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Practice

Greedy Proof Drills

⭐⭐⭐ advanced~20 min of coding3 challenges

Three drills: the correct exchange key, the stack-limit trap, and proof-before-trust discipline.

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What you will practice

  1. Two Keys, One Order⭐⭐⭐ advanced
  2. The Broken Stacking⭐⭐⭐ advanced
  3. The Half Proof⭐⭐⭐ advanced

Need the concept first? Re-read the lesson.