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01.py

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+left = []
+right = []
+with open('input01.txt') as file:
+    for line in file:
+        left.append(line.split()[0])
+        right.append(line.split()[1])
+left.sort()
+right.sort()
+out = 0
+for i in range(0,len(left)):
+    cnt = 0
+    for j in range(0,len(right)):
+        if right[j] > left[i]:
+            out += int(left[i])*cnt
+            break
+        elif right[j] == left[i]:
+            cnt += 1
+print(out)

02.py

@@ -0,0 +1,24 @@
+def test(arr):
+    flagDown = int(arr[1])>int(arr[0])
+    for i in range(1,len(arr)):
+        diff = int(arr[i])-int(arr[i-1]) if flagDown else int(arr[i-1])-int(arr[i])
+        if diff > 3 or diff < 1:
+            return False
+    return True
+
+out = 0
+with open('input02.txt') as file:
+    for line in file:
+        arr = line.split()
+        flagSafe = True
+        if not test(arr):
+            for k in range(0,len(arr)):
+                fixarr = arr.copy()
+                del fixarr[k]
+                if test(fixarr):
+                    out += 1
+                    break
+        else:
+            out += 1
+
+print(out)