//C program to multiply two matrices
#include <stdio.h>
#include<stdlib.h>

//matrix dimensions so that we dont have to pass them as
//parametersmat1[R1][C1] and mat2[R2][C2]
#define R1 2
#define C1 2
#define R2 2
#define C2 3

void multiplyMatrix(int m1[][C1],int m2[][C2])
{
    int result[R1][C2];

    printf("Resultant matrix is:\n");

    for(int i=0;i<R1;i++){
        for(int j=0;j<C2;j++){
            result[i][j] =0;

            for(int k=0;k<R2;k++){
                result[i][j]+=m1[i][k] * m2[k][j];
            }

            printf("%d\t",result[i][j]);
        }

        printf("\n");
    }
}

//Driver code
int main() 
{
   //R1=4,C1=4,R2=4,C2=4(Update these 
   //values in MACROs)
    int m1[R1][C1]={{1,1},{2,2} };
    
    int m2[R2][C2]={{1,1,1},{2,2,2} };

    //if column of m1 not equal to rows of m2
    if(C1 != R2){
        printf("The number of columns in Matrix-1 must be"
            "equal to the number of rows in"
            "Matrix-2\n");
        printf("Please update MACROs value according to "
            "your array dimension in"
            "#define section\n");

        exit(EXIT_FAILURE);
    }

    //Function call
    multiplyMatrix(m1,m2);
    
    return 0;
}