使用多维数组实现两个矩阵相加的 C++ 程序
该程序采用两个 r*c
阶矩阵并将其存储在二维数组中。然后,程序将这两个矩阵相加并显示在屏幕上。
要理解此示例,您应该具备以下 C++ 编程 主题的知识:
在这个程序中,用户被要求输入行数 r
和列 c
. 在这个程序中, r
和 c
的值应该小于 100。
然后,要求用户输入两个矩阵的元素(r*c
阶)。
然后,程序将这两个矩阵相加,将其保存在另一个矩阵(二维数组)中并显示在屏幕上。
示例:使用多维数组添加两个矩阵
#include <iostream>
using namespace std;
int main()
{
int r, c, a[100][100], b[100][100], sum[100][100], i, j;
cout << "Enter number of rows (between 1 and 100): ";
cin >> r;
cout << "Enter number of columns (between 1 and 100): ";
cin >> c;
cout << endl << "Enter elements of 1st matrix: " << endl;
// Storing elements of first matrix entered by user.
for(i = 0; i < r; ++i)
for(j = 0; j < c; ++j)
{
cout << "Enter element a" << i + 1 << j + 1 << " : ";
cin >> a[i][j];
}
// Storing elements of second matrix entered by user.
cout << endl << "Enter elements of 2nd matrix: " << endl;
for(i = 0; i < r; ++i)
for(j = 0; j < c; ++j)
{
cout << "Enter element b" << i + 1 << j + 1 << " : ";
cin >> b[i][j];
}
// Adding Two matrices
for(i = 0; i < r; ++i)
for(j = 0; j < c; ++j)
sum[i][j] = a[i][j] + b[i][j];
// Displaying the resultant sum matrix.
cout << endl << "Sum of two matrix is: " << endl;
for(i = 0; i < r; ++i)
for(j = 0; j < c; ++j)
{
cout << sum[i][j] << " ";
if(j == c - 1)
cout << endl;
}
return 0;
}
输出
Enter number of rows (between 1 and 100): 2
Enter number of columns (between 1 and 100): 2
Enter elements of 1st matrix:
Enter element a11: -4
Enter element a12: 5
Enter element a21: 6
Enter element a22: 8
Enter elements of 2nd matrix:
Enter element b11: 3
Enter element b12: -9
Enter element b21: 7
Enter element b22: 2
Sum of two matrix is:
-1 -4
13 10