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c++primerplus最全课后习题答案.pdf
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
目录
Chapter 2 ............................................................................................................................................................... 3
PE 2-1 ............................................................................................................................................................ 3
PE 2-2 ............................................................................................................................................................ 3
PE 2-3 ............................................................................................................................................................ 4
PE 2-4 ............................................................................................................................................................ 4
PE 2-5 ............................................................................................................................................................ 5
PE 2-6 ............................................................................................................................................................ 5
Chapter 3 ............................................................................................................................................................... 6
PE 3-1 ............................................................................................................................................................ 6
PE 3-2 ............................................................................................................................................................ 6
PE 3-3 ............................................................................................................................................................ 7
PE 3-4 ............................................................................................................................................................ 7
PE 3-5 ............................................................................................................................................................ 8
PE 3-6 ............................................................................................................................................................ 8
Chapter 4 ............................................................................................................................................................... 9
PE 4-1 ............................................................................................................................................................ 9
PE 4-2 ............................................................................................................................................................ 9
PE 4-3 .......................................................................................................................................................... 10
PE 4-4 .......................................................................................................................................................... 10
PE 4-5 .......................................................................................................................................................... 11
PE 4-6 .......................................................................................................................................................... 11
PE 4-7 .......................................................................................................................................................... 12
PE 4-8 .......................................................................................................................................................... 12
PE 4-9 .......................................................................................................................................................... 13
Chapter 5 ............................................................................................................................................................. 13
PE 5-1 .......................................................................................................................................................... 13
PE 5-2 .......................................................................................................................................................... 14
PE 5-3 .......................................................................................................................................................... 14
PE 5-4 .......................................................................................................................................................... 15
PE 5-5 .......................................................................................................................................................... 16
PE 5-6 .......................................................................................................................................................... 17
PE 5-7 .......................................................................................................................................................... 19
PE 5-8 .......................................................................................................................................................... 19
PE 5-9 .......................................................................................................................................................... 20
Chapter 6 ............................................................................................................................................................. 20
PE 6-1 .......................................................................................................................................................... 20
PE 6-2 .......................................................................................................................................................... 21
PE 6-3 .......................................................................................................................................................... 22
PE 6-4 .......................................................................................................................................................... 22
PE 6-5 .......................................................................................................................................................... 24
PE 6-6 .......................................................................................................................................................... 25
PE 6-7 .......................................................................................................................................................... 27
PE 6-8 .......................................................................................................................................................... 27
PE 6-9 .......................................................................................................................................................... 28
Chapter 7 ............................................................................................................................................................. 29
PE 7-1 .......................................................................................................................................................... 30
PE 7-2 .......................................................................................................................................................... 30
PE 7-3 .......................................................................................................................................................... 32
PE 7-4 .......................................................................................................................................................... 32
PE 7-5 .......................................................................................................................................................... 33
PE 7-6 .......................................................................................................................................................... 34
PE 7-7 .......................................................................................................................................................... 35
SP 1 of 174 September 2, 2004
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
PE 7-8 .......................................................................................................................................................... 37
PE 7-9 .......................................................................................................................................................... 38
Chapter 8 ............................................................................................................................................................. 39
PE 8-1 .......................................................................................................................................................... 39
PE 8-2 .......................................................................................................................................................... 40
PE 8-3 .......................................................................................................................................................... 41
PE 8-4 .......................................................................................................................................................... 42
PE 8-5 .......................................................................................................................................................... 43
PE 8-6 .......................................................................................................................................................... 43
PE 8-7 .......................................................................................................................................................... 44
Chapter 9 ............................................................................................................................................................. 45
PE 9-1 .......................................................................................................................................................... 45
PE 9-2 .......................................................................................................................................................... 47
PE 9-3 .......................................................................................................................................................... 48
PE 9-4 .......................................................................................................................................................... 48
Chapter 10............................................................................................................................................................ 49
PE 10-1 ........................................................................................................................................................ 49
PE 10-2 ........................................................................................................................................................ 50
PE 10-3 ........................................................................................................................................................ 51
PE 10-4 ........................................................................................................................................................ 53
PE 10-5 ........................................................................................................................................................ 55
PE 10-6 ........................................................................................................................................................ 57
PE 10-7 ........................................................................................................................................................ 59
PE 10-8 ........................................................................................................................................................ 60
Chapter 11............................................................................................................................................................ 62
PE 11-1 ........................................................................................................................................................ 62
PE 11-2 ........................................................................................................................................................ 67
PE 11-3 ........................................................................................................................................................ 72
PE 11-4 ........................................................................................................................................................ 77
PE 11-5 ........................................................................................................................................................ 79
PE 11-6 ........................................................................................................................................................ 81
PE 11-7 ........................................................................................................................................................ 84
Chapter 12............................................................................................................................................................ 86
PE 12-1 ........................................................................................................................................................ 86
PE 12-2 ........................................................................................................................................................ 88
PE 12-3 ........................................................................................................................................................ 92
PE 12-4 ........................................................................................................................................................ 95
PE 12-5 ........................................................................................................................................................ 97
PE 12-6 ...................................................................................................................................................... 101
Chapter 13.......................................................................................................................................................... 106
PE 13-1 ...................................................................................................................................................... 106
PE 13-2 ...................................................................................................................................................... 109
PE 13-3 ...................................................................................................................................................... 113
PE 13-4 ...................................................................................................................................................... 117
Chapter 14.......................................................................................................................................................... 120
PE 14-1 ...................................................................................................................................................... 120
PE 14-2 ...................................................................................................................................................... 123
PE 14-3 ...................................................................................................................................................... 126
PE 14-4 ...................................................................................................................................................... 133
PE 14-5 ...................................................................................................................................................... 135
Chapter 15.......................................................................................................................................................... 141
PE 15-1 ...................................................................................................................................................... 141
PE 15-2 ...................................................................................................................................................... 144
PE 15-3 ...................................................................................................................................................... 146
PE 15-4 ...................................................................................................................................................... 148
Chapter 16.......................................................................................................................................................... 152
SP 2 of 174 September 2, 2004
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
PE 16-1 ...................................................................................................................................................... 152
PE 16-2 ...................................................................................................................................................... 153
PE 16-3 ...................................................................................................................................................... 153
PE 16-4 ...................................................................................................................................................... 154
PE 16-5 ...................................................................................................................................................... 155
PE 16-6 ...................................................................................................................................................... 156
PE 16-7 ...................................................................................................................................................... 158
PE 16-8 ...................................................................................................................................................... 159
Chapter 17.......................................................................................................................................................... 160
PE 17-1 ...................................................................................................................................................... 160
PE 17-2 ...................................................................................................................................................... 160
PE 17-3 ...................................................................................................................................................... 161
PE 17-4 ...................................................................................................................................................... 162
PE 17-5 ...................................................................................................................................................... 163
PE 17-6 ...................................................................................................................................................... 164
PE 17-7 ...................................................................................................................................................... 173
Chapter 2
PE 2-1
//pe2-1.cpp
#include
int main()
{
using namespace std;
cout<<"Name:"<<" liangdongxu "<
int main(void)
{
using namespace std;
cout << "Enter a distance in furlongs: ";
double furlongs;
cin >> furlongs;
double feet;
feet = 220 * furlongs;
cout << furlongs << " furlongs = "
<< feet << " feet\n";
return 0;
}
SP 3 of 174 September 2, 2004
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
PE 2-3
// pe2-3.cpp
#include
using namespace std;
void mice();
void run();
int main()
{
mice();
mice();
run();
run();
return 0;
}
void mice()
{
cout << "Three blind mice\n";
}
void run()
{
cout << "See how they run\n";
}
PE 2-4
// pe2-4.cpp
#include
double C_to_F(double);
int main()
{
using namespace std;
cout << "Enter a temperature in Celsius: ";
double C;
cin >> C;
double F;
F = C_to_F(C);
cout << C << " degrees Celsius = "
<< F << " degrees Fahrenheit\n";
return 0;
}
double C_to_F(double temp)
{
return 1.8 * temp + 32.0;
}
SP 4 of 174 September 2, 2004
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
PE 2-5
// pe2-5.cpp
#include
double lightyear_to_astro(double);
int main()
{
using namespace std;
cout<<"Enter the number of light years: ";
double years, astrounit;
cin>>years;
astrounit = lightyear_to_astro(years);
cout<
using namespace std;
void maketime(int, int);
int main()
{
double hours, minutes;
cout<<"Enter the number of hours: ";
cin>>hours;
cout<<"Enter the number of minutes: ";
cin>>minutes;
maketime(hours,minutes);
return 0;
}
void maketime(int hours, int minutes)
{
cout<<"Time: "<
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
Chapter 3
PE 3-1
// pe3-1.cpp
#include
const int Inch_Per_Foot = 12;
int main(void)
{
using namespace std;
// Note: some environments don't support the backspace character
cout << "Please enter your height in inches: ___\b\b\b ";
int ht_inch;
cin >> ht_inch;
int ht_feet = ht_inch / Inch_Per_Foot;
int rm_inch = ht_inch % Inch_Per_Foot;
cout << "Your height is " << ht_feet << " feet, ";
cout << rm_inch << " inch(es).\n";
return 0;
}
PE 3-2
// pe3-2.cpp
#include
const int Inch_Per_Foot = 12;
const double Meter_Per_Inch = 0.0254;
const double Pound_Per_Kilo = 2.2;
int main(void)
{
using namespace std;
// Note: some environments don't support the backspace character
cout << "Please enter your height in foot and inches: ___\b\b\b ";
int ht_inch,ht_foot;
cin>>ht_foot>>ht_inch;
cout<<"Please enter your weight in pounds:";
double weight;
cin>>weight;
double bmi = (weight/Pound_Per_Kilo)/(((ht_foot *
Inch_Per_Foot+ht_inch)/Meter_Per_Inch)*((ht_foot *
Inch_Per_Foot+ht_inch)/Meter_Per_Inch));
cout << "Your height is " <<( ht_foot*Inch_Per_Foot+ht_inch)<<” inches”;
cout<<” and ”;
cout <<"Your BMI is "<
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
PE 3-3
// pe3-3.cpp
#include
const double MINS_PER_DEG = 60.0;
const double SECS_PER_MIN = 60.0;
int main()
{
using namespace std;
int degrees;
int minutes;
int seconds;
double latitude;
cout << "Enter a latitude in degrees, minutes, and seconds:\n";
cout << "First, enter the degrees: ";
cin >> degrees;
cout << "Next, enter the minutes of arc: ";
cin >> minutes;
cout << "Finally, enter the seconds of arc: ";
cin >> seconds;
latitude = degrees + (minutes + seconds / SECS_PER_MIN)/MINS_PER_DEG;
cout << degrees << " degrees, " << minutes << " minutes, "
<< seconds << " seconds = " << latitude << " degrees\n";
return 0;
}
PE 3-4
// pe3-4.cpp
#include
const int Hours_Per_Day = 24;
const int Mins_Per_Hour = 60;
const int Seconds_Per_Minute = 60;
int main()
{
using namespace std;
int day;
int hour;
int minute;
int second;
long seconds;
cout << "Enter the number of the seconds:";
cin>>seconds;
day = seconds/(Hours_Per_Day * Mins_Per_Hour * Seconds_Per_Minute);
hour = (seconds%(Hours_Per_Day * Mins_Per_Hour *
Seconds_Per_Minute))/(Mins_Per_Hour*Seconds_Per_Minute);
minute = ((seconds%(Hours_Per_Day * Mins_Per_Hour *
Seconds_Per_Minute))%(Mins_Per_Hour*Seconds_Per_Minute))/Seconds_Per_Minute;
SP 7 of 174 September 2, 2004
Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
second = ((seconds%(Hours_Per_Day * Mins_Per_Hour *
Seconds_Per_Minute))%(Mins_Per_Hour*Seconds_Per_Minute))%Seconds_Per_Minute;
cout << seconds<< " seconds = " << day << " days, "
<< hour << " hours," << minute << " minutes"<
int main(void)
{
using namespace std;
cout << "How many miles have you driven your car? ";
float miles;
cin >> miles;
cout << "How many gallons of gasoline did the car use? ";
float gallons;
cin >> gallons;
cout << "Your car got " << miles / gallons;
cout << " miles per gallon.\n";
return 0;
}
PE 3-6
// pe3-6.cpp
#include
const double KM100_TO_MILES = 62.14;
const double LITERS_PER_GALLON = 3.875;
int main ( void )
{
using namespace std;
double euro_rating;
double us_rating;
cout << "Enter fuel consumption in liters per 100 km: ";
cin >> euro_rating;
// divide by LITER_PER_GALLON to get gallons per 100-km
// divide by KM100_TO_MILES to get gallons per mile
// invert result to get miles per gallon
us_rating = (LITERS_PER_GALLON * KM100_TO_MILES) / euro_rating;
cout << euro_rating << " liters per 100 km is ";
cout << us_rating << " miles per gallon.\n";
return 0;
}
SP 8 of 174 September 2, 2004
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