Safe combination Set up an array to contain the six digits that open a safe. Ask the user to input six digits one by one from buttons labelled with the digits 0 to 9, and check whether they are...

Safe combination Set up an array to contain the six digits that open a safe. Ask the user to input six digits one by one from buttons labelled with the digits 0 to 9, and check whether they are correct. When a digit is entered, tell the user whether it is correct or not and give them three tries before making them start from the beginning again.