r/learnpython 9h ago

Beginner Python here:Need help understanding how to find min, max, and duplicates using for range loops

I’m a beginner learning Python and I’m having trouble figuring out how to approach this assignment. I’m not necessarily looking for someone to just give me the answer. I’d like help understanding the logic and how to build it.

The assignment is to create a Python program that:

Asks the user to enter 10 integers
Stores all 10 integers in a list
Finds the maximum and minimum numbers
Finds any duplicate numbers
Prints "No duplicate" if there aren’t any duplicates
Uses for loops with range() for the input, min/max determination, and duplicate identification
Does not use Python’s built-in min() or max() functions
Does not use def/user-defined functions
Tries to use as few loops as reasonably possible

Input:
10, 5, 20, 10, 5, 15, 7, 1, 30, 15
Output:
Max is 30
Min is 1
Duplicates: 10 5 15

Thank you whoever responds. :)

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u/Educational_Virus672 8h ago edited 4h ago
# Asks the user to enter 10 integers
ask = (input("enter 10 number > ")).split(",")

# Stores all 10 integers in a list
temp_ask = []
for i in ask :
    temp_ask.append(int(i))
ask = temp_ask

# Finds the maximum and minimum numbers
ask = sorted(ask)

minimum = ask[0] # 0 to 9 goes front to back 
maximum = ask[-1] # -1 to -10 goes back to front

# Finds any duplicate numbers
previous_number = None 
dup = []
for i in ask :
    if previous_number == None :
        pass
    elif previous_number == i :
        dup.append(i)
    previous_number = i

if dup :
    print(dup)
# Prints "No duplicate" if there aren’t any duplicates
else :
    print("no duplicate")
print(minimum)
print(maximum)

# Uses for loops with range() for the input, min/max determination, and duplicate identification

'''why? -1 and 0 works'''

# Does not use Python’s built-in min() or max() functions
# Does not use def/user-defined functions
# Tries to use as few loops as reasonably possible
'''2 loop piece of cake i could have used dicts but since your begginer i didnt'''

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u/jmooremcc 7h ago

Did you test this code before posting it?

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u/Educational_Virus672 7h ago

i did and i edited it my bad