Question

Where is the error?

def main():
-> start = int(input())
-> end = int(input())
-> prod = 0
-> while (start <= end):
--> prod = prod * start
--> start += 1
-> print (prod)
main()

Answer 1

The error in the code is at the line prod = prod * start. This line tries to update the value of prod, but it does not have an initial value assigned to it.

Step-by-step explanation:

The error in the code is at the line prod = prod * start. This line tries to update the value of prod, but it does not have an initial value assigned to it. Therefore, multiplying it by start will result in an error.

To fix the error, you need to assign an initial value to prod before the while loop. For example, you can add the line prod = 1 before the while loop starts.

The corrected code is as follows:

def main():
start = int(input())
end = int(input())
prod = 1

while (start <= end):
prod = prod * start
start += 1

print(prod)

main()