1.1 (C++)

Design a class, Matrix5x5, to represent 5 by 5 matrixes.
This class should have the following member functions:
double get(int, int)
void set(int, int, double)
Matrix5x5 operator + (Matrix5x5 &, Matrix5x5 &)

EXAMPLE INPUT
1
2
3
4

EXAMPLE OUTPUT
4 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 4 0
0 0 0 0 2

主程序 (不能修改)

#include "source.cpp"
#include <iostream>
using namespace std;

void print(Matrix5x5 & matrix) {
    for (int row = 0; row < 5; ++ row) {
        for (int col = 0; col < 5; ++ col) {
            cout << matrix.get(row, col) << ' ';
        }
        cout << endl;
    }
}

int main() {
    Matrix5x5 m1, m2, m3;
    double value;
    cin >> value;
    m1.set(0, 0, value);
    cin >> value;
    m1.set(4, 4, value);
    cin >> value;
    m2.set(0, 0, value);
    cin >> value;
    m2.set(3, 3, value);
    m3 = m1 + m2;
    print(m3);
}

我的答案

class Matrix5x5{
    public:
    double number[5][5];
    
    Matrix5x5(){
        for (int row = 0; row < 5; ++ row) {
            for (int col = 0; col < 5; ++ col) {
              number[row][col]=0;
          }
       }
    }
    
    double get(int row, int col){
        return this->number[row][col];
    }
    
    void set(int a, int b, double c){
        //a,b为坐标，c为指定坐标赋值
        this->number[a][b]=c;
    }
    
    Matrix5x5 operator+(const Matrix5x5& n){
        Matrix5x5 m;
        for (int row = 0; row < 5; ++ row) {
            for (int col = 0; col < 5; ++ col) {
                m.number[row][col]=this->number[row][col]+n.number[row][col];
            }
        }
        return m;
    }
};