一元二次方程的根的情况分为实根与虚根两种,代码如下 #include<iostream> #include<cmath> using namespace std; float *solve_equ(float, float, float);//a, b, c int main() { float a, b, c; cout << "enter a, b, c : " << endl; cin >> a >> b&g…
题目难度:Medium 题目: Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution. 翻译: 给定一个n个整数的数组S,在S…