Both platforms offer competitor analysis tools,
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。关于这个话题，夫子提供了深入分析
// 本地测试示例：head = [2,1,5] → 输出 [5,5,0]
公式： f(x)=x⋅Φ(x)≈0.5x(1+tanh[2/π(x+0.044715x3)])