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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.

def find(L,x):
    flag = 0 
    for i in range(len(L)):    #search to find the nunber x in the list
        if L[i] == x:
            print(i)
            flag = flag + 1
    if flag == 0:    # condition for no such number in list
        return -1
Enter the number of terms in the list: 3 Enter the 1 term1 Enter the 2 term2 Enter the 3 term3 Enter the number to search: 2 1 
L = []                                                             #input the list and number to find
n = int(input("Enter the number of terms in the list: "))
message = "Enter the {} term"
for i in range(1,n+1):
    y = int(input(message.format(i) ))
    L = L + [y]
x = int(input("Enter the number to search: "))
find(L,x)