讨论串消息 #28721

Lich

#include <iostream> #include <cmath> using namespace std; Int main() { double Y, A=0.3, B=2.8, C=-4.5, D=1.35; Y=A*pow(D, 3)/3+B*pow(C, 2)/2; cout <<"y="<<y<<endl; return 0;}