1 files changed, 13 insertions, 0 deletions
diff --git a/progs/a132.py b/progs/a132.py
new file mode 100644
index 0000000..d179c8a
--- /dev/null
+++ b/progs/a132.py
@@ -0,0 +1,13 @@
+def find_first_occurrence(A, x):
+    (left, right) = (0, len(A) - 1)
+    result = -1
+    while left <= right:
+        mid = (left + right) // 2
+        if x == A[mid]:
+            result = mid
+            right = mid - 1
+        elif x < A[mid]:
+            right = mid - 1
+        else:
+            left = mid + 1
+    return result
+\ No newline at end of file