diff --git a/Problem1.py b/Problem1.py
new file mode 100644
index 0000000..69fc08f
--- /dev/null
+++ b/Problem1.py
@@ -0,0 +1,7 @@
+import pandas as pd
+
+def article_views(views: pd.DataFrame) -> pd.DataFrame:
+    views = views[views['author_id'] == views['viewer_id']]
+    views = views.rename(columns={'author_id' : 'id'})
+    result = views[['id']].drop_duplicates()
+    return result.sort_values(by='id')
\ No newline at end of file
diff --git a/Problem2.py b/Problem2.py
new file mode 100644
index 0000000..b3366fe
--- /dev/null
+++ b/Problem2.py
@@ -0,0 +1,6 @@
+import pandas as pd
+
+def invalid_tweets(tweets: pd.DataFrame) -> pd.DataFrame:
+    a=tweets[tweets['content'].str.len()>15]
+    b=a[['tweet_id']]
+    return b
\ No newline at end of file