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cprimerplus第六版第五章习题答案

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//1/*#include<iostream>using namespace std;int main(){cout << "请输入一个较小的整数:";int min;cin >> min;cout << "请输入一个较大的整数:";int max;cin >> max;int he=0;for (int i = min; i <= max; i++)he = i + he;cout << "这两个数之间所有数相加后的和为:" << he<<endl;system("pause");return 0;}*///2/*#include<iostream>#include<array>using namespace std;const int Arsize = 101;int main(){array<double, Arsize> aa ;aa[1] = aa[0] = 1;for (int i = 2; i < Arsize; i++)aa[i] = i*aa[i - 1];for (int i = 0; i < Arsize; i++)cout << i << "!=" << aa[i] << endl;system("pause");return 0;}*///3/*#include<iostream>using namespace std;int main(){cout << "请输入一个数字" << endl;int m=0, n;do{cin >> n;m = m + n;cout << "累计输入数字的和为：" << m << endl;}while (n != 0);system("pause");return 0;}*///4/*#include<iostream>using namespace std;int main(){double daphne = 110, cleo = 105;int i;for (i = 1; daphne > cleo; i++){daphne += 10;cleo *= 1.05;}cout << i << endl << daphne << endl << cleo;system("pause");return 0;}*///5/*#include<iostream>#include<string>using namespace std;int main(){const int Month=12;const int Number=12;const string month[Month] ={"January" ,"February","March","April","May","June","July","August","September","October","November","December",};int number[Number];int he=0;for (int i = 0; i < Month; i++){cout << month[i];cin >> number[i];he += number[i];}for (int i = 0; i < Month; i++){cout << month[i] << "\t";cout << number[i] << "\t";}cout << "和为：" << he;system("pause");return 0;}*///6/*#include<iostream>#include<string>using namespace std;int main()const int Month = 12;const int Year = 3;int number[Year][Month];string y[Year] = { "first","second","third" }; int he[Year] = {0,0,0};int h=0;cout << "请输入每个月的销量" << endl;for (int year = 0; year < Year; year++){cout << y[year] << "\t";for (int month = 0; month < Month; month++) {cin >> number[year][month];he[year] += number[year][month];cout << "\t";}h =h+ he[year];cout << he[year];cout << endl;}cout << h;system("pause");return 0;//7/*#include<iostream>#include<string>using namespace std;struct car{string name;int year;};int main(){int n;cout << "How many cars do you wish to catalog?";cin >> n;cin.get();car *p = new car[n];for (int i = 0; i < n; i++){cout << "Car #" << i + 1 << ":" << endl;cout << "Please enter the make:";getline(cin,p[i].name);cout << "Please enter the your made:";cin >> p[i].year;cin.get();}cout << "Here is your collection:" << endl;for (int i = 0; i < n; i++)cout << p[i].year << p[i].name << endl;system("pause");}*///8/*#include<iostream>#include<cstring>using namespace std;int main(){char word[20];int i=0;cin >> word;while (strcmp(word, "done") != 0){i++;cin >> word;}cout << i;system("pause");}*///9/*#include<iostream>#include<string>using namespace std;int main(){string word;int i = 0;cin >> word;while (word!="done"){i++;cin >> word;}cout << i;system("pause");}*///10#include<iostream>using namespace std;int main(){int row;char point = '.', star = '*';cout << "Enter number of rows: ";cin >> row;for (int m = 1; m <= row; m++){int n;for (n = 1; row - n >= m; n++){cout << point;}for (n; n <=row; n++){cout << star;}cout << endl;}system("pause");}.。

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《C++PrimerPlus（第六版）》（7）（第五章循环和关系表达式答案）

《C++PrimerPlus（第六版）》（7）（第五章循环和关系表达式答案）

《C++PrimerPlus（第六版）》（7）（第五章循环和关系表达式答案）5.8 复习题1.⼊⼝条件就是在进⼊循环的时候就检测，出⼝条件是先进⼊循环，再检测，⾄少可以执⾏⼀次循环。

for、while属于⼊⼝条件检测，do while属于出⼝条件检测。

2.01234int i;for (i = 0; i < 5; i++)cout << i;cout << endl;3.036912int j;for (j = 0; j < 11; j += 3)cout << j;cout << endl << j << endl;4.68int j = 5;while (++j < 9){cout << j++ << endl;}5.k = 8int k = 8;docout << "k = " << k << endl;while (k++ < 5);6.for (int i = 1; i <= 64; i *= 2){cout << i<<" ";}cout << endl;7.使⽤{}，其实就算只有⼀条语句，也应该使⽤{}，可以是代码更加清晰，⽽且说不定什么时候需求就要变了，⼀条语句通常⼲不了什么的。

8.都有效。

int x = (1, 024);//x为20，（）内返回024，0开头是8进制，即是20.int y;y = 1, 024;//y=1，之后024.就没了9.cin>>ch,跳过空格、换⾏符、制表符。

cin.get(ch) 和 ch = cin.get()可以读取这些字符5.9编程题1.int m = 0;int n = 0;cin >> m;cin >> n;if (m > n) {int t = m;m = n;n = t;}int total = 0;for (int i = m; i <= n; i++) {total += i;}cout << total <<endl;2.5.4程序清单const int ArSize = 16;long long factorials[ArSize];factorials[1] = factorials[0] = 1LL;for (int i = 2; i < ArSize; i++) {factorials[i] = i * factorials[i-1];}for (int i = 0; i < ArSize; i++) {cout << i << " = " << factorials[i] << endl;}修改后：const int ArSize = 101;array<long double, ArSize> factorials;factorials[1] = factorials[0] = 1;for (int i = 2; i < ArSize; i++) {factorials[i] = i * factorials[i-1];}for (int i = 0; i < ArSize; i++) {cout << i << " = " << factorials[i] << endl;}结果：0 = 11 = 12 = 23 = 64 = 245 = 1206 = 7207 = 50408 = 403209 = 36288010 = 3.6288e+0611 = 3.99168e+0712 = 4.79002e+0813 = 6.22702e+0914 = 8.71783e+1015 = 1.30767e+12。

C Primer Plus课后习题

C Primer Plus课后习题


6．编写一个能够产生下列输出的程序： Smile ! Smile ! Smile Smile ! Smile ! Smile ! 在程序中定义一个能显示字符串 smile 卜一次的函数，并在需要时使用该函数。 #include<stdio.h> void display(void); int main(void) { display(); display(); display(); printf("\n"); display(); display(); printf("\n"); display(); printf("\n"); return(0);
7. 1 英寸等于 2.54cm。编写一个程序，要求输入您的身高（以英寸为单位） ，然后显示该 身高值等于 多少厘米。如果您愿意，也可以要求以厘米为单位输入身高，然后以英寸为单位进行显示。
#include<stdio.h> int main(void) { float a; printf("Please input your height by inches:"); scanf("%f",&a); printf("Your height is %fcm.\n",a*2.54); return(0); }
#include<stdio.h> int main(void) { char a; scanf("%d",&a); printf("%c\n",a); return(0); }
3．编写一个程序，发出警报声，并打印下列文字： Startled by the sudden sound, Sally shouted, "By the Great Pumpkin, what was that!" #include<stdio.h> int main(void) { printf("\aStartled by the sudden sound,Sally shouted,\"By the Great pumpkin,what was that!\"\n");
C++Primer Plus(第6版)中文版编程练习答案--第五章

C++Primer Plus(第6版)中文版编程练习答案--第五章


9.
#include<iostream> #include<cstring> #include<string> using namespace std; int main() { string word; int i=0; cout<<"enter words(to stop, type the word done):"<<endl; cin>>word; while(word!="done") { i++; cin>>word; } cout<<"you entered a total of "<<i<<" words."<<endl; return 0; }
8.
#include<iostream> #include<cstring> using namespace std; int main() { char word[20]; int i=0;
5
cout<<"enter words(to stop, type the word done):"<<endl; cin>>word; while(strcmp(word,"done")!=0) { i++; cin>>word; } cout<<"you entered a total of "<<i<<" words."<<endl; return 0; }
【免费下载】c primer plus第六版第二至第五章课后编程练习答案

【免费下载】c primer plus第六版第二至第五章课后编程练习答案


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