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# Is This Integration ``` C++ #include #include #define pi 3.141592653589793 using namespace std; int main(){ double a; while(cin >> a){ double x, y, 阅读全文
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# Satellites ``` C++ #include #include using namespace std; int main() { const double pi = 3.14159265358979323846; const double earthR = 6440; double 阅读全文
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# Fourth Point !! ``` c++ #include using namespace std; class point { public: double x; double y; bool equals(const point &p) { if (p.x == x && p.y == 阅读全文