Write a for loop that reads an integer from the user, and prints the sum of numbers from 1 to that integer (inclusive). If the user enters a number less than 1, he/she should be prompted to enter a number greater or equal to 1.

Written in Python

num = int(input("Number: "))

while num < 1:

    num = int(input("Number: "))

total = 0

for i in range(1, num+1):

    total= total + i

print("Total: "+str(total))

Explanation:

This line prompts user for input

num = int(input("Number: "))

The following iteration checks and prompts user for valid input

while num < 1:

    num = int(input("Number: "))

This initializes total to 0

total = 0

The following iteration adds from 1 to input number

for i in range(1, num+1):

    total= total + i

This displays the total

print("Total: "+str(total))

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