print out all even numbers that are within the range of the starting and ending point (inclusive or including the ending point).

Input

A line containing two integers separated by a space.

5·10

Output

A line containing integers separated by a space.

6·8·10

You want to know your grade in Computer Science, so write a program that continuously takes grades between 0 and 100 to standard input until you input "stop", at which point it should print your average to standard output.