摘要: 用 \(f(x)\) 表示一个关于 \(x\) 的代数式。 用 \(f(a)\) 表示当 \(x=a\) 时代数式是的值。 因式定理 \(f(x)\) 有因式 \((x-a)\) 则 \(f(x) = (x-a) \times g(x)\) $f(a) = (a-a) \times g(a) = 0 阅读全文
posted @ 2024-01-30 21:54 β-Ceti 阅读(63) 评论(0) 推荐(0)
摘要: 底层实现 #include<bits/stdc++.h> #define ll long long using namespace std; ll lower_bound(vector<ll>& nums,ll x) { ll left=0; ll right=nums.size()-1; whil 阅读全文
posted @ 2023-12-23 22:31 β-Ceti 阅读(32) 评论(0) 推荐(0)
摘要: Algorithm Introduction: lead into Scanning lines are generally used on graphics, and their literal meaning is very similar, meaning that a line sweeps 阅读全文
posted @ 2023-12-23 15:16 β-Ceti 阅读(123) 评论(0) 推荐(0)