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
numbers
Indices under the cells are 0-based; the answer adds 1
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
Indices under the cells are 0-based; the answer adds 1
Keyboard: ← → step, Space play or pause. 2 to 10 sorted numbers (−99 to 99) with exactly one pair adding up to target. Answers are 1-based. In the Python hash-map version, mp[tmp] on a defaultdict also inserts tmp with 0; the map panel shows only real entries.