COSC 235B David A. Sykes
1
Test #1
March 7, 2008
Name: ___________________________ Pledged: ___________________________
Answer all questions. If you can’t remember Python syntax to do something, write in English what you
would like to do.
1. Show the output of each of the Python programs.
x = 100
m = 0.5
b = 10
y = m * x + b
print "y =", y
alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
print "1)", len(alphabet)
print "2)", alphabet[2]
print "3)", ord('C') - ord('A')
print "4)", alphabet[2:6]
print "5)", alphabet[:13] + alphabet[13:]
print "6)", alphabet[0:4].lower()
print "->",
for ch in "ABCDEF":
print ch,
print
def foo(amt):
amtLeft = amt
for x in [ 25, 10, 5, 1]:
n = amtLeft / x
print x, ':', n
amtLeft = amtLeft % x
foo(72)
def bar(n):
"Do something"
s = 0
for i in range(1, n+1):
s = s + i
return s
print "bar(3) =", bar(3)
Y = 60.0
Key
1) 26
2) C
3) 2
4) CDEF
5) ABCDEFGHIJKLMNOPQRSTUVWXYZXYZ
6) abcd
-> A B C D E F
25 : 2
10 : 2
5 : 0
1 : 2
bar(3) = 6
