| 1 | #include <stdio.h> |
| 2 | #include <stdbool.h> |
| 3 | |
| 4 | void swap(int* v1, int* v2) { |
| 5 | int tempValue = *v1; |
| 6 | *v1 = *v2; |
| 7 | *v2 = tempValue; |
| 8 | } |
| 9 | |
| 10 | /** Display the array on standard output. */ |
| 11 | void displayArray(int* array, int count) { |
| 12 | for (int tabIndex = 0; tabIndex < count; ++tabIndex) { |
| 13 | printf("array[%d] = %d\n", tabIndex, *(array++)); |
| 14 | } |
| 15 | } |
| 16 | |
| 17 | /** Swap every out-of-order cells at most once. |
| 18 | * |
| 19 | * @return true if a swap was performed, false if the whole array is ordered. |
| 20 | */ |
| 21 | bool sortFirst(int* array, int length) { |
| 22 | bool swappedValues = false; |
| 23 | int* cursor = array; |
| 24 | |
| 25 | while (--length) { |
| 26 | if (*cursor > *(cursor + 1)) { |
| 27 | swap(cursor, cursor + 1); |
| 28 | swappedValues = true; |
| 29 | } |
| 30 | |
| 31 | ++cursor; |
| 32 | } |
| 33 | |
| 34 | return swappedValues; |
| 35 | } |
| 36 | |
| 37 | void sortArray(int* array, int length) { |
| 38 | while (sortFirst(array, length)); |
| 39 | } |
| 40 | |
| 41 | /** Fill the array with user input. */ |
| 42 | void promptArray(int* array, int length) { |
| 43 | for (int tabIndex = 0; tabIndex < length; ++tabIndex) { |
| 44 | printf("Enter value for index %d:\n", tabIndex); |
| 45 | scanf("%d", array++); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | int main() { |
| 50 | int arr[10]; |
| 51 | promptArray(arr, 10); |
| 52 | sortArray(arr, 10); |
| 53 | displayArray(arr, 10); |
| 54 | } |