程序设计期末复习

程序设计期末复习
7891 一元三次方程求解
#include
#include
using namespace std;

double a, b, c, d;

double f(double x) {
return a * x * x * x + b * x * x + c * x + d;
}

int main() {
cin >> a >> b >> c >> d;
double x1, x2, mid;
for (int i = -100; i < 100; i++) { x1 = i; x2 = i + 1; if (f(x1) == 0) { cout << fixed << setprecision(2) << x1 << " "; } else if (f(x1) * f(x2) < 0) { while (x

程序设计期末复习最先出现在Python成神之路。