program_2_11.cpp

清华关于C++ 的程序讲义 值得一看 关于算法

// Program 2.11: Compute average velocity of car
#include <iostream>
using namespace std;
int main() {
	cout << "All inputs are integers!\n";
	cout << "Start milepost? ";
	int StartMilePost;
	cin >> StartMilePost;
	
	cout << "End time (hours minutes seconds)? ";
	int EndHour, EndMinute, EndSecond;
	cin >> EndHour >> EndMinute >> EndSecond;
	
	cout << "End milepost? ";
	int EndMilePost;
	cin >> EndMilePost;
	
	float ElapsedTime = EndHour + (EndMinute / 60.0) + (EndSecond / 3600.0);
	int Distance = EndMilePost - StartMilePost;
	float Velocity = Distance / ElapsedTime;
	
	cout << "\nCar traveled " << Distance << " miles in ";
	cout << EndHour << " hrs " << EndMinute << " min " << EndSecond << "sec\n";
	cout << "Average velocity was " << Velocity << " mph" << endl;
	return 0;
}