Answer:
The function in Python is as follows:
def printTwoLargest():
chk = 0
list1 = []
num = int(input("Enter: "))
while num > 0:
for i in list1:
if i == num:
chk+=1
break;
if chk == 0:
list1.append(num)
chk = 0
num = int(input("Enter: "))
list1.sort()
if len(list1) >= 2:
print("Largest:", list1[-1])
print("Second:", list1[-2])
else:
print("Length of list must be at least 2")
Explanation:
This defines the function
def printTwoLargest():
This initializes a check variable to 0
chk = 0
This initializes an empty list
list1 = []
This prompts the user for input
num = int(input("Enter: "))
The following loop is repeated until input is 0 or negative
while num > 0:
<em>The following for loop checks for duplicate</em>
<em> for i in list1:
</em>
<em> if i == num: </em><em>If duplicate is found</em><em>
</em>
<em> chk+=1 </em><em>The check variable is set to 1</em><em>
</em>
<em> break; </em><em>And the for loop is exited</em><em>
</em>
The input is appended to the list if the check variable is 0 (i.e. no duplicate)
<em> if chk == 0:
</em>
<em> list1.append(num)
</em>
This sets the check variable back to 0, for another input
chk = 0
This prompts the user for another input
num = int(input("Enter: "))
This sorts the list
list1.sort()
This prints the two largest if valid user input is 2 or more
<em> if len(list1) >= 2:
</em>
<em> print("Largest:", list1[-1])
</em>
<em> print("Second:", list1[-2])
</em>
if otherwise, this prints that the length must be at least 2
<em> else:
</em>
<em> print("Length of list must be at least 2")</em>
