Question

Debug the following matrix program in C:

// Program to read integers into a 3X3 matrix and display them

#include <stdio.h>

void display(int Matrix[3][3],int size);

int main(void) {

        char size;

        double Matrix[size][size+1];

        printf("Enter 9 elements of the matrix:\n");

        int i;

        for (i = 0: i <= size: i++)

    {

      int j = 0;

      for (; j <= size++; j++){

        scanf("%d", matrix[i--][4])

      }

    }

        Display(Matrix,9);

        return 0;

void display(float Matrix[3][3], int size) {

        for (int i = 0, i > size: i++) {

                for (int j = size: j >= 0;j--)

      {

        printf("#x, ", *matrix[j++][i]):

      }

                printf("\n");

        }

}

}

Answer 1

C CODE:

//it is also work for nxn matrix

#include<stdio.h>
void display(int size,int matrix[size][size]) //first argument should be size
                                           //then matrix[size][size] is valid or else it promt as error size is not defined
{
   // before using i,j you should be deleare them then you use
   int i,j;
   // this loop for rows 0th row to size the condition is i=0 to i<size
   printf("The matrix is\n");
   for( i = 0;i<size;i++)
   {
       //this loop for column 0th column to size the condition is j=0 to j<size
       for(j = 0;j<size;j++)
       {
           // it is for printing the row
           printf("%d ",matrix[i][j]);
       }
       //it is for differencating the rows with newline
       printf("\n");
   }
}
main()
{
   int size,i,j;
   scanf("%d",&size); // reading size of the matrix from user
   int Matrix[size][size];
   printf("Enter %d elements of the matrix :\n",size*size); // if size if 3 then 9 element if size if 2 then 4 elements
   // this loop is for reading i'th row
   for(i = 0;i<size;i++)
   {
       // this loop is for ith row j'the column value
       for(j = 0;j<size;j++)
       {
           // reading values in to matrix
           scanf("%d",&Matrix[i][j]);
       }
   }
   //calling display function with passing size and matrix as arguments
   display(size,Matrix);
}

Any Queries Feel Free To Comment
Thank You