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class Solution
{
    //Function to multiply two matrices.
    static int[][] multiplyMatrix(int A[][], int B[][])
    {
        int n1 = a.length;
        int m1 = a[0].length;
        int n2 = b.length;
        int m2 = b[0].length;
        
        if(m1!=n2)
        {
            int arr0[][] = new int[1][1];
            arr0[0][0] = -1;
            return arr0;
        }
        
        int arr[][] = new int[n1][m2];
        
        for(int i = 0 ; i<n1 ; i++)
        for(int j = 0 ; j<m2 ; j++)
        for(int q = 0; q<n2 ; q++)
        arr[i][j]+= a[i][q]*b[q][j];
        
        return arr;
    }
}
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Tue Feb 08 2022 08:21:15 GMT+0000 (UTC) https://practice.geeksforgeeks.org/problems/multiply-the-matrices-1587115620/1/?track=DSASP-Matrix&batchId=190

#java #gfg #geeksforgeeks #2d #array #matrix #practice #multiplication

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