CompSci 101 Sec 02, Spring 2025 Exam 1

Problem 1

a <class 'str'> dog      
b <class 'str'> pi       
c <class 'str'> pencilpen
d <class 'int'> 5        
e <class 'str'> redred
f <class 'bool'> False   
g <class 'str'> spidird
h <class 'list'> ['book', 'pencil'] 
i <class 'list'> ['go', 'duke', 'win', 'big']  
j <class 'str'> bi
k <class 'str'> blue-red-pink
m <class 'float'> 6.1
n <class 'float'> 11.5


Problem 2

[5, 8, 7]
[7, 1, 4, ['row']]
[9, 4, 9, 4]
[5, 3, 12, [8], 9]
[5, 3, 12, [8]]


Problem 3A 

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


Problem 3B

result = str[6:8] + str[4:6]
OR
result = str[-3:-1] + str[-5:-3]
OR ANY COMBINATION OF THESE SUCH AS:
result = str[6:8] + str[-5:-3]

Problem 3C

result = lst[1][1][:3]
OR
result = lst[1][1][0:3]
OR
result = lst[-2][-1][-6:-3]
OR ANY COMBINATION OF THESE SUCH AS:
result = lst[-2][-1][:3]


Problem 3D

str = "melonraisinlemonapple"
temp = str.split("n")
result = "n*".join(temp)
OR
result = "n*".join(str.split("n"))

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 pickFruit(farm, limit, apples, pears):
    result = farm + ":limit is " + str(limit)+":"
    if apples >= limit and pears >= limit:
        return result + "too many of both"
    elif apples >= limit:
        return result + "too many apples"
    elif pears >= limit:
        return result + "too many pears"
    else:
        return result + "picked the right amount"

OR

def pickFruit(farm, limit, apples, pears):
    result = farm + ":limit is " + str(limit)+":"
    if apples >= limit and pears >= limit:
        result = result + "too many of both"
    elif apples >= limit:
        result = result + "too many apples"
    elif pears >= limit:
        result = result + "too many pears"
    else:
        result = result + "picked the right amount"
    return result
    
OR

def pickFruit(farm, limit, apples, pears):
    result = ""
    if apples >= limit and pears >= limit:
        result = "too many of both"
    elif apples >= limit:
        result = "too many apples"
    elif pears >= limit:
        result =  "too many pears"
    else:
        result = "picked the right amount"
    result = farm + ":limit is " + str(limit)+":" + result
    return result

OR

def pickFruit(farm, limit, apples, pears):
    result = ""
    if apples >= limit and pears >= limit:
        result = "too many of both"
    elif apples >= limit:
        result = "too many apples"
    elif pears >= limit:
        result =  "too many pears"
    else:
        result = "picked the right amount"
    items = [farm, "limit is " + str(limit), result]
    return ":".join(items)

OR

def pickFruit(farm, limit, apples, pears):
    result = farm + ":limit is " + str(limit)+":"
    if apples >= limit and pears >= limit:
        return result + "too many of both"
    if apples >= limit:
        return result + "too many apples"
    if pears >= limit:
        return result + "too many pears"
    return result + "picked the right amount"


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 numsLarger(lst, largest):
    count = 0
    for num in lst:
        if num > largest:
            count = count + 1
    return count

OR

def numsLarger(lst, largest):
    count = 0
    for num in lst:
        if num > largest:
            count += 1
    return count