39.1.1. Overview of List methods
(a)append()
(b)extend()
(c)insert(index, item)
(d)remove(element)
(e)pop()
39.1.2. Overview of List methods
#write your code here
a = input("data1: ").split(',')
b = input("element: ")
a.append(b)
print("after append:",a)
c = input("data2: ").split(",")
a.append(c)
print("after append:",a)
a.extend(c)
print("after extending:", a)
39.1.3. Write a Program to create a List using append() method
#write your code here
a = int(input("size: "))
l = []
for i in range(a):
l.append(input("element: "))
print("list:",l)
39.1.4. Write a program to reverse a given List
#write your code here
i = input("data: ").split(",")
print("reverse:",i[::-1])
39.1.5. Write a program to print the count of a of particular element in a List without using count() method.
#write you code here
a = input("data: ").split(',')
b = input("element: ")
c = a.count(b)
print(f"{b} occurs {c} times")
39.1.6. Write a program to find the sum of elements of a List without using sum() method
data = input("data: ")
list1 = data.split(",")
#complete the loop to convert the elements to integer type
l=[]
for i in list1:
l.append(int(i))
sum1 = 0
#complete the loop to find the sum
for i in range(len(list1)):
sum1 = sum1 + l[i]
print("sum:",sum1)
39.1.7. Write a program to find a given element, if the element to be found and its next element are the same then return True as output, otherwise return False.
a = list(map(int,input("data: ").split(",")))
print("list:",a)
n = int(input("num: "))
for i in range(len(a)):
if a[i]==n:
if a[i+1]==n:
print(True)
break
else:
print(False)
39.1.8. Write a Program to find Sequence of elements in a List
#write your code here
a = sorted(input("data: ").split(","))
b = sorted(input("seq of elements: ").split(","))
if set(b).issubset(set(a)):
print("exist")
else:
print("does not exist")
39.1.9. Write a Program to Print new list with Odd Indexed Elements in given List
#write your code here
x = input("data: ").split(",")
a = ""
for i in range(1,len(x),2):
a = a+x[i]+", "
print(f"odd index elements: [{a[:-2]}]")
39.1.10. Write a Program to Add all alphabets both small and upper case letters into a List
#write your code here
A = input("Please enter A in upper case: ")
a = input("Please enter A in lower case: ")
l = []
for i in range(26):
l.append(chr(ord(A)+i))
l.append(chr(ord(a)+i))
print(l)
39.1.11. Write a program to check whether the given list is in sorted order or not
#Write your code here
a = list(map(int,input("data: ").split(",")))
if a == sorted(a):
print(True)
else:
print(False)
39.1.12. Write a Program to Print Number of Characters in a given String using List
from collections import Counter
#write your code here
a = input("Please enter a sentence: ").lower()
l = []
for i in a:
if i.isalpha()==True:
l.append(i)
b = Counter(l)
for i in sorted(set(l)):
print(i,"\t",b[i])
