Reverse printing of input numbers after zero is received

August 1, 2022

In this code, I want the user to enter an integer, and until zero is entered, I receive input from the user. After receiving the number zero, I print the entered numbers except zero in the reverse order of their insertion.

I have two problems:
-One is how to not print the number zero in the output of the program
-And the second is how to correctly add the entry before the while loop to the num list

inp = int(input())
num = []
num.append(inp)
while inp > 0:
    out = int(input())
    num.append(out)
    if out == 0:
        for i in num[::-1]:
            print(i)

Sample input :   
3  
4  
7  
4  
9  
0

Sample output :  
9  
4  
7  
4  
3

But my output is like this :  
0  
9  
4  
7  
4  
3

>Solution :

Just add the condition that checks if the input is 0 before appending the value to the list

inp = int(input())
num = []
num.append(inp)
while inp > 0:
    out = int(input())
    if out == 0:
        for i in num[::-1]:
            print(i)

    num.append(out)

But

even the first input can be 0, so modify your code to this

num = []
out = 1

while out > 0:
    out = int(input())

    if out == 0:
        for i in num[::-1]:
            print(i)
    else:
        num.append(out)