1 结构体 #include <iostream> #include <cstring> using namespace std; void printBook( struct Book book ); struct Book { ]; ]; ]; int book_id; }; int main() { struct Book book1; struct Book book2; strcpy( book1.title, "Learn c++ Programming&qu…
#include<bits/stdc++.h> using namespace std; struct node{ int l,r; }num[]; int w_comp(const node &a,const node &b){ if (a.l!=b.l) return a.l>b.l;//先比较第一个关键字,从大到小排序 return a.r<b.r;//比较第二个关键字,从小到大排序 } int main(){ int n; cin>>n; ;i&…
/** Structure for an SQL data tuple of fields (logical record) */ struct dtuple_struct { ulint info_bits; /*!< info bits of an index record: the default is 0; this field is used if an index record is built from a data tuple */ ulint n_fields; /*!< n…