* 时间复杂度: O(d*(n+k)) d:位数 k:进制(10) 空间复杂度: O(n+k) 稳定: ✓
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2025 年度，共有5915 家企业披露研发投入合计2.71 万亿元。其中，排名前100 企业（TOP100）的研发投入总计1.43 万亿元，较上年提升5.15%，头部效应更加明显；TOP100 企业研发占比（52.77%）也略高于上年（52.31%），资源集中度进一步提高。
01:35, 28 февраля 2026Россия