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Level 26 · ◆◆◆ · ~13 min

Shortest Paths and the Arbitrage in Them

Shortest Paths and the Arbitrage in Them

"Dijkstra, Bellman-Ford, and the fact that a triangular arbitrage is a negative cycle in disguise."

Dijkstra with a heapwhy negative weights break itBellman-Ford and negative cyclesthe log transform
🚀 You're jumping ahead. This builds on Graphs, and How to Hold One — but play it now and you'll still earn full XP. If it feels steep, those make a gentler on-ramp.

A short lesson, then a quiz. ❤️×3 — a wrong answer costs a heart; finish with at least one left and the level is yours. Lose all three and you'll have to try again. Replay any time — XP and cleared levels are never lost.