C++ Primer Plus 编程练习 3.7.4

#include<iostream>
using namespace std;
int main()
{
long day, hor, min, sec;
int in1;
cout << "Please input the number of seconds:";
cin >> in1;
const int danwei = 60;
const int hor_to_day = 24;
sec = long(in1 % danwei);
min = long(in1 / danwei % danwei);
hor = long(in1 / danwei / danwei % danwei);
day = long(in1 / danwei / danwei / hor_to_day);
cout << in1 << " seconds = " << day << " days, " << hor << " hours, " << min << " minutes, " << sec << " seconds." << endl;
cin.get();
cin.get();
return 0;
}

运行结果：