Add 2021-1

1/solution.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+def get_positive_changes(values):
+    count = 0
+
+    for i in range(1, len(values)):
+        if int(values[i - 1]) < int(values[i]):
+            count += 1
+    return count
+
+if __name__ == '__main__':
+    f = open("input", "r")
+    values = f.readlines()
+    print('1. solution:', get_positive_changes(values))
+
+    new_values = []
+    for i in range(2, len(values)):
+        new_values.append(int(values[i]) + int(values[i-1]) + int(values[i-2]))
+
+    print('2. solution:', get_positive_changes(new_values))