matrix_determinant.c

/******************************************************************************
Name:           Dhruba Saha
Roll No:        B.Sc(Sem-IV)-04
Program No:     4A
Program Name:   Write a C program to get determinant two matrices iteratively.
Date:           14/03/2022
*********************************************************************************/

#include <stdio.h>
#include <stdlib.h>

int inputMat();
int determinantMat();
void outputMat();

void main() {
  int m, n, i, **a, **b;

step1:
  printf("Enter the number of rows and columns of matrices:\n");
  scanf("%d%d", &m, &n);

  if (m != n) {
    printf("\nThe matrix must be a square matrix.\n");
    goto step1;
  }

  a = (int **)calloc(m, sizeof(int *));
  b = (int **)calloc(m, sizeof(int *));

  for (i = 0; i < m; i++) {
    a[i] = (int *)calloc(n, sizeof(int));
    b[i] = (int *)calloc(n, sizeof(int));
  }

  printf("Enter the elements of the matrix:\n");
  inputMat(a, m, n);

  printf("The determinant of the matrix: %d\n", determinantMat(a, b, m, n));

  for (int i = 0; i < m; i++) {
    free(a[i]);
    free(b[i]);
  }
}

int inputMat(int **a, int m, int n) {
  int i, j;
  for (i = 0; i < m; i++) {
    for (j = 0; j < n; j++) {
      printf("Element %d, %d:\n", i + 1, j + 1);
      scanf("%d", &a[i][j]);
    }
  }
}

int det(int **a, int m, int n) {
  int i, j;
  if (m != n) {
    printf("Order is not same !\n");
    exit(1);
  } else if (m == 1)
    return a[0][0];
  else if (m == 2)
    return a[0][0] * a[1][1] - a[0][1] * a[1][0];
  else
    int
}