UPDATE 17:19: it seems that the program I implemented today uses a kind of Bubble Sort algorithm, give it a try, it’s quite interesting!
After 3 long days studying C, I think I’ve assimilated a good knowledge base for the incoming semester.
So there is a tiny C program that sorts the elements of a given integer array, using pointers:
Download the source code (well commented)
#include <stdio.h> void sortArray(int *firstElement, int *lastElement); void swapArrayElements(int *firstElement, int *secondElement); void printArray(int array[], int arraySize); void sortArray(int *firstElement, int *lastElement){ int *currentElement = firstElement; while (firstElement != lastElement){ while(currentElement != lastElement){ if(*currentElement < *firstElement){ swapArrayElements(currentElement,firstElement); } currentElement++; } firstElement++; currentElement = firstElement; } } void swapArrayElements(int *firstElement, int *secondElement){ int tmp; tmp = *firstElement; *firstElement = *secondElement; *secondElement = tmp; } void printArray(int array[], int arraySize){ int counter = 0; while(counter<arraySize){ printf("%d\n",array[counter]); counter++; } } int main (int argc, char *argv[]){ int array[] = {2929393,1,23239,-66,15,4,3,0,112,45,3,1000,19}; int arraySize = sizeof(array)/sizeof(array[0]); int *firstElement = &array[0]; int *lastElement = firstElement + arraySize; printf("-------------------------------------------------\n"); printf("Elements of the array:\n"); printf("-------------------------------------------------\n"); printArray(array,arraySize); printf("-------------------------------------------------\n"); sortArray(firstElement,lastElement); printf("Elements sorted:\n"); printf("-------------------------------------------------\n"); printArray(array,arraySize); printf("-------------------------------------------------\n"); } |
A better program should ask the user to input the array elements, and a better algorithm should not scan every array element n times, where n is the number of the elements.
But I wrote it just for fun and for learning C pointers. I will learn to do better in the Data Structures and Algorithms course in the next semester 
since you’re rebuilding the php code of the whole blog you could try to incorporate also a nice code formatter for code snippets ^^ and syntax highlighting, just in case you don’t know what to do ^^
How about this, benji?
you’re the best ^^