m0_46223011的博客

9.4bool func(vector<int>::iterator beg,vector<int>::iterator end,int i){ while (beg!=end) { if (*beg==i) return true; ++beg; } return false;}int main(){ vector<int> v{1,2,3,5,6,9,45,5,8

8.1，8.2std::istream & func(std::istream& is){ string s; while (is>>s) { cout<<s<<endl; } is.clear(); return is;}int main(){ func(cin);}8.4vector<string> func(string s){ std:

C++ Primer 第七章 答案7.1Sales_data.h#ifndef SALES_DATA_H#define SALES_DATA_H#include <string>struct Sales_data{ std::string isbn() const {return bookNo;} Sales_data& combine(Sales_data&); std::string bookNo; unsigned units_

C++ Primer答案第六章 函数6.4 编写一个与用户交互的函数，要求输入一个数字，计算生成该数字的阶乘#include <iostream>using std::cin;using std::cout;using std::endl;int multify(int ){ int x; while (cin>>x) { int ret=1; while (x>1) { ret *= x--;