From 8ae15bf2a54fbe83f46756947cf7e366f1482277 Mon Sep 17 00:00:00 2001
From: ASPP Student <student@localhost>
Date: Tue, 23 Sep 2025 15:21:50 +0300
Subject: [PATCH 1/3] find local maxima

---
 hands_on/local_maxima/local_maxima.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/hands_on/local_maxima/local_maxima.py b/hands_on/local_maxima/local_maxima.py
index cfd0a9e..37548e9 100644
--- a/hands_on/local_maxima/local_maxima.py
+++ b/hands_on/local_maxima/local_maxima.py
@@ -7,9 +7,13 @@ def find_maxima(x):
     Output:
     idx -- list of indices of the local maxima in x
     """
-    return []
+    idx = []
+    for i in range(1, len(x)-1):
+        if (x[i] > x[i-1]) & (x[i] > x[i+1]):
+           idx.append(i)
+    return idx
 
 
 if __name__ == "__main__":
-    x = [1, 2, 3]
+    x = [1, 3, -2, 0, 2, 1]
     print(find_maxima(x))
-- 
2.39.5


From 49a768595c10fdaff6d0860756f55eea6cce6a35 Mon Sep 17 00:00:00 2001
From: ASPP Student <student@localhost>
Date: Tue, 23 Sep 2025 16:10:10 +0300
Subject: [PATCH 2/3] add test functions with wrong results to see how it
 breaks

---
 hands_on/first/test_first.py | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/hands_on/first/test_first.py b/hands_on/first/test_first.py
index 5ac7354..682eaa6 100644
--- a/hands_on/first/test_first.py
+++ b/hands_on/first/test_first.py
@@ -1,6 +1,14 @@
+from first import times_3
+
 def test_times_3_integer():
-    pass
+    value = 5
+    expected = 150
+    result = times_3(value)
+    assert result == expected
 
 
 def test_times_3_string():
-    pass
+    value = 'yupi'
+    expected = 'yupiyupiyupiyu'
+    result = times_3(value)
+    assert result == expected
-- 
2.39.5


From 17d41ce1e0d953c854a789f182bbc9bfc8805465 Mon Sep 17 00:00:00 2001
From: ASPP Student <student@localhost>
Date: Tue, 23 Sep 2025 16:41:31 +0300
Subject: [PATCH 3/3] fix the code to pass the first three tests

---
 hands_on/local_maxima_part2/local_maxima.py | 23 ++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/hands_on/local_maxima_part2/local_maxima.py b/hands_on/local_maxima_part2/local_maxima.py
index db89ba3..b2af2b8 100644
--- a/hands_on/local_maxima_part2/local_maxima.py
+++ b/hands_on/local_maxima_part2/local_maxima.py
@@ -7,4 +7,25 @@ def find_maxima(x):
     Output:
     idx -- list of indices of the local maxima in x
     """
-    return []
+    idx = []
+    # catch the case when input is an empty list
+    if x == []:
+        return idx
+    
+    # catch the case where a maximum is at the edge
+    if len(x) > 1:
+        if x[0] > x[1]:
+            idx.append(0)
+        if x[-1] > x[-2]:
+            idx.append(len(x)-1)
+
+    # if we only have two values, we are done
+    if len(x) == 2:
+        return idx
+
+    # other wise for everything not on the edge:
+    for i in range(1, len(x)-1):
+        if (x[i] > x[i-1]) & (x[i] > x[i+1]):
+            idx.append(i)
+    
+    return sorted(idx)
-- 
2.39.5