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вернуться в форумПоказать все сообщения Спрятать все сообщения#include <iostream>
#include <cmath>
#include <stdio.h>
int main()
{
using namespace std;
int nRadius, nLenght;
double dAnswer, dPi = 3.141592654;
cin >> nLenght >> nRadius;
if (nRadius * nRadius >= nLenght * nLenght / 2) {
dAnswer = nLenght * nLenght;
} else if (nRadius <= nLenght / 2) {
dAnswer = nRadius * nRadius * dPi;
} else {
double dX = sqrt(nRadius * nRadius - nLenght * nLenght / 4);
double dSg = dPi * nRadius * nRadius / 360 * (360 - 8 * atan2(dX, nLenght / 2) * 57.296);
dAnswer = dSg + 4 * nLenght / 2 * dX;
}
printf("%0.3f", dAnswer);
return 0;
}
Edited by author 31.08.2013 17:00
Edited by author 31.08.2013 17:00 Firstly calculate all in radians, don't even think about degrees, because all
of cmath functions works in radians.
And you should change all integers to double.
Example: change 8 to 8.0 and so on.
Use standart pi constant M_PI
Check all functions.
Edited by author 17.05.2014 17:45 |
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