diff options
Diffstat (limited to 'OLD/csci1913/Java/lab7_strap012.java')
-rw-r--r-- | OLD/csci1913/Java/lab7_strap012.java | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/OLD/csci1913/Java/lab7_strap012.java b/OLD/csci1913/Java/lab7_strap012.java deleted file mode 100644 index cfb89ed..0000000 --- a/OLD/csci1913/Java/lab7_strap012.java +++ /dev/null @@ -1,62 +0,0 @@ -class BinaryVsLinear -{ - - private static int linearSearch(int key, int[] keys) - { - int searchCount = 0; - for (int i=0; i<keys.length; i+=1) { - searchCount += 1; - if (keys[i]==key) { - return searchCount; - } - } return -1; - } - - - private static int binarySearch(int key, int[] keys) - { - int left=0; int right=(keys.length-1); int mid=0; - int searchCount=0; - while (true) { - if (left>right) { - mid=-1; - break; - } else { - mid=(left+right)/2; - searchCount += 2; - if (key<keys[mid]) { - right=mid-1; - } - else if (key>keys[mid]) { - left=mid+1; - } else { - break; - } - } - } return searchCount; - } - - public static void main(String[] args) - { - for (int length = 1; length <= 30; length += 1) - { - int[] array = new int[length]; - for (int index = 0; index < length; index += 1) - { - array[index] = index; - } - - double linearTotal = 0.0; - double binaryTotal = 0.0; - for (int element = 0; element < length; element += 1) - { - linearTotal += linearSearch(element, array); - binaryTotal += binarySearch(element, array); - } - - double linearAverage = linearTotal / length; - double binaryAverage = binaryTotal / length; - System.out.println(length + " " + linearAverage + " " + binaryAverage); - } - } -} |