Python code returns nothing after putting input

I am absolutely clueless because I ran this code earlier and it worked fine. I don’t remember changing anything. Once I enter my input it returns empty but is still running the program.

import random
print("This program finds the smallest difference between any two elements in"+
" a randomly generated list of integers, using two different algorithms with"+ 
" different Big-O efficiency.\n")

min_ran = int(input("Enter random min range:"))
max_ran = int(input("Enter random max range:"))
len_list = int(input("Enter length of list:"))

counter = 1
output_list = []
while counter <= len_list:
    output_list.append(random.randint(min_ran,max_ran))

def algorithm1():   
    diff = 10**20
    for i in range(len_list-1):
        for j in range(i+1,len_list):
            if abs(output_list[i]-output_list[j]) < diff:
                diff = abs(output_list[i]-output_list[j])
    return diff

def algorithm2():
    mid = len_list // 2
    list1 = output_list[:mid]
    list2 = output_list[mid:]
    list1.sort()
    list2.sort()
    ans = 10**20
    i = j = 0  
    while i < len(list1) and j < len(list2):
        ans = min(ans,abs(list1[i]-list2[j]))
        if list1[i] < list2[j]:
            i += 1
        else:
            j +=1
    return ans

print("\nList:",output_list)
print("List length:",len_list)
print(algorithm1())
print(algorithm2())

>Solution :

you don’t change your counter. it will cause an infinite loop.

counter = 1
output_list = []
while counter <= len_list:
    output_list.append(random.randint(min_ran,max_ran))

try:

output_list = [random.randint(min_ran,max_ran) for x in range(0,len_list)]

side note: I’d recommend using some kind of version control software such as git in order to avoid unwanted changes that cause small logical bugs.