--------------------------------------------------- | Date: 2003-03-27 23:45:38 | | Filename: bubble.c | | Author: detour@metalshell.com | | | | http://www.metalshell.com/ | --------------------------------------------------- /* bubble.c by detour@metalshell.com * * Use the very simple and slow bubble sort method to * sort an array of integers. * * http://www.metalshell.com/ * */ #include <stdlib.h> #include <stdio.h> #include <time.h> #define ARRAY_SIZE 20 void print_array(int *array) { int x; for(x = 0; x < ARRAY_SIZE; x++) { if(x != ARRAY_SIZE-1) fprintf(stdout, "%d, ", array[x]); else fprintf(stdout, "%d\n", array[x]); } } int main() { int iarray[ARRAY_SIZE]; int x, y, holder; // Seed rand() srand((unsigned int)time(NULL)); for(x = 0; x < ARRAY_SIZE; x++) iarray[x] = (int)(rand() % 100); fprintf(stdout, "Before Sort\n---------------\n"); print_array(iarray); // Bubble sort method. for(x = 0; x < ARRAY_SIZE; x++) for(y = 0; y < ARRAY_SIZE-1; y++) if(iarray[y] > iarray[y+1]) { holder = iarray[y+1]; iarray[y+1] = iarray[y]; iarray[y] = holder; } fprintf(stdout, "\nAfter Sort\n---------------\n"); print_array(iarray); }