2023年5月24日
光速乘
摘要： ```cpp ll qmul(ll a, ll b, ll c){ a%=c, b%=c; ll w = (ld)a/c*b; ll r = (ull)a*b-(ull)w*c; return r<0?r+c:r; } ``` 阅读全文
posted @ 2023-05-24 16:20 383494 阅读(10) 评论(0) 推荐(0)