实验实验内容和实验要求

P148P154①将程序中的“s=1.0/2*(a+b+c；”语句改为“s=1/2*(a+b+c);”，再进行编译、、c));ify==2.2)”改为“iffabs(y-2.2)<1e-6)”，然后运行程序，查看结果，#include<iostream>#include<cmath>usingnamespacestd;intmain(){floatx,y;if(fabs(y-2.2)<1e-cout<<"x==y"<<endl;if(x=y)cout这是一个逻辑错误！endl;return0;}if(x=y)”到底要表达何意？请改成正确的形式。修改后的程序#include<iostream>#include<cmath>usingnamespacestd;intmain(){floatx,y;if(fabs(y-2.2)<1e-6)cout<<"x==y"<<endl;if(x==y)coutendl;return0;}#include<iostream>#include<cmath>usingnamespacestd;intmain(){floatcin>>a>>b>>c;if(fabs(a)<1e-6)cout<<"isnotquadratic"<<{if(fabs(d)<=1e- {cout<<"hastwoequalroots:\n";cout<<"x1=x2="<<x1<<}elseif(d>1e- {x1=(-cout<<"hastworealroots:\n"cout<<"x1="<<x1<<",x2="<<x2<<} {cout<<"hastwocomplexroots:cout<<"x1="<<lp<<"+"<<ip<<"i\n";cout<<"x2="<<lp<<"-"<<ip<<}}return}1位小数。#include<iostream>#include<cmath>#include<iomanip>usingnamespacestd;int{floatcin>>a>>b>>c;cout<<setprecision(1);if(fabs(a)<1e-cout<<"isnotquadratic"<<{iffabs(d)<=1e- //{cout<<"hastwoequalroots:\n";cout<<"x1=x2="<<x1<<}elseif(d>1e- //{x1=(-cout<<"hastworealroots:\n"cout<<"x1="<<x1<<",x2="<<x2<<} //{cout<<"hastwocomplexroots:cout<<"x1="<<lp<<"+"<<ip<<"i\n";cout<<"x2="<<lp<<"-"<<ip<<"i\n";}}return}switchdefaultdefaultcasebreak正确吗？请解释。caseswitch语句，有没有40,000s，编写程序，将其转换成几小时几分#include<iostream>usingnamespacestd;intmain(){inta=40000,b,c;a=(a-cout<<"40000秒是"<<a<<"小时"<<c<<"分钟"<<b<<"秒";return0;}#include<iostream>usingnamespacestd;intmain(){intif((a+b)>c&&(a+c)>b&&(b+c)>a{if(a*a+b*b==c*c||a*a+c*c==b*b||b*b+c*c==a*a)elseif(a==b&&elseif(a==b||a==c||b==c)}return0;}}rh（#include<iostream>usingnamespacestd;intmain(){ return}24688642。#include<iostream>usingnamespacestd;intmain(){int elseif(c==00&&d==0&&e==0&&f==0)elseif(d==0&&e==0&&f==0)elseif(e==0&&f==0)elseif(f==0){case(2):cout<<a<<""<<b;break;case(3):cout<<a<<""<<b<<""<<c;break;case(4):cout<<a<<""<<b<<""<<c<<""<<d;break;case(5):cout<<a<<""<<b<<""<<c<<""<<d<<""<<e;break;case(6):cout<<a<<""<<b<<""<<c<<""<<d<<""<<e<<""<<f;break;}return0;}4a成为最大值，d4个数。#include<iostream>usingnamespacestd;intmain(){inta,b,c,d,k,l,i,j;intm