1051. Biker's Trip Odomete

“算法分析与设计”作业第6题。

不知道为什么旋转次数revol和用时time是int就WA，基础弱成渣了啊T T

AC:

#include <iostream>#include <iomanip>using namespace std;#define pie 3.1415927int main() {double diameter, revol, time;int trip = 0;while(cin >> diameter >> revol >> time && revol != 0) {trip++;double dis = pie * diameter * revol / 63360;  //milesdouble speed = 3600 * dis / time;cout << "Trip #" << trip << ": "     << fixed << showpoint << setprecision(2)     << dis << ' ' << fixed << showpoint << setprecision(2) << speed << endl;}return 0;}