Extra Exercises¶

1. Write code that asks the user to enter a numeric score (0-100). In response, it should print out the score and corresponding letter grade, according to the table below.

   Score	Grade
   >= 90	A
   [80-90)	B
   [70-80)	C
   [60-70)	D
   < 60	F

   The square and round brackets denote closed and open intervals. A closed interval includes the number, and open interval excludes it. So 79.99999 gets grade C , but 80 gets grade B.

   sc = input("Enter a score from 0 to 100 (decimal points are allowed)") fl_sc = float(sc) if fl_sc < 60: gr = "F" elif fl_sc <70: gr = "D" elif fl_sc < 80: gr = "C" elif fl_sc < 90: gr = "B" else: gr = "A" print("Score", fl_sc, "gets a grade of", gr)

2. A year is a leap year if it is divisible by 4, unless it is a century that is not divisible by 400. Write code that asks the user to input a year and output True if it’s a leap year, or False otherwise. Use if statements.

   Here are some examples of what the output should be for various inputs.

   Year	Leap?
   1944	True
   2011	False
   1986	False
   1800	False
   1900	False
   2000	True
   2056	True