1.本函数功能是求水仙花数,如153=1*1*1+5*5*5+3*3*3,则153是水仙花数,并将结果写到一个文件中。#include#include#includevoidshuixianhua(){ofstreamf1;f1.open("水仙花数.txt");f1<<"你选择了水仙花数程序!它们分别是:"<intfunc(intm,intn){intr;r=m%n;while(r!=0){[3];[4];[5];}returnn;}intmain(){intx,y;cin>>x>>y;intresult;[6];//调用func计算最大公约数cout<classPoint{protected:intx,y;public:[1]//声明构造函数,形参m,n,默认参数为1,1~Point(){}intgetx(){returnx;}intgety(){returny;}[2]//声明虚函数display,用来显示数据成员[3]//声明友员函数,重载运算符“>>”};1.计算1+1/3+1/5+„+1/n之和#includedoublefun_sum(intn){inti;doubles;s=0;for(i=1;i<11;i++){[1];}[2];}intmain(){intn;cin>>n;doublesum;[2];//调用函数计算cout<<"sum="<59){[3];if(minute>59){[4];hour++;if(hour>23)hour=0;}}}intmain(){//定义时间类的对象time1并给出初值为5,30,0[5];}/*1.本函数功能是求水仙花数,如153=1*1*1+5*5*5+3*3*3,则153是水仙花数,并将结果写到一个文件中。*/#include#include#includevoidshuixianhua(){[1];f1.open("水仙花数.txt");f1<<"你选择了水仙花数程序!它们分别是:"<>y;[7];//以y的值修改date1的year成员date1.show();cout<classPoint{protected:intx,y;public:[8];//声明构造函数,形参m,n,默认参数为1,1~Point(){}intgetx(){returnx;}intgety(){returny;}[9];//声明虚函数display,用来显示数据成员[10];//声明友员函数,重载运算符“>>”};intmain(){Pointp1(1,2);return0;}//1.计算1+1/3+1/5+…+1/n之和#includedoublefun_sum(intn){inti;doubles;s=0;for(i=1;i<11;i++){[1];;}[2];}intmain(){intn;cin>>n;doublesum;[3];//调用函数计算cout<<"sum="<ClassExample{Public:Example(intn){[4];}~Example(){}intget_i(){[5];}private:inti;};intmain(){return0;}/*3.以下代码为类Time类的定义。*/classTime{public:voidIncrement();//时间增加函数[1];//声明带默认参数(0,0,0)的构造函数private:inthour;intminute;intsecond;}Time::Time(intinitHrs,intinitMins,intinitSecs){hour=initHrs;minute=initMins;second=initSecs;}boolTime::Equal(TimeotherTime)const{[2];}voidTime::Increment(){second++;if(second>59){[3];if(minute>59){[4];hour++;if(ho...