摘要: const int mod = 1e9 + 7; struct mint{ mint(){} mint(int _k){ k = _k; } int k; mint operator = (const int &_k){ k = _k; return {k}; } friend mint opera 阅读全文
posted @ 2025-01-09 23:11 cbdsopa 阅读(4) 评论(0) 推荐(0) 编辑
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