Deliverables: TwoD.h - includes the TwoD declaration and prototypes for the vari

Question

Deliverables: TwoD.h - includes the TwoD declaration and prototypes for the various functions TwoD.c - includes the definitions for the function prototypes in TwoD.h driver.c - a driver to fully test the functionality of all the functions defined in TwoD.c Where to start? The TwoD.h file must contain the following: //make the columns and rows have a size of 50 to ensure enough memory #define MAX_SIZE 50 typedef struct { int rows, cols; int element[MAX_SIZE][MAX_SIZE]; }TwoD; //function prototypes void columnSum( TwoD, int [ ], int ); //computes the sum of values in each column of the matrix, storing each value in the integer array void rowSum( TwoD, int [ ], int ); //computes the sum of values in each row of the matrix, storing each value in the integer array TwoD twoDAdd( TwoD, TwoD ); //returns the sum of two matrices TwoD twoDSubtract( TwoD, TwoD ); //returns the difference of two matrices

Explanation / Answer

use command gcc TwoD.c driver.c to compiler

// TwoD.h

#define MAX_SIZE 50
typedef struct { int rows, cols; int element[MAX_SIZE][MAX_SIZE]; }TwoD; //function prototypes
void columnSum( TwoD, int [ ], int ); //computes the sum of values in each column of the matrix, storing each value in the integer array
void rowSum( TwoD, int [ ], int ); //computes the sum of values in each row of the matrix, storing each value in the integer array
TwoD twoDAdd( TwoD, TwoD ); //returns the sum of two matrices
TwoD twoDSubtract( TwoD, TwoD ); //returns the difference of two matrices

//TwoD.c

#include<stdio.h>
#include "TwoD.h"

void columnSum( TwoD td, int a[], int cols) {
        int j,i;
        for ( j = 0 ; j < td.cols ; j++ )
                a[j] = 0;
        for ( i = 0; i < td.cols; i++)
                for ( j = 0 ; j < td.rows ;j++)
                        a[i] = a[i] +   td.element[j][i];
}

void    rowSum( TwoD td, int a[], int rows) {
        int j,i;
        for ( j = 0 ; j < td.rows ; j++ )
                a[j] = 0;
        for ( i = 0; i < td.rows; i++)
                for ( j = 0 ; j < td.cols ;j++)
                        a[i] = a[i] +   td.element[i][j];
}
TwoD twoDAdd( TwoD a, TwoD b){
        int i,j;
        TwoD res ;
        res.rows = a.rows;
        res.cols = a.cols;
        for ( i = 0; i < a.rows; i++)
                for ( j = 0 ; j < a.cols ;j++)
                        res.element[i][j] = a.element[i][j] + b.element[i][j];
        return res;
}

TwoD twoDSubtract( TwoD a, TwoD b){
        int i,j;
        TwoD res ;
        res.rows = a.rows;
        res.cols = a.cols;
        for ( i = 0; i < a.rows; i++)
                for ( j = 0 ; j < a.cols ;j++)
                        res.element[i][j] = a.element[i][j] - b.element[i][j];
        return res;
}


// driver.c

#include<stdio.h>
#include "TwoD.h"

void print2darray(TwoD a);
void print1dArray(int a[],int size);
int main(){
        int rows,cols;
        printf("enter row size and col size ");
        scanf("%d%d",&rows,&cols);
        printf("please enter the element of first array , (not more than %d * %d ",rows,cols);
        TwoD first,second;
        int i,j;
        first.rows = rows;
        first.cols = cols;
        for ( i = 0 ; i < rows;i++)
                for ( j = 0; j <cols;j++)
                        scanf("%d",&(first.element[i][j]));
        print2darray(first);
        printf("please enter the element of second array , (not more than %d * %d ",rows,cols);
        second.rows = rows;
        second.cols = cols;
        for ( i = 0 ; i < rows;i++)
                for ( j = 0; j <cols;j++)
                        scanf("%d",&(second.element[i][j]));
        print2darray(second);
        int sumcols[cols];
        int sumrows[rows];
        columnSum(first,sumcols,cols);
        printf("column ");
        print1dArray(sumcols,cols);
        rowSum(first,sumrows,rows);
        printf("ros sum ");
        print1dArray(sumrows,rows);
        TwoD res = twoDAdd(first,second);
        printf("result sum ");
        print2darray(res);
        TwoD res2 = twoDSubtract(first,second);
        printf("result sub ");
        print2darray(res2);
}

void print2darray(TwoD a){
        int i,j;
        for ( i = 0 ; i < a.rows;i++){
                for ( j = 0 ; j < a.cols;j++)
                        printf("%d ",a.element[i][j]);
                printf(" ");
        }
}

void print1dArray(int a[],int size){
        int il;
        for (il = 0 ; il < size;il++)
                printf("%d ",a[il]);
        printf(" ");
}

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