CompSci 101 Sec 01, Spring 2025 Exam 1

Problem 1

a <class 'str'> cat      
b <class 'str'> ib       
c <class 'str'> penruler
d <class 'int'> 5
e <class 'str'> blueblue
f <class 'bool'> False
g <class 'str'> spird
h <class 'list'> ['pencil', 'pen']   
i <class 'list'> ['go', 'duke', 'win', 'big']  
j <class 'str'> rd
k <class 'str'> blue*red*pink
m <class 'float'> 5.1
n <class 'float'> 12.5

Problem 2

[6, 4, 3]
[5, 1, 4, ['go']]   
[5, 8, 5, 8]        
[2, 3, 12, [7], 10]
[2, 3, 12, [7]]


Problem 3A (3 pts) 

result = lst[1][0] + lst[0][1]
OR
result = lst[-2][-3] + lst[-3][-3]
OR ANY COMBINATION OF THESE SUCH AS:
result = lst[1][-3] + lst[0][-3]


Problem 3B

result = str[4:6] + str[2:4]
OR
result = str[-5:-3] + str[-7:-5]
OR ANY COMBINATION OF THESE SUCH AS:
result = str[-5:-3] + str[2:4]


Problem 3C

result = lst[1][0][4:]
OR
result = lst[1][0][4:8]
OR
result = lst[-2][0][-4:]
OR ANY COMBINATION OF THESE SUCH AS:
result = lst[-2][0][4:]


Problem 3D

str = "tacogazpachoburritotamale"
temp = str.split("o")
result = "o-".join(temp)
OR
result = "o-".join(str.split("o"))

Problem 4 

def chairs(total, perc1, perc2):
    num1 = int(perc1 * total)
    num2 = int(perc2 * total)
    return total - num1 - num2

OR

def chairs(total, perc1, perc2):
    num1 = int(perc1 * total)
    num2 = int(perc2 * total)
    answer = total - num1 - num2
    return answer
OR

def chairs(total, perc1, perc2):
    num1 = int(perc1 * total)
    num2 = int(perc2 * total)
    sum = num1 + num2
    return total - sum

OR

def chairs(total, perc1, perc2):
    num1 = math.floor(perc1 * total)
    num2 = math.floor(perc2 * total)
    return total - num1 - num2

OR


def chairs(total, perc1, perc2):
    num1 = math.trunc(perc1 * total)
    num2 = math.trunc(perc2 * total)
    return total - num1 - num2


Problem 5 

def stats(opponent, player, points, rebounds):
    result = opponent + ":" + player + ":"
    if points >= 10 and rebounds >= 10:
        return result + "double-double"
    elif points >=10:
        return result + "more than 10 points"
    elif rebounds >= 10:
        return result + "more than 10 rebounds"
    else:
        return result + "practice harder"

OR

def stats(opponent, player, points, rebounds):
    result = opponent + ":" + player + ":"
    if points >= 10 and rebounds >= 10:
        return result + "double-double"
    if points >=10:
        return result + "more than 10 points"
    if rebounds >= 10:
        return result + "more than 10 rebounds"
    return result + "practice harder"

OR

def stats(opponent, player, points, rebounds):
    result = ""
    if points >= 10 and rebounds >= 10:
        result = "double-double"
    elif points >=10:
        result = "more than 10 points"
    elif rebounds >= 10:
        result = "more than 10 rebounds"
    else:
        result = "practice harder"
    return opponent + ":" + player + ":" + result


OR

def stats(opponent, player, points, rebounds):
    result = ""
    if points >= 10 and rebounds >= 10:
        result = "double-double"
    elif points >=10:
        result = "more than 10 points"
    elif rebounds >= 10:
        result = "more than 10 rebounds"
    else:
        result = "practice harder"
    items = [opponent, player, result]
    return ":".join(items)



Problem 6 


def compose(word1, word2, word3, word4):
    num = random.randint(1,2)
    ans = ""
    if num == 1:
        ans = word1
    else:
        ans = word2
    num = random.randint(1, 2)
    if num == 1:
        ans = ans + " " + word3
    else:
        ans = ans + " " + word4
    return ans

OR

def compose(word1, word2, word3, word4):
    num = random.randint(1,4)
    ans = ""
    if num == 1:
        ans = word1 + word3
    elif num == 2:
        ans = word1 + word4
    elif num == 3:
        ans = word2 + word3
    else:
        ans = word2 + word4
    return ans

OR

def compose(word1, word2, word3, word4):
    num = random.randint(1,4)
    ans = ""
    if num == 1:
        ans = word1 + word3
    if num == 2:
        ans = word1 + word4
    if num == 3:
        ans = word2 + word3
    if num == 4:
        ans = word2 + word4
    return ans

OR

def pick(word1, word2, word3, word4):
    return random.choice([word1+word3, word1+word4, word2+word3, word2+word4])


Problem 7 


PART A: 

hugesmall

OR

tinytiny

OR

Any two words from the list on line 9 stuck together. 


PART B: 

onefour

OR

sixone

OR

fourfour

OR any combination of two words from: ["one", "four", "six"]


PART C: 

list

PART D: 

The code randomly pick a word from wordlist, then randomly picks a second
word from wordlist, and then concatenates them together

PART E:

Line 3 or line 5 (must list both of them)

OR

Could be interpreted as

Line 2 or line 4 (must list both of them)


PART F: 

Trying to index into a position in the list that does not exist. It is
trying to index into the position just past the end of the list.

PART G: 

line 3 should be:

newPhrase = wordlist[index-1]

and line 5 should be:

newPhrase = newPhrase + wordlist[index-1]



OR Another way to fix it:

line 2 and line 4 should both be:

index = random.randint(0, len(wordlist)-1)


Problem 8  


def longer(wordlist, limit):
    count = 0
    for word in wordlist:
        if len(word) > limit:
            count = count + 1
    return count


OR

def longer(wordlist, limit):
    count = 0
    for word in wordlist:
        length = len(word)
        if length > limit:
            count += 1
    return count