C 例题及答案

作业1：输入两个变量，输出两个变量的最大值。要求：使用C+语言，使用max函数完成求最大值的操作。#includeintmax(intx,inty)return(xy?x:y);intmain(intargc,char*argv)inta,b;coutab;couta;return0;作业2：(1)输入下列简单C+程序，完成编译、连接、运行，熟悉C+程序的开发过程。#includeusingnamespacestd;constfloatPI=3.1416;voidmain() intiType;floatradius,a,b,area;coutiType;switch(iType)case1:coutradius;area=PI*radius*radius;couta;coutb;area=a*b;couta;area=a*a;coutusingnamespacestd;constdoublePI=3.1416;inlinefloatcirlearea(float);inlinefloatrectarea(float);inlinefloatzrectarea(float);voidmain() intiType;floatradius,a,b,area;coutiType;switch(iType)case1:coutradius;area=cirlearea(radius);couta;coutb;area=a*b;couta;area=a*a;coutusingnamespacestd;constdoublePI=3.1416;inlinefloatcirlearea(float,float);inlinefloatrectarea(float,float);inlinefloatzrectarea(float,float);voidmain() intiType;floatradius,a,b,area;float(*carea)(float,float);coutiType;switch(iType)case1:carea=cirlearea;coutradius;area=(*carea)(radius,a=0);couta;coutb;area=(*carea)(a,b);couta;area=(*carea)(a,a);coutusingnamespacestd;classRectprivate:intlength;intwidth;intperim;public:Rect() length=10;width=10;Rect(intlength,intwidth) this-length=length;this-width=width;voidsetLength(intlength) if(length0else cout0else coutusingnamespacestd;enumcpu_wordlenW16,W32,W64,W128,W256;classCPUpublic:CPU()frequency=0;wordlength=W16;coefficient=0;coutclasspointintx,y;public:point(inta,intb)x=a;y=b;cout#includeusingnamespacestd;classStudentpublic:Student(char*,int,bool);Student(constStudentStudent();Studentvoidprint();private:char*name;intage;boolsex;intlen;Student:Student(char*name,intage,boolsex)len=strlen(name);this-name=newcharlen+1;strcpy(this-name,name);this-age=age;this-sex=sex;Student:Student(constStudentthis-name=newcharlen+1;strcpy(this-name,);this-age=stu.age;this-sex=stu.sex;Student:Student()len=0;deletename;Studentthis-name=newcharlen+1;strcpy(this-name,);this-age=stu.age;this-sex=stu.sex;return*this;voidStudent:print()cout#includeclassCMelonSalepublic:CMelonSale(floatvWeight)m_Weight=vWeight;m_TotalWeight+=m_Weight;m_WeightStore.push_back(m_Weight);m_TotalNum+;CMelonSale()m_TotalNum-;staticvoidto