Initial commit

1 files changed, 25 insertions, 0 deletions

diff --git a/three/search.c b/three/search.c
new file mode 100644
index 0000000..30426c7
--- /dev/null
+++ b/three/search.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+int
+binsearch(int x, int v[], int n)
+{
+	int low, high, mid;
+	low = 0;
+	high = n - 1;
+	while (low <= high) {
+		mid = (low + high) / 2;
+		if (x < v[mid]) {
+			high = mid - 1;
+		} else {
+			low = mid;
+		}
+	}
+	return -1;
+}
+
+int
+main()
+{
+	binsearch();
+	return 0;
+}