Exercise 3: Coordinate Pairs

Print all coordinate pairs for a 3×3 grid:

(0,0) (0,1) (0,2)
(1,0) (1,1) (1,2)
(2,0) (2,1) (2,2)

Starter Code

# Print all (row, col) pairs for a 3x3 grid

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

Hint 1 — What ranges?

Both the outer and inner loops should go from 0 to 2: range(3)

Hint 2 — How to format?

Use an f-string: f"({row},{col})" and print with end=" " to stay on the same line.

Make it work for any size grid! Ask the user for the size:

size = int(input("Grid size: "))
# Print all coordinate pairs for that size

Show Solution

for row in range(3):
    for col in range(3):
        print(f"({row},{col})", end=" ")
    print()

Show Bonus Solution

size = int(input("Grid size: "))

for row in range(size):
    for col in range(size):
        print(f"({row},{col})", end=" ")
    print()