C Program to check matrix is magic square or not.

Write a c program to check whether the given matrix is a  magic square matrix or not
A matrix is magic square matrix, if all rows sum, columns sum and diagonals sum are equal.
Example:
8   1   6
3   5   7
4   9   2
is the magic square matrix. As you can see numbers in first row add up to 15 (8 + 1 + 6), so do the numbers of 2nd row 3 + 5 + 7. Also the number in the last row 4 + 9 + 2. Similarly, the columns all add up to the same number 15. Hence, this matrix is a magic square matrix.
Read more about C Programming Language . and read the C Programming Language (2nd Edition). by K and R.

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#include <stdio.h>
#include<conio.h>
void main()
{
    int A[10][10];
    int i, j=0, M,N;
    int size;
    int sum,sum1,sum2;
    int flag=0;
    
    clrscr();
    
    printf("Enter the order of the matrix:n");
    scanf("%d %d", &M, &N);
    if(M==N){
        printf("Enter the elements of matrix n");
        for(i=0; i<M; i++)
        {
            for(j=0; j<N; j++)
            {
                scanf("%d",&A[i][j]);
            }
        }
        
        printf("nnMATRIX  isn");
        for(i=0; i<M; i++)
        {
            for(j=0; j<N; j++)
            {
                printf("%3dt",A[i][j]);
            }
            printf("n");
        }
        
        
        sum=0;
        for(i=0;i<M;i++)
        for(j=0;j<N;j++)
        {
            if(i==j)
            sum=sum+A[i][j];
        }
        
        
        for(i=0;i<M;i++)
        {
            sum1=0;
            {
                for(j=0;j<N;j++)
                sum1=sum1+A[i][j];
            }
            if(sum==sum1)
            flag=1;
            else
            {
                flag=0;
                break;
            }
        }
        
        for(i=0;i<M;i++)
        {
            sum2=0;
            for(j=0;j<N;j++)
            {
                sum2=sum2+A[j][i];
            }
            if(sum==sum2)
            flag=1;
            else
            {
                flag=0;
                break;
            }
        }
        
        if(flag==1)
        printf("nn The given Matrix is a Magic square matrixnn");
        else
        printf("The given Matrix is NOT a  Magic square matrixnn");
    } else
    {
        printf("nnPlease enter the square matrix order(m=n)nn");
    }
}
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2 comments on “C Program to check matrix is magic square or not.

    • Sandeepa Nadahalli says:

      Hi Shweta,

      Adding flowchart to the blog post may take a while as I am working on post by post. Please get in touch over email or Facebook and I will provide the flow chart. Also, I will be happy to explain how this program works.

      Happy coding!

      Reply

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