/*Write a function int replace_odd (int A[][COL], int num_rows, int num_cols) 
that finds and returns the amount of the odd elements among the elements of the array 
A AND replaces all odd numbers with 0. Write a program that randomly generates 
3 two-dimensional arrays of size 3X4 (3 rows and 4 columns) each 
(range of the numbers between 0 and 10). The program prints randomly generated arrays. 
The program calls function replace_odd for each array, 
prints the number of odds in each array and prints an array after replacement was done. 
*/

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define ROW 3
#define COL 4
int replace_odd(int A[][COL], int num_rows, int num_cols);
void print_array(int A[][COL], int num_row, int num_col); 
void make_random_array2d(int A[][COL], int num_row, int num_col, int min, int max);

int main(){
	srand(time(NULL));
	int A[ROW][COL],i;
	for(i=0;i<3;i++){
		make_random_array2d(A,ROW, COL, 0,10);
		printf("array %d BEFORE REPLACE \n",i+1);
		print_array(A, ROW, COL);
		printf("number of odds %d\n",replace_odd(A, ROW, COL));
		printf("array %d  AFTER \n",i+1);
		print_array(A, ROW, COL);
	}
	return 0;
}	

int replace_odd(int A[][COL], int num_rows, int num_cols){
	int i,j, count=0;
	for (i = 0; i < num_rows; i++){
        	for (j = 0; j < num_cols; j++){
			if(A[i][j]%2!=0){
				A[i][j]=0;
				count++;
			}
		}
	}
	return count;
}



void print_array(int A[][COL], int num_row, int num_col){


    int i; /* row counter */
    int j; /* column counter */

    for (i = 0; i < num_row; i++){
        for (j = 0; j < num_col; j++){
            printf("%d ", A[i][j]); 
        }
        printf("\n"); 
    } 


} 


void make_random_array2d(int A[][COL], int num_row, int num_col, int min, int max){
	int i; /* row counter */
    	int j; /* column counter */

    	for (i = 0; i < num_row; i++){
        	for (j = 0; j < num_col; j++){
			A[i][j]=min+rand()%(max-min+1);
		}
	}

}