// This code is written by Souvik Ghosh
#include <stdio.h>
#include <stdlib.h>
typedef struct
{
 int row, column;
 int sgg[10][10];
} MATRIX;
// Function for input the matrix
void input(MATRIX *p)
{
 printf("Please enter number of rows");
 scanf("%d", &p->row);
 printf("Please enter number of column");
 scanf("%d", &p->column);
 for (int i = 0; i < p->row; i++)
    {
 for (int j = 0; j < p->column; j++)
        {
 printf("Enter element [%d][%d]", i + 1, j + 1);
 scanf("%d", &p->sgg[i][j]);
        }
    }
}
// Function for output the matrix
void output(MATRIX m)
{
 for (int i = 0; i < m.row; i++)
    {
 printf("\n");
 for (int j = 0; j < m.column; j++)
        {
 printf("%d ", m.sgg[i][j]);
        }
    }
}
// Function for matrix multiplication using pointers
void multiplication(MATRIX m1, MATRIX m2, MATRIX *p)
{
 if (m1.column != m2.row)
    {
 printf("Matrix multiplication is impossible");
 return;
    }
 else
    {
 p->row = m1.row;
 p->column = m2.column;
 for (int i = 0; i < p->row; i++)
        {
 for (int j = 0; j < p->column; j++)
            {
 p->sgg[i][j] = 0;
 for (int k = 0; k < m1.column; k++)
                {
 p->sgg[i][j] += m1.sgg[i][k] * m2.sgg[k][i];
                }
            }
        }
    }
}
// Funcion for matrix multiplication without using pointers
MATRIX multiply(MATRIX m1, MATRIX m2)
{
 MATRIX t;
 t.row = m1.row;
 t.column = m2.column;
 for (int i = 0; i < t.row; i++)
    {
 for (int j = 0; j < t.column; j++)
        {
 t.sgg[i][j] = 0;
 for (int k = 0; k < m1.column; k++)
            {
 t.sgg[i][j] += m1.sgg[i][k] * m2.sgg[k][i];
            }
        }
    }
 return t;
}

void main()
{
 MATRIX m1, m2, s, t;
 input(&m1);
 input(&m2);
 multiplication(m1, m2, &s);
 printf("\nOutput Using First Function\n");
 output(s);
 printf("\nOutput Using Second Function\n");
 t = multiply(m1, m2);
 output(t);
}