Nptel The Joy Of Computing Using Python | NPTEL Week 5 Programming Assignment | NPTEL Assignment Solutions

NPTEL The Joy Of Computing Using Python Week 5 Programming Assignment | NPTEL Swayam Assignment Answers

 

Nptel Week 5 Programming Assignment Answers:

Q.1: You are given a string S in Python. So, write a function count_letters which accepts the string S and returns a dictionary containing letters (including special character) in string S as keys and their count in string S as values. Given input and output below:

(input and output is handled by us, you just need to write the function and return the dictionary)

Input

The Joy of computing

Output

{'T': 1, 'h': 1, 'e': 1, ' ': 3, 'j': 1, 'o': 3, 'y': 1, 'f': 1, 'c': 1, 'm': 1, 'p': 1, 'u': 1, 't': 1, 'i': 1, 'n': 1, 'g': 1}

Code:

def count_letters(S): d={} for i in S: d[i]=S.count(i) return d

Q.2: You are given a list L in Python. So, write a function uniqueE which will return a list of unique elements is the list L in sorted order. (Unique element means it should appear in list L only once.)

Given input and output below:

Input is handled by us.

Input

[1,2,3,3,4,4,2,5,6,7]

Output

[1,5,6,7]

Explanation

Elements 1,5,6,7 appears in the input list only once.

Code:

def uniqueE(L): a=[] for i in L: if L.count(i)==1: a.append(i) return (sorted(a))

Q.3: You are given a list L in Python. So, write a program to print first prime number encountered in the list L.(Treat numbers below and equal to 1 as non prime). Given input and output below:

Input is handled by us.

Input

[1,2,3,4,5,6,7,8,9]

output

2

Explanation

Since 2 is the first prime number is list L, therefor it is printed.

Code:

def prime(num): c=0 i=2 while(i<num): if num%i==0: c+=1 break i+=1 return(c==0 and num>1) for i in L: if prime(i)==True: print(i,end="") break

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