Day 1 Task 5

1 files changed, 15 insertions, 0 deletions

diff --git a/day1/task5/task5.py b/day1/task5/task5.py
new file mode 100644
index 0000000..52eafc2
--- /dev/null
+++ b/day1/task5/task5.py
@@ -0,0 +1,15 @@
+with open('task5_data.txt') as f:
+    print(f.read())
+
+with open('task5_data.txt', 'rb+') as input_byte, open('task5_data_new.txt', 'wb') as out:
+    char = input_byte.read(1)
+    while char:
+        binary = list(bin(int(char.hex(), 16))[2:])
+        if binary[-2] == '1':
+            binary[-2] = '0'
+        elif binary[-2] == '0':
+            binary[-2] = '1'
+    
+        out.write(bytes([int(''.join(binary), 2)]))
+        char = input_byte.read(1)
+