Feb 10, 2022

[c/c++] 2차원 배열 곱 | matrix multiplication of 2-D array

 

#include <iostream>

using namespace std;

int main()

{

int c_matrix0[3][3] = {

{1, 2, 3},

{4, 5, 6},

{7, 8, 9}

};

int c_matrix1[3][3] = {

{1, 2, 3},

{4, 5, 6},

{7, 8, 9}

};

int multi_matrix[3][3] = {};

for (int i = 0; i < 3; i++)

{

for (int j = 0; j < 3; j++)

{

for (int k = 0; k < 3; k++)

{

multi_matrix[i][j] +=  c_matrix0[i][k] * c_matrix1[k][j];

}

}

}

for (int i = 0; i < 3; i++)

{

for (int j = 0; j < 3; j++)

{

cout << multi_matrix[i][j] << " ";

}

cout << endl;

}

}

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