Complete the codeExercise 7/7Elementary20 XP
The sum from 1 to n
Task
The program reads a positive whole number n and prints the sum 1 + 2 + … + n. Fill in ___.
Examples
Input
5
Expected output
15
Rules
Replace
___with the right code.
After you submit, 2 hidden tests will also check your solution: n = 1, n = 100.
Python starts the first time you run code.
Ctrl+Enter runs the program. Tab indents. Press Esc, then Tab, to leave the editor.
Input (stdin)
Each line = one call to input().
Output
Hints
Try it yourself first. Each hint reveals a little more - and lowers the reward a little.
Signed out, hints are free - but no XP is awarded either.
Solution
The solution unlocks after the last hint.