Day5

Author: mahtab04

Day5/q18.py

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+# cook your dish here
+# problem link ->"https://www.codechef.com/problems/LUCKFOUR"
+t=int(input())
+foriinrange(t):
+a=input()
+print(a.count('4'))

Day5/q19.py

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+# Take two lists, say for example these two:
+
+# a = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
+# b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
+# and write a program that returns a list that contains only the elements that are common between the
+# lists (without duplicates). Make sure your program works on two lists of different sizes.
+
+a= [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 13, 13, 13, 13, 12]
+b= [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 13, 13, 13]
+c= []
+forninb:
+ifninb:
+ifnnotinc:
+c.append(n)
+print(c)

Day5/q20.py

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+# Ask the user for a string and print out whether this string is 
+# a palindrome or not. (A palindrome is a string that reads the 
+# same forwards and backwards.)
+mystring=input()
+foriinrange(len(mystring) //2):
+ifmystring[i] !=mystring[-1-i]:
+print('Not Palindrome')
+break
+else:
+print('Palindrome')
+
+
+string="Hello"
+i=0
+forchinrange(len(string)):
+if (string[i] !=string[-1-i]):
+print('Not Palindrome')
+break
+else:
+print("Pelindrom") 
+break
+
+
+defreverse(word):
+x=''
+foriinrange(len(word)):
+x+=word[len(word)-1-i]
+returnx
+
+word=input('give me a word:\n')
+x=reverse(word)
+ifx==word:
+print('This is a Palindrome')
+else:
+print('This is NOT a Palindrome')

Day5/q21.py

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+# Let’s say I give you a list saved in a variable: 
+# a = [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]. Write one line 
+# of Python that takes this list a and makes a new list that has only the even elements of this list in it.
+
+a= [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]
+
+c= [numfornuminaifnum%2==0]
+print(c)