Misc fixes across multiple algorithms (#6912)

Source: Snyk code quality
Add scikit-fuzzy to requirements

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>

project_euler/problem_001/sol7.py

@@ -26,9 +26,7 @@ def solution(n: int = 1000) -> int:
 
     result = 0
     for i in range(n):
-        if i % 3 == 0:
-            result += i
-        elif i % 5 == 0:
+        if i % 3 == 0 or i % 5 == 0:
             result += i
     return result
 

project_euler/problem_042/solution42.py

@@ -34,12 +34,11 @@ def solution():
         words = f.readline()
 
     words = [word.strip('"') for word in words.strip("\r\n").split(",")]
-    words = list(
-        filter(
-            lambda word: word in TRIANGULAR_NUMBERS,
-            (sum(ord(x) - 64 for x in word) for word in words),
-        )
-    )
+    words = [
+        word
+        for word in [sum(ord(x) - 64 for x in word) for word in words]
+        if word in TRIANGULAR_NUMBERS
+    ]
     return len(words)
 
 

project_euler/problem_067/sol1.py

@@ -28,8 +28,12 @@ def solution():
     with open(triangle) as f:
         triangle = f.readlines()
 
-    a = (x.rstrip("\r\n").split(" ") for x in triangle)
-    a = [list(map(int, x)) for x in a]
+    a = []
+    for line in triangle:
+        numbers_from_line = []
+        for number in line.strip().split(" "):
+            numbers_from_line.append(int(number))
+        a.append(numbers_from_line)
 
     for i in range(1, len(a)):
         for j in range(len(a[i])):

project_euler/problem_089/sol1.py

@@ -125,8 +125,9 @@ def solution(roman_numerals_filename: str = "/p089_roman.txt") -> int:
 
     savings = 0
 
-    file1 = open(os.path.dirname(__file__) + roman_numerals_filename)
-    lines = file1.readlines()
+    with open(os.path.dirname(__file__) + roman_numerals_filename) as file1:
+        lines = file1.readlines()
+
     for line in lines:
         original = line.strip()
         num = parse_roman_numerals(original)