Revision 2:3c65515d63e3, committed 2017-08-05

Comitter:

kellybs1

Date:

Sat Aug 05 13:06:18 2017 +0000

Parent:

1:34c1fcb8ea5a

Commit message:

Playing around with mDot

Changed in this revision

--- a/main.cpp	Tue Jul 07 14:09:33 2015 +0000
+++ b/main.cpp	Sat Aug 05 13:06:18 2017 +0000
@@ -1,34 +1,50 @@
 /*************************************
- * This simple example program blinks
- * a LED and prints a message out the
- * USB debug port.
+ * This simple example program
+ * randomly generates a small array
+ * of integers and then sorts them,
+ * displaying at the end of each
+ * sort step
  ************************************/
 
 #include "mbed.h"
 
-// Uncomment this line if using a full sized UDK2.0 instead of a Micro UDK
-// #define UDK2 1
-
-#ifdef UDK2
-DigitalOut led(LED1);
-#else
-DigitalOut led(XBEE_RSSI);
-#endif
-
-Ticker tick;
-
-// callback function to change LED state
-void blink() {
-    led = !led;
+void swap(int nums [], int indexA, int indexB)
+{
+    //throw value in a temp value
+    int temp = nums[indexA];          
+    //move second into first
+    nums[indexA] = nums[indexB];          
+    //move temp into second
+    nums[indexB] = temp;         
 }
 
-int main() {
-    // configure the Ticker to blink the LED on 500ms interval
-    tick.attach(&blink, 0.5);
+int main()
+{   
+    int loopEnd = 8;
+    int nums [loopEnd];
     
-    // print the message on 2s interval
     while (true) {
-        printf("Hello world!\r\n");
-        wait(2);
+        printf("\nHello world! I am an mDot sorting random numbers\n");
+        //fill array with pseudorandom numbers
+        for (int i = 0; i < loopEnd; i++)
+            nums[i] = rand() % 100;      
+           
+        //Bubble sort! 
+        for (int i = 0; i < loopEnd; i++) //check every value
+        {
+            for (int j = i; j < loopEnd; j++) //against every value after it              
+            {
+                if (nums[i] > nums[j] && i != j) //swap if unsorted and not the same element
+                {
+                    swap(nums, i, j);
+                }                        
+            }
+            //output this step
+            for(int i = 0; i < loopEnd; i++)
+                printf( "%d ", nums[i]);
+            printf("\n");  
+            wait(1);
+        }
+        wait(3);
     }
 }
\ No newline at end of file