weixin_47743471的博客

稀疏向量（svector） #include<iostream>using namespace std;#include<vector>const int N=1e6; struct shuzu{ int u; int v;}A[N],B[N];int main(){ int n, a, b; in...

线性分类器line#include<iostream>using namespace std;const int N = 1e3;struct site{ int x; int y; char ch;}s[N], s1[N], s2[N];int main(){ int n, m, j = 0, k = 0, temp[20]; cin >> n >> m; for (int i = 0; i < n; i++) { cin &