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!pip install jovian --upgrade --quiet
import jovian

Question 1: The user will enter a list of numbers and a separate number. The program will display the index at which the number is present in the list. If the number is absent, it'll return -1. Do NOT use built-in functions for searching.

lst=[]
while True:
    a=input("want to enter more list elements(y/n):")
    if a=='y':
        b=input("enter element:")
        lst.append(b)
    else:
        break
        
num=input("enter the number:")
#c=len(lst)
#print(c)
if num in lst:
    b=len(lst)
    for m in range(0,b):
        #print(m)
        if num==lst[m]:
            print("index of the number in the given list is ",m)
else:
    print(-1)
want to enter more list elements(y/n):y enter element:2 want to enter more list elements(y/n):y enter element:4 want to enter more list elements(y/n):y enter element:5 want to enter more list elements(y/n):n enter the number:5 index of the number in the given list is 2