C Program Code to check whether a given matrix is Upper Triangular or Not

This is a sample C Program Code to check whether a given matrix is Upper Triangular or Not.

This is possible only in a square matrix

If you find any error or if you could suggest any changes in the code please let me know in the comment section.

Upper Triangular Matrix :

 0 1 1      0 1      0 1 1 1

 0 0 1      0 0      0 0 1 1

 0 0 0                 0 0 0 1

                          0 0 0 0

PROGRAM CODE: 

	#include<stdio.h>
	#include<conio.h>
	#include<stdlib.h>
	int main()
	{
	int *a[10];
	int i,j,r,c,flag=0;
	printf("Enter the row size: ");
	scanf("%d",&r);
	printf("Enter the coulumn size: ");
	scanf("%d",&c);
	for(i=0;i<r;i++)
	{
	a[i]=(int *)malloc(c*sizeof(int));
	}
	if(r==c)
	{
	printf("Enter the square Matrix: ");
	for(i=0;i<r;i++)
	{
	for(j=0;j<c;j++)
	{
	scanf("%d",*(a+i)+j);
	}
	}
	printf("The square Matrix is : \n");
	for(i=0;i<r;i++)
	{
	for(j=0;j<c;j++)
	{
	printf( "\t%d",*(*(a+i)+j));
	}
	printf("\n");
	}
	for(i=0;i<r;i++)
	{
	for(j=0;j<c;j++)
	{
	if(i<j)
	{
	if(*(a[i]+j)==0)
	{
	flag=1;
	}
	}
	if(i=j)
	{
	if(*(a[i]+j)!=0)
	{
	flag=1;
	}
	}
	if(i>j)
	{
	if(*(a[i]+j)!=0)
	{
	flag=1;
	}
	}
	}
	}
	if(flag==0)
	{
	printf("The matrix is upper triangular");
	}
	else
	{
	printf("The matrix is not upper triangular");
	}
	}
	else
	{
	printf("Not a Square Matrix");
	}
	getch();
	return 0;
	}

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