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public class TestBinSearch {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int a[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
System.out.println(binSearch(a, 0, a.length - 1, 100));
}
// ¶þ·Ö²éÕҵݹéʵÏÖ
public static int binSearch(int a[], int start, int end, int key) {
int mid = (end - start) / 2 + start;
if (a[mid] == key) {
return mid;
}
if (start >= end) {
return -1;
} else if (a[mid] < key) {
return binSearch(a, mid + 1,&nbs
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