#include <stdio.h>
  2 #include <stdlib.h>
  3 /* function prototypes */
  4 int printMenu();
  5 void printArray ( int [ ], int );
  6 int addInt ( int [ ], int, int);
  7 int delINT ( int [ ], int, int);
  8 int exists ( int [ ], int, int);
  9 void insertSort ( int [ ], int );
10
11 /* main begins program execution  */
12 int main ( void )
13 {
14
15         int *array = NULL;
16         unsigned int size = 0;
17         int num, opt, pos;
18          
19         /* START DO STATEMENT */
20         do {  opt = printMenu();
21                
22                 /* begin switch statement */
23                 switch (opt) {
24                   /* The user selected to add an intenger */
25                   case 1:  /* Prompts for the intenger and reads it */
26                            printf("\nPlease enter the intenger you wish to add to the array\n");
27                            scanf("%d",&num);
28
29                            /*  Add number to the array */
30                            /* Checks if the operation had success */
31                            if ((array = addInt(array, num, size)) != NULL )
32                            size++;
33                            else
34                              printf("Can't add %d to array",num);
35
36                            printArray(array, size);
37
38                            break;
39  
40
41
42         }
43         }  /* END DO */
44         while ( opt != 0 );
45
46
47
48 return 0;
49 }
50
51 /* function to print the menu */
52 int printMenu (void)
53 {
54 int opt;
55
56 printf("Enter 1 to add an intenger\n");
57 printf("Enter 2 to delete an intenger\n");
58 printf("Enter 3 Print Array\n");
59 printf("Enter 0 - Exit\n");
60 scanf("%d",&opt);
61 return opt;
62 }
63
64 /* function to print the array */
65 void printArray ( int array [ ], int size )
66 {
67
68 int i;
69
70 /* Check if array has number */
71 if (size)
72 {
73   printf("Numbers in array:");
74
75   for ( i = 0; i < size; i++ )
76   printf("%d\n", array [ i ] );
77 }
78 else
79   printf("Array is empty!");
80
81   printf("\n\n");
82 }
83
84 /* function to add in to array */
85
86 int addInt ( int array [ ], int num, int size )
87 {
88    int *temp = NULL;
89    int i;
90
91    /* Copies the original array to the new array */
92
93    for ( i = 0; i < size - 1; i++ )
94      temp [ i ] = array [ i ];
95
96     /*  Inserts the new element on the top of the array */
97
98     temp [ size - 1 ] = num;
99
100     /* returns the temp array */
101
102     return temp;
103 }