Matrix Multiplication in C

# define row 10
# define col 10

int i, j;
int row1, col1;
int row2, col2;
float mat1[row][col];
float mat2[row][col];
float mat_res[row][col];

void mat_mult( float mat1[row][col], int, int,
float mat2[row][col], int, int,
float mat_res[row][col]);

void display(float mat[row][col], int, int);
void input(float mat[row][col], int , int);

/* function to multiply two matrices */

void mat_mult( float mat1[row][col], int row1, int col1,
float mat2[row][col], int row2, int col2,
float mat_res[row][col])
{
int i, j, k;
if(col1 == row2)
{
printf("\n Multiplication is possible and Result is as follows\n");

for(i =0; i< col1; k ++) { mat_res[i][j] += mat1[i][k] * mat2[k][j]; } } display(mat_res, row1, col2); } else printf("\n Multiplication is not possible"); exit(0); } /* Output function */ void display(float mat[row][col], int r, int c ) { for( i = 0; i < r; i++) { for( j = 0; j < c; j++) { printf(" %f", mat[i][j]); } printf("\n"); } } /* Input function */ void input(float mat[row][col], int r, int c) { for( i = 0 ; i< r; i++) { for( j = 0 ; j1:"); scanf("%d", &row1); printf("\n Input the col of the matrix->1:");
scanf("%d", &col1);

printf("\n Input data for matrix-> 1\n");
input(mat1, row1, col1);

printf("\n Input the row of the matrix ->2:");
scanf("%d", &row2);

printf("\n Input the col of the matrix->2:");
scanf("%d", &col2);

printf("\n Input data for matrix-> 2\n");
input(mat2, row2, col2);

printf("\n Entered Matrix First is as follows:\n");
display(mat1,row1,col1);

printf("\n Entered Matrix Two is as follows:\n");
display(mat2,row2,col2);

mat_mult(mat1 ,row1 ,col1, mat2, row2, col2, mat_res);
}