3-7_1
1 /* Author : grey_qisen */ 2 //3-7_1.cpp 3 4 #include<iostream> 5 const int CHANGENUM = 12; 6 int main(){ 7 using namespace std; 8 int height; 9 cout << "Please input your height(inch): \b\b\b"; 10 cin >> height; 11 cout << "Your height is " << height / 12 << " feet and " << height % 12 << " inchs." << endl; 12 13 return 0; 14 }
3-7_2
1 /* Author : grey_qisen */ 2 //3-7_2.cpp 3 4 #include<iostream> 5 const int footIntoInch = 12; 6 const double inchIntoMeter = 0.0254; 7 const double poundIntoKilogram = 2.2; 8 9 int main(){ 10 using namespace std; 11 int feet; int inch; 12 double pound; double BMI; 13 14 cout << "First,please input your height(feet): \b\b"; 15 cin >> feet; 16 cout << "Second,please input your height(inch): \b\b\b"; 17 cin >> inch; 18 inch = footIntoInch * feet + inch; 19 cout << "Your height is " << inch << endl; 20 21 cout << "Third,please input your weight(pound): \b\b\b\b"; 22 cin >> pound; 23 inch = inch * inchIntoMeter; 24 pound = pound / poundIntoKilogram; 25 26 BMI = pound / (inch * inch); 27 cout << "Your body‘s BMI is " << BMI << endl; 28 29 return 0; 30 }
3-7_3
1 /* Author : grey_qisen */ 2 //3-7_3.cpp 3 4 #include<iostream> 5 const double minuteToDegree = 60.0; 6 const double secondToMinute = 60.0; 7 8 int main(){ 9 using namespace std; 10 int degrees; int minutes; int seconds; 11 double latitude; 12 13 cout << "Enter a latitude in degrees,minutes,and seconds:" << endl; 14 cout << "First,enter the degrees: \b\b\b"; 15 cin >> degrees; 16 cout << "Next,enter the minutes of arc: \b\b"; 17 cin >> minutes; 18 cout << "Finally,enter the seconds of arc: \b\b"; 19 cin >> seconds; 20 latitude = degrees + minutes / minuteToDegree + seconds /(minuteToDegree * secondToMinute); 21 cout << degrees << " degrees, " << minutes << " minutes, " << seconds << " seconds= " 22 << latitude << " degrees" << endl; 23 24 return 0; 25 }
3-7_4
1 /* Author : grey_qisen */ 2 //3-7_4.cpp 3 4 #include<iostream> 5 const int dayToHour = 24; 6 const int hourToMinute = 60; 7 const int minuteToSecond = 60; 8 9 int main(){ 10 using namespace std; 11 long long second; 12 int days; int hours; int minutes; int seconds; 13 14 cout << "Enter the number of seconds: \b\b\b\b\b\b\b\b\b\b"; 15 cin >> second; 16 seconds = second % minuteToSecond; 17 minutes = (second / minuteToSecond) % hourToMinute; 18 hours = (second / (minuteToSecond * hourToMinute)) % dayToHour; 19 days = second / (minuteToSecond * hourToMinute * dayToHour); 20 21 cout << second << " seconds = " << days << " days, " << hours 22 << " hours, " << minutes << " minutes, " << seconds << " seconds" << endl; 23 24 return 0; 25 }
3-7_5
1 /* Author : grey_qisen */ 2 // 3-7_5.cpp 3 4 #include<iostream> 5 6 int main(){ 7 using namespace std; 8 long long worldPopulation; long long USPopulation; 9 10 cout << "Enter the world‘s population: \b\b\b\b"; 11 cin >> worldPopulation; 12 cout << "Enter the population of US: \b\b\b\b"; 13 cin >> USPopulation; 14 cout << "The popluation of the US is " << (100.0 * USPopulation / worldPopulation) 15 << "% of the world population." << endl; 16 17 return 0; 18 }
3-7_6
1 /* Author : grey_qisen */ 2 // 3-7_6.cpp 3 #include<iostream> 4 5 int main(){ 6 using namespace std; 7 double mile; double gallon; 8 double kilometer; double litre; 9 int m; 10 11 cout << "Choose a method of input(1 is mile/gallon;2 is Km/L):"; 12 cin >> m; 13 if(m == 1){ 14 cout << "You choose the first method of input." << endl 15 << "Now,please enter the mile: "; 16 cin >> mile; 17 cout << "Please enter the gallon: "; 18 cin >> gallon; 19 cout << mile / gallon << endl; 20 }else if(m == 2){ 21 cout << "You choose the second method of input." << endl 22 << "Now,please enter the kilometer: "; 23 cin >> kilometer; 24 cout << "Please enter the litre: "; 25 cin >> litre; 26 cout << (100 * litre) / kilometer << endl; 27 } 28 29 return 0; 30 }
3-7_7
1 /* Author : grey_qisen */ 2 // 3-7_7.cpp 3 #include<iostream> 4 5 int main(){ 6 using namespace std; 7 double Eur; double USh; 8 cout << "Please enter your Fuel consumption in Eur:"; 9 cin >> Eur; 10 USh = 0.6214 * 3.875 * (100 / Eur); 11 cout << USh; 12 13 return 0; 14 }
时间: 2024-10-10 07:21:00