c++primerplus(第六版)课后编程练习测试参考答案

精心整理

ad[i]=i*ad[i-1]; for(inti=0;i<101;i++) cout<

return0;

}

//ex.5.3

#include

intmain()

{

usingnamespacestd;

cout<<\

intsum=0,num; while((cin>>num)&&num!=0) { sum+=num; cout<<\cout<<\} return0; } //ex.5.4 #include intmain() { usingnamespacestd; doublesum1,sum2; sum1=sum2=0.0; intyear=0; while(sum2<=sum1) { ++year; sum1+=10;

sum2=(100+sum2)*0.05+sum2;

}

cout<<\经过\年后，Cleo的投资价值才能超过Daphne的投资价值。\cout<<\此时，Cleo的投资价值为\，而Daphne的投资价值为\

return0; }

精心整理 //ex.5.5

#include constintMONTHS=12;

constchar*months[MONTHS]={\

tober\

intmain()

{

usingnamespacestd; intsales[MONTHS],sum=0; for(inti=0;i

{

cout<<\请输入在\的C++ForFools的销售量：\cin>>sales[i]; sum+=sales[i]; } cout<<\这一年中的C++ForFools的总销售量为：\return0; } //ex.5.6 #include constintMONTHS=12; constchar*months[MONTHS]={\tober\constchar*years[3]={\第一年\第二年\第三年\intmain() { usingnamespacestd; intyear_sale[3],sum=0,sales[3][MONTHS]; for(inti=0;i<3;i++) { inttemp=0; cout<>sales[i][j]; temp+=sales[i][j];

}

year_sale[i]=temp; sum+=year_sale[i];

}

for(inti=0;i<3;i++)

cout<

cout<<\这三年的总销售量为：\

return0;

}

//ex.5.7

精心整理

#include #include usingnamespacestd;

structcar{ stringname; intyear;

}; intmain()

{

cout<<\

intnum; (cin>>num).get(); car*ps=newcar[num]; for(inti=0;i>ps[i].year).get(); } cout<<\for(inti=0;i #include intmain() { usingnamespacestd; charword[20]; intsum=0; cout<<\

cin>>word;

while(strcmp(word,\

{ sum++; cin>>word;

}

cout<<\

return0;

}

//ex.5.9

#include

精心整理

#include

intmain()

{

usingnamespacestd;

stringword; intsum=0;

cout<<\

cin>>word; while(word!=\

{ sum++; cin>>word; } cout<<\return0; } #include intmain() { usingnamespacestd; cout<<\ intnum; cin>>num; { for(inti=0;i1;j--) cout<<\for(intk=0;k<=i;++k) cout<<\ } cout<