Question

You are given two sequences of n integers: 21, 22, ...,an and b1,b2, ..., bn Print a sequence of 2n integers created by alternating elements from the given sequences: a1, 61, 42, 62, a3, 63, ..., an, bn. Input The first line contains a positive integer n (1 <n<1000) - the length of the sequences The second line contains n space-separated integers 01, 02, ..., an (-1000 <a; < 1000) – the elements of the first sequence. The third line contains n space-separated integers b1,b2, ...,bn (-1000 <b; < 1000) – the elements of the second sequence. Output Print 2n integers on separate lines – the elements of the sequence 21, 61, 62, 62 ..., An, bn. Examples input Copy 3 1 2 3 10 20 30 output Copy 1 10 2 20 3 30 input Copy 5 1 2 3 4 5 |-1 -2 -3 -4 -5 output Copy 1 -1 2 -2 3 3 4 -4 5 5

Plz i want answer these question using list in python programme.

Answer 1

> Print a sequence of 2n intergers created by alternatin elements from the given sequences:

CODE:

length = int(input()) #array length input
#Since values are given in one line, we have to split and store it in list
aList = [x for x in input().split()] #aList to store a1,a2,a3,...
bList = [x for x in input().split()] #bList to store b1,b2,b3,...

#Looping upto given length
for i in range(length):
   print(aList[i]) #Accessing the aList ith index and displaying
   print(bList[i]) #Accessing the bList ith index and displaying

CODE SCREENSHOT:

OUTPUT SCREENSHOT:

> Print elements of the sequence with even indices: a2,a4

CODE:

length = int(input()) #array length input
aList = [x for x in input().split()]#aList to store a1,a2,a3,...

for i in range(length): #Looping through aList
   #Since it is zero based indexing, so we have to identify an odd index
   if(i%2==1): #If i not divisible by 2, means odd index i.e even element
       print(aList[i]) #Accessing the aList ith index and displaying

CODE SCREENSHOT:

OUTPUT SCREENSHOT:

> print elements of the sequence that are even

CODE:

length = int(input()) #array length input
aList = [x for x in input().split()]#aList to store a1,a2,a3,...

for i in range(length): #Looping through aList
   if(int(aList[i])%2==0): #If aList[i] is divisible by 2, means it is even
       print(aList[i]) #displaying the val

CODE SCREENSHOT:

OUTPUT SCREENSHOT:

> Increase each element of the sequence by b and print the resulting sequence

CODE:

length = int(input()) #array length input
aList = [x for x in input().split()]#aList to store a1,a2,a3,...
b = int(input())

newList = [] #To store our new values
for i in range(length): #Looping through list
   newList.append(int(aList[i]) + b) #Appending our (aList[i] + b) to newList

for i in newList:#Loop through newList
   print(i) #Displaying the each element of newList

CODE SCREENSHOT:

OUTPUT SCREENSHOT:

Hope this will help you. Let me know, still if you have any queries..

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