Code
The highlighted line runs next. The pill shows the live values in the running call.
Cost
Work done so far, and how the four solutions compare
Tokens
Operators are shaded; used tokens fade
The highlighted line runs next. The pill shows the live values in the running call.
Work done so far, and how the four solutions compare
Operators are shaded; used tokens fade
Keyboard: ← → step, Space play or pause. Type up to 15 tokens separated by spaces or commas (or paste the JSON list): integers from -200 to 200 and + - * /. The page checks the expression is valid RPN and never divides by zero. "-7 2 /" shows truncation toward zero: −3.5 becomes −3, not −4.