求以下问题的完整代码,要求使用c++面向对象的程序设计方法和构造函数
#include <iostream>
#include <cmath>
using namespace std;
class Data {
private:
int nums[6];
public:
void setNums(int n1, int n2, int n3, int n4, int n5, int n6) {
nums[0] = n1;
nums[1] = n2;
nums[2] = n3;
nums[3] = n4;
nums[4] = n5;
nums[5] = n6;
}
double getAverage() {
int sum = 0;
for (int i = 0; i < 6; i++) {
sum += nums[i];
}
return (double)sum / 6;
}
double getVariance() {
double avg = getAverage();
double sum = 0;
for (int i = 0; i < 6; i++) {
sum += pow(nums[i] - avg, 2);
}
return sum / 6;
}
};
int main() {
int n;
cin >> n;
for (int i = 0; i < n; i++) {
int n1, n2, n3, n4, n5, n6;
cin >> n1 >> n2 >> n3 >> n4 >> n5 >> n6;
Data data;
data.setNums(n1, n2, n3, n4, n5, n6);
double avg = data.getAverage();
double var = data.getVariance();
printf("%.2f %.2f\n", avg, var);
}
return 0;
}
您好,我是有问必答小助手,您的问题已经有小伙伴帮您解答,感谢您对有问必答的支持与关注!#include<bits/stdc++.h>
using namespace std;
const int N = 3;//行列式的阶数
//按第一行展开计算|A|
double getA(double arcs[N][N],int n)
{
if(n==1)
{
return arcs[0][0];
}
double ans = 0;
double temp[N][N]={0.0};
int i,j,k;
for(i=0;i<n;i++)
{
for(j=0;j<n-1;j++)
{
for(k=0;k<n-1;k++)
{
temp[j][k] = arcs[j+1][(k>=i)?k+1:k];
}
}
double t = getA(temp,n-1);
if(i%2==0)
{
ans += arcs[0][i]*t;
}
else
{
ans -= arcs[0][i]*t;
}
}
return ans;
}
//计算每一行每一列的每个元素所对应的余子式,组成A*
void getAStart(double arcs[N][N],int n,double ans[N][N])
{
if(n==1)
{
ans[0][0] = 1;
return;
}
int i,j,k,t;
double temp[N][N];
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
for(k=0;k<n-1;k++)
{
for(t=0;t<n-1;t++)
{
temp[k][t] = arcs[k>=i?k+1:k][t>=j?t+1:t];
}
}
ans[j][i] = getA(temp,n-1);
if((i+j)%2 == 1)
{
ans[j][i] = - ans[j][i];
}
}
}
}
//得到给定矩阵src的逆矩阵保存到des中。
bool GetMatrixInverse(double src[N][N],int n,double des[N][N])
{
double flag=getA(src,n);
double t[N][N];
if(flag==0)
{
return false;
}
else
{
getAStart(src,n,t);
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
des[i][j]=t[i][j]/flag;
}
}
}
return true;
}
int main(){
double a[N][N];
double ans[N][N];
cout << " 请输入"<<N<<" 阶矩阵:"<<endl;
for(int i=0;i<N;i++)
for(int j=0;j<N;j++)
{
cin >> a[i][j];
}
GetMatrixInverse(a,N,ans);
cout<<" 该矩阵的逆为:"<<endl;
for(int i=0;i<N;i++)
{
for(int j=0;j<N;j++)
{
cout << ans[i][j]<<" ";
}
cout<<endl;
}
}