Homework 2_2.c

  1 #include <stdio.h>
  2 #define SIZE 5
  3
  4 void loadArray(int array[], int n);
  5 void printArray(int array[], int n);
  6 void sortArray(int array[], int n);
  7 int searchArray(int array[], int n);
  8 void addToArray(int array[], int n, int val);
  9 void multiplyArray(int array[], int n, int val);
 10
 11 int main(void)
 12 {
 13          int n = SIZE;
 14          int array[n];
 15          int menu_option;
 16          int val;
 17
 18          loadArray(array, n);
 19          printf("What would you like to do?\n");
 20          printf("1) Print the array\n");
 21          printf("2) Sort the array\n");
 22          printf("3) Search the array\n");
 23          printf("4) Add to the array\n");
 24          printf("5) Multiply the array\n");
 25          printf("0) Exit\n");
 26          scanf("%d", &menu_option);
 27
 28          while (menu_option != 0)
 29                 {
 30                         switch (menu_option)
 31                                 {
 32                                         case 1:
 33                                         printArray(array, n);
 34                                         break;
 35
 36                                         case 2:
 37                                         sortArray(array, n);
 38                                         break;
 39
 40                                         case 3:
 41                                         searchArray(array, n);
 42                                         break;
 43
 44                                         case 4:
 45                                         addToArray(array, n, val);
 46                                         break;
 47
 48                                         case 5:
 49                                         multiplyArray(array, n, val);
 50                                         break;
 51
 52                                         case '\n':
 53                                         case '\t':
 54                                         case ' ':
 55                                         case default:
 56                                         printf("Please enter 1, 2, 3, 4, or 5; or 0 to exit: ");
 57                                         break;
 58
 59 }
 60
 61 void loadArray(int array[], int n)
 62 {
 63          int n_one;
 64          int i = 0;      //counter variable
 65          for(i=0; i<n; i++)
 66                  {
 67                          printf("Enter value %d: ", &i);
 68                          scanf("%d", &array[i]);
 69                  }
 70 }
 71
 72 void printArray(int array[], int n)
 73 {
 74
 75          int i = 0;
 76          for (i = 0; i < n; i++)
 77                   {
 78                           printf("Array[%d] = %d\n", i, array[i]);
 79                                   }
 80 }
 81
 82 void sortArray(int array[], int n)
 83 {
 84         int pass;               //passes counter
 85         int i;                  //comparison counter
 86         int hold;               //temporary location used to swap array elements
 87         for (pass = 1; pass < n; pass++)
 88                 {
 89                         for (i = 0; i < (n-1); i++)
 90                                 {
 91                                         if (array[i] > array[i + 1])
 92                                                 {
 93                                                         hold = array[i];
 94                                                         array[i] = array[i + 1];
 95                                                         array[i + 1] = hold;
 96                                                 }
 97                                 }
 98                 }
 99         //output the array in a sorted state
100         for(i = 0; i < n; i++)
101                 {
102                         printf("Array[%d] = %d\n", i, array[i]);
103                 }
104 }
105
106 /*int searchArray(int array[], int n, int val)
107 {
108         //value to be located in array
109         int element;    //variable to hold location of searchKey or -1
110
111         printf("Enter a number to search for: ");
112         scanf("%d", val );
113
114         //look for searchKey in array
115         element = searchArray;
116 }
117 */
118
119 /*void addToArray(int array[], int n, int val)
120 {
121
122         int i;
123
124         printf("Enter a number to add to each element of the array: ");
125         scanf("%d", val);
126         for(i = 0; i < n; i++)
127                 {
128                         array[i] = i + val;
129                 }
130         printf("Modified array:\n");
131         for (i = 0; i < n; i++)
132                 {
133                         printf("Array[%d] = %d\n", i, array[i]);
134                 }
135 }       */