Python Coding Challenge - Question with Answer (ID 090826)

 

Explanation:

🔹 Line 1 — print()

print(...)

print() displays the final result on the screen.

🔹 Step 1 — "10101"

"10101"

This is a string, containing five characters:

1  0  1  0  1

It is not being treated as a binary number here.

🔹 Step 2 — map(int, "10101")

map(int, "10101")

map() applies int() to every character:

"1" → 1

"0" → 0

"1" → 1

"0" → 0

"1" → 1

So the values produced are:

1, 0, 1, 0, 1

🔹 Step 3 — sum()

sum(map(int, "10101"))

sum() adds those values:

1 + 0 + 1 + 0 + 1

Result:

3

🔹 Step 4 — print()

Now the complete expression becomes:

print(3)

So Python displays:

✅ Output

3

800 Days Python Coding Challenges with Explanation