Help me with this c program(arrays)?

Write a program to read two matrices of real numbers (up to 10 x 10 in size) and print out the number of rows which are identical between the two matrices and the number of columns which are identical. The input consists of two integers, r and c, specifying the number of rows and columns in the matrices (they have the same dimensions), followed by the values of matrix1 (r rows of c real numbers) followed by the values of matrix2 (r rows of c real numbers). Your program must consist of a main program and the following two functions.


int count_equal_rows(int r, int c, double matrix1[][10], double matrix2[]][10])


int count_equal_colums(int r, int c, double matrix1[][10], double matrix2[]][10])





my program:





int count_equal_rows(int r, int c, double matrix1[][10], double matrix2[][10])


{


int match=0,i,j,row,col;





scanf("%d%d%lf%lf",%26amp;row,%26amp;col,%26amp;matrix1[...





for(i=0;i%26lt;row;++i)


{





if (matrix1[i][j]= matrix2[i][j])


match +=1;


}


return(match);


}

Help me with this c program(arrays)?
Here it is dear:





#include%26lt;stdio.h%26gt;





int count_rows(int r,int c,double a[][10],double b[][10])


{


int dup_rows,rowmatch,i,j;


rowmatch=dup_rows=0;


for(i=0;i%26lt;r;i++)


{


rowmatch=0;


for(j=0;j%26lt;c;j++)


{


if(a[i][j]==b[i][j])


{


rowmatch++;


}


}


if(rowmatch==c)


{


dup_rows++;


}


}


return dup_rows;


}


int count_cols(int r,int c,double a[][10],double b[][10])


{


int dup_cols,colmatch,i,j;


colmatch=dup_cols=0;


for(i=0;i%26lt;c;i++)


{


colmatch=0;


for(j=0;j%26lt;r;j++)


{


if(a[j][i]==b[j][i])


{


colmatch++;


}


}


if(colmatch==r)


{


dup_cols++;


}


}


return dup_cols;


}





void main()


{


double a[10][10],b[10][10];


int i,j,r,c,rows,cols;


printf("\n Enter rows %26amp; cols : ");


scanf("%d%d",%26amp;r,%26amp;c);


printf("\n Enter the elements : ");


for(i=0;i%26lt;r;i++)


{


for(j=0;j%26lt;c;j++)


{


scanf("%lf",%26amp;a[i][j]);


}


}


printf("\n Enter the elements : ");


for(i=0;i%26lt;r;i++)


{


for(j=0;j%26lt;c;j++)


{


scanf("%lf",%26amp;b[i][j]);


}


}


rows=count_rows(r,c,a,b);


cols=count_cols(r,c,a,b);


printf("\n Duplicate Rows are : %d .",rows);


printf("\n Duplicate Columns are : %d .",cols);


}











OM NAMAH SHIVAY
Reply:The scanf should be placed in the main program, that way you only need to read the matrices once to perform both tests.





The main program should be like this:


(1) Declare 10x10 arrays


(2) Read dimensions


(3) Read elements of matrix1


(4) Read elements of matrix2


(5) Invoke count_equal_rows


(6) Invoke count_equal_columns


(7) Display results





You need to test each pair of elements in the row to see in the entire row is equal. The algorithm, using a pseudo-language, would be:





is-this-row-equal returns boolean with


_ parameter rows as integer (1..10)


_ parameter cols as integer (1..10)


_ parameter i as integer (0 .. rows-1)


_ parameter matrix1 as array (rows x cols) of double


_ parameter matrix2 as array (rows x cols) of double


begin


_ variable are-equal as boolean %26lt;- true


_ repeat j as integer (0 .. cols - 1) do


___ if matrix1@(i,j) neq matrix2@(i,j) then are-equal %26lt;- false


_ done


_ return are-equal


end





It shouldn't be difficult for you to write that in C to use inside your match-counting loop.





(There, I think I managed to have some similarities to shell script, fortran, pascal, vhdl, and register transfer notation at the very least)
Reply:man man man .. where is the main function, you should read the two matrixes in the main function not inside the count functions ..





void main()


{


doucble mat1[][], mat2[][];


int r, c;


printf("Enter number of rows: ");


scanf(%d, %26amp;r);


printf("Enter number of columns: ");


scanf(%d, %26amp;c);





double mat1[r][c], mat2[r][c];





int row_match = count_equal_rows(r, c, mat1, mat2);


int col_match = count_equal_columns(r, c, mat1, mat2);


}








I think this is enough .. sorrry, but for your advantage you should write the remaining code .. it is easy .. you can do it man ..
Reply:Well, first of all you want a double ==. This is a common mistake. You have = (matrix 1 v matrix 2) which assigns the value. I particularly dislike that part of C, it's prone to many errors.





Second you'll want to scan through the whole row and only return a count if the whole row matches.