In last lab, you were asked to put 15 numbers in an array A[15]. Everyone come t

Question

In last lab, you were asked to put 15 numbers in an array A[15]. Everyone come to class did this.

(1) Write a program that test if an array A has the property of a sorted array. This means that this array contains the number that from small to large.

       For instance, 1,4,6,7,9. is a sorted array. 2,3,-1,6,4 is not sorted. Print Yes or No for your findings. This problem is a little challenging.

(2) Write a program that can assign values to a 5x4 array meaning that A[5][4] should be filled from the keyboard input.

Explanation / Answer

#include<stdio.h>

#include<stdlib.h>

2.

#include <stdio.h>

#include <stdlib.h>

int main()

{

    int r = 5, c = 4, i, j, count;

    int *arr[r];

    for (i=0; i<r; i++)

         arr[i] = (int *)malloc(c * sizeof(int));

    // Note that arr[i][j] is same as *(*(arr+i)+j)

    count = 0;

    for (i = 0; i < r; i++)

      for (j = 0; j < c; j++)

         arr[i][j] = ++count; // Or *(*(arr+i)+j) = ++count

    for (i = 0; i < r; i++)

      for (j = 0; j < c; j++)

         printf("%d ", arr[i][j]);

    /* Code for further processing and free the

      dynamically allocated memory */

   return 0;

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