Exercise 1: Number Grid

Print this grid using nested loops:

1 2 3 4
1 2 3 4
1 2 3 4

Starter Code

# Print a 3-row, 4-column number grid
# Each row should show: 1 2 3 4

for row in range(___):
    for col in range(___):
        print(___, end=" ")
    print()

Hints

Hint 1 — How many rows?

You need 3 rows, so the outer loop should run 3 times: range(3)

Hint 2 — What numbers to print?

Each row prints 1, 2, 3, 4. Use range(1, 5) for the inner loop to get those numbers.

Hint 3 — How to stay on the same line?

Use print(col, end=" ") to print on the same line, then print() after the inner loop to move to the next line.

Solution

Show Solution

for row in range(3):
    for col in range(1, 5):
        print(col, end=" ")
    print()

How it works:

Outer loop runs 3 times (3 rows)
Inner loop runs with values 1, 2, 3, 4
end=" " keeps everything on one line
print() moves to the next line after each row

Number Grid

Exercise 1: Number Grid

Starter Code

Hints

Solution

Try it yourself

Code: Number Grid