题解 | #计算两个矩阵的乘积#

#include <iostream>
using namespace std;

void sum(int a[][3],int b[][2]){
    int c[2][2]={0,0,0,0};
    int j = 0;
    int sum;
    for (int i = 0; i < 2; i++){   //计算
        sum = 0;
        for (int k = 0; k < 3; k++){    //计算c数组第一列的结果
            sum += a[i][k] * b[k][0];
        }
        c[i][j] = sum;
        j++;
        cout<<sum << " ";

        sum = 0;
        for (int k = 0; k < 3; k++){    //计算c数组第二列的结果
            sum += a[i][k] * b[k][1];
        }
        c[i][j] = sum;
        j++;
        cout<<sum <<endl;
    }

}
int main() {
    int a[2][3], b[3][2];

    for (int i = 0; i < 2; i++){    //a数组输入
        for (int j = 0; j < 3; j++){
            cin>>a[i][j];
        }
    }
    for (int i = 0; i < 3; i++){    //b数组输入
        for (int j = 0; j < 2; j++){
            cin>>b[i][j];
        }
    }

    sum(a,b);
   
}

暴力解