Final answer:
To write code that assigns the sum of all user inputs, use a while loop and check if the user input is less than -1.
Step-by-step explanation:
To write code that assigns the sum of all user inputs, we can use a while loop and check if the user input is less than -1. Here's an example in Python:
sum = 0
while True:
num = float(input('Enter a number: '))
if num < -1:
break
sum += num
print('The sum is:', sum)
In this code, the while loop will continue until the user enters a number less than -1. The sum variable will keep track of the sum of all the inputs. Once the condition is met, the loop will break and the sum will be printed.