1// Aim: Program to perform Menu Driven Array operations (Insertion, Deletion).
2#include <stdio.h>
3void main() {
4  int n, i, x, pos, arr[50], ch;
5  printf("Enter the size of the array :");
6  scanf("%d", &n);
7  printf("Enter the elements of the array :");
8  for (i = 0; i < n; i++) {
9    scanf("%d", &arr[i]);
10  }
11  while (ch != 6) {
12    printf("\nCHOOSE THE OPERATION\n1.Insert an element at the "
13           "beginning\n2.Insert an element at the end\n3.Insert an element at "
14           "a given position\n4.Delete a given element\n5.Display the "
15           "array\n6.EXIT");
16    printf("\nEnter your choice :");
17    scanf("%d", &ch);
18    switch (ch) {
19    case 1:
20      printf("Enter the element to be inserted :");
21      scanf("%d", &x);
22      arr[n] = 0;
23      for (i = n; i > 0; i--) {
24        arr[i] = arr[i - 1];
25      }
26      arr[0] = x;
27      n++;
28      printf("The array after insertion is :");
29      for (i = 0; i < n; i++) {
30        printf("%d\t", arr[i]);
31      }
32      break;
33
34    case 2:
35      printf("Enter the element to be inserted :");
36      scanf("%d", &x);
37      arr[n] = x;
38      n++;
39      printf("The array after insertion is :");
40      for (i = 0; i < n; i++) {
41        printf("%d\t", arr[i]);
42      }
43      break;
44
45    case 3:
46      printf("Enter the element to be inserted :");
47      scanf("%d", &x);
48      printf("Enter the position at which the element is to be inserted :");
49      scanf("%d", &pos);
50      arr[n] = 0;
51      for (i = n; i > pos; i--) {
52        arr[i] = arr[i - 1];
53      }
54      arr[pos] = x;
55      n++;
56      printf("The array after insertion is :");
57      for (i = 0; i < n; i++) {
58        printf("%d\t", arr[i]);
59      }
60      break;
61
62    case 4:
63      printf("Enter the element to be deleted :");
64      scanf("%d", &x);
65      for (i = 0; i < n; i++) {
66        if (arr[i] == x) {
67          pos = i;
68          printf("Enter the element to be inserted :");
69          scanf("%d", &x);
70          printf("Enter the position at which the element is to be inserted :");
71          scanf("%d", &pos);
72          arr[n] = 0;
73          for (i = n; i > pos; i--) {
74            arr[i] = arr[i - 1];
75          }
76          arr[pos] = x;
77          n++;
78          printf("The array after insertion is :");
79          for (i = 0; i < n; i++) {
80            printf("%d\t", arr[i]);
81          }
82          break;
83          break;
84        }
85      }
86      for (i = pos; i < n; i++) {
87        arr[i] = arr[i + 1];
88      }
89
90      n--;
91      printf("The array after deletion is :");
92      for (i = 0; i < n; i++) {
93        printf("%d\t", arr[i]);
94      }
95      break;
96
97    case 5:
98      printf("The array is :");
99      for (i = 0; i < n; i++) {
100        printf("%d\t", arr[i]);
101      }
102      break;
103
104    case 6:
105      printf("thank you");
106      break;
107    }
108  }
109}
110