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房产开发商要求更改商品购房合同合理吗?

#include#include#includeclass Student{private: unsigned int id; std::string name; double score;public: Student(unsigned int i=0,char *s="",double j=0):id(i),name(s),score(j){} friend std::ostream&operator friend class sortbyID; friend class sortbyScore;};std::ostream& operator { return os}class so...全部

  #include#include#includeclass Student{private: unsigned int id; std::string name; double score;public: Student(unsigned int i=0,char *s="",double j=0):id(i),name(s),score(j){} friend std::ostream&operator friend class sortbyID; friend class sortbyScore;};std::ostream& operator { return os}class sortbyID{public: bool operator()(const Student& lhs,const Student& rhs) const { return lhs。
  id};class sortbyScore{public: bool operator()(const Student& lhs,const Student& rhs) const { return lhs。
  score};void main(){ const size_t N=5; Student s[N]; s[0]=Student(1005020124,"YA",88); s[1]=Student(1005020123,"YM",89); s[2]=Student(1005020126,"YG",80); s[3]=Student(1005020125,"XW",85); s[4]=Student(1005020127,"YT",91); std::cout std::sort(s,s N,sortbyID()); for(size_t i=0; i!=N; i) //是!=,不是=! std::cout std::cout std::sort(s,s N,sortbyScore()); for(size_t j=0; j!=N; j) //是!=,不是=! std::cout} 按学号排序1005020123 YM 891005020124 YA 881005020125 XW 851005020126 YG 801005020127 YT 91按成绩排序1005020126 YG 801005020125 XW 851005020124 YA 881005020123 YM 891005020127 YT 91请按任意键继续。
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