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QUESTION
use python program to allow the user to enter a sequence of nonnegative numbers. The user ends the list with a negative number. At the end the sum of...
use python program to allow the user to enter a sequence of nonnegative numbers. The user ends the list with a negative number. At the end the sum of the nonnegative numbers entered is displayed. The program prints zero if the user provides non-nonnegative numbers.
Sample output:
Enter numbers to sum, negative number ends list:Enter: 2
Enter: 5
Enter: 9
Enter: -1
Sum = 16
