What is the output of the following Python program? mylist = [ [2,4,1], [1,2,3], [2,3,5] ]total = 0for sublist in mylist: total += sum(sublist)print(total) Question 2Select one:a.14b.23c.0d.13
Question
What is the output of the following Python program? mylist = [ [2,4,1], [1,2,3], [2,3,5] ]total = 0for sublist in mylist: total += sum(sublist)print(total) Question 2Select one:a.14b.23c.0d.13
Solution
To find the output of the given Python program, let's go through it step by step:
-
Initialize the variable
mylistas a list of lists:mylist = [ [2,4,1], [1,2,3], [2,3,5] ]- This creates a list
mylistwith three sublists:[2,4,1],[1,2,3], and[2,3,5].
- This creates a list
-
Initialize the variable
totalas 0:total = 0 -
Iterate over each sublist in
mylistusing a for loop:for sublist in mylist:- This loop will iterate three times, once for each sublist in
mylist.
- This loop will iterate three times, once for each sublist in
-
Calculate the sum of each sublist and add it to the
totalvariable:total += sum(sublist)- The
sum(sublist)function calculates the sum of all elements in the current sublist, and the result is added to thetotalvariable.
- The
-
After the loop finishes, print the value of
total:print(total)- This will output the final value of the
totalvariable.
- This will output the final value of the
Now, let's calculate the output:
- For the first sublist
[2,4,1], the sum is 2 + 4 + 1 = 7. - For the second sublist
[1,2,3], the sum is 1 + 2 + 3 = 6. - For the third sublist
[2,3,5], the sum is 2 + 3 + 5 = 10.
Therefore, the final value of total will be 7 + 6 + 10 = 23.
So, the output of the program is 23.
Therefore, the correct answer is b. 23.
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