CMU 15-112 Fall 2015 Quiz 6 Practice: Code Tracing
(Due never)

# Code Tracing #1 of 2
import string

def keyFn(val): return (ord(val) - ord('a'))%5
def ct1(st):
    (result, i) = ("", 1)
    for c in sorted(set(st) - set(st.upper()), key=keyFn):
        (result, i) = (result + i*c, i+1)
    return (result, set(result))
print(ct1("bCDfCBe"))

# Code Tracing #2 of 2
def ct2():
    (result, d) = (list(), dict())
    for x in range(1,20,3):
        d[x%4] = x
    for key in sorted(d.keys()):
        result.append((key, d[key]))
    return result
print(ct2())