Lean is backed by Mathlib, the largest coherent body of formalized mathematics ever created: over 200,000 formalized theorems and 750 contributors. Five Fields medalists engage with Lean. The same platform serves mathematicians formalizing theorems and engineers verifying production systems. ACM SIGPLAN recognized this convergence with its 2025 Programming Languages Software Award: “Lean has become the de facto choice for AI-based systems of mathematical reasoning.”
could choose to use your program under the terms of the new license.I find neither approach to be ideal. It is often impossible to gain consensus
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// 步骤2：倒序遍历（从最后一个人往前推，符合"找右侧元素"的直觉）
Что думаешь? Оцени!