Number Triangle

Using nested loops, print a number triangle. Row r prints the numbers 1 through r with no spaces, for r from 1 to 4. Each row ends with a newline (see Expected Output).

The output ends with a newline after the last row.

Expected Output:

1↵
12↵
123↵
1234↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

Printing

Code Editor

Tab to indent (Esc then Tab to move on) · Ctrl+Enter to run · Shift+Alt+F to format · Ctrl+Space to expand shortcuts (p, fori)

Your Output

Run your code to see the output here...

Test Cases

Run your code to see test case results.