Question: T 5. Write the scan_keypad () function which scans the first row or column. It should return the pressed key char scan_keypad () 5. Write

5. Write the scan_keypad () function which scans the first row or column. It should return the pressed key char scan_keypad () 5. Write the scan_keypad () function which scans the first row or column. It should return the pressed key char scan_keypad ()

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