keon · goswami-rahul · Jun 8, 2018 · Jun 7, 2018 · Jun 7, 2018 · Jun 7, 2018
diff --git a/algorithms/arrays/max_ones_index.py b/algorithms/arrays/max_ones_index.py
@@ -40,4 +40,4 @@ def max_ones_index(arr):
     if n - prev_prev_zero > max_count:
         max_index = prev_zero
 
-    return max_index
+    return max_index
diff --git a/algorithms/calculator/math_parser.py b/algorithms/calculator/math_parser.py
@@ -144,4 +144,4 @@ def main():
 
 
 if __name__ == "__main__":
-    main()
+    main()
diff --git a/algorithms/dfs/sudoku_solver.py b/algorithms/dfs/sudoku_solver.py
@@ -107,4 +107,4 @@ def test_sudoku_solver(self):
 
 
 if __name__ == "__main__":
-    unittest.main()
+    unittest.main()
diff --git a/algorithms/dp/fib.py b/algorithms/dp/fib.py
@@ -70,4 +70,4 @@ def fib_iter(n):
     return sum
 
 # => 354224848179261915075
-# print(fib_iter(100))
+# print(fib_iter(100))
diff --git a/...ms/graph/checkDiGraphStronglyConnected.py → ...graph/check_digraph_strongly_connected.py b/...ms/graph/checkDiGraphStronglyConnected.py → ...graph/check_digraph_strongly_connected.py
diff --git a/.../graph/pathBetweenTwoVerticesInDiGraph.py → ...h/path_between_two_vertices_in_digraph.py b/.../graph/pathBetweenTwoVerticesInDiGraph.py → ...h/path_between_two_vertices_in_digraph.py
diff --git a/algorithms/maths/base_conversion.py b/algorithms/maths/base_conversion.py
@@ -8,7 +8,7 @@
 
 import string
 
-def int2base(n, base):
+def int_to_base(n, base):
     """
         :type n: int
         :type base: int
@@ -31,7 +31,7 @@ def int2base(n, base):
         return res[::-1]
 
 
-def base2int(s, base):
+def base_to_int(s, base):
     """
         Note : You can use int() built-in function instread of this.
         :type s: str

diff --git a/algorithms/search/__init__.py b/algorithms/search/__init__.py
@@ -1,6 +1,6 @@
 from .binary_search import *
-from .first_occurance import *
-from .last_occurance import *
+from .first_occurrence import *
+from .last_occurrence import *
 from .linear_search import *
 from .search_insert import *
 from .two_sum import *

diff --git a/algorithms/search/first_occurance.py → algorithms/search/first_occurrence.py b/algorithms/search/first_occurance.py → algorithms/search/first_occurrence.py
@@ -3,7 +3,7 @@
 # Approach- Binary Search
 # T(n)- O(log n)
 #
-def first_occurance(array, query):
+def first_occurrence(array, query):
     lo, hi = 0, len(array) - 1
     while lo <= hi:
         mid = (lo + hi) // 2

diff --git a/algorithms/search/last_occurance.py → algorithms/search/last_occurrence.py b/algorithms/search/last_occurance.py → algorithms/search/last_occurrence.py
@@ -3,7 +3,7 @@
 # Approach- Binary Search
 # T(n)- O(log n)
 #
-def last_occurance(array, query):
+def last_occurrence(array, query):
     lo, hi = 0, len(array) - 1
     while lo <= hi:
         mid = (hi + lo) // 2

diff --git a/algorithms/stack/longest_abs_path.py b/algorithms/stack/longest_abs_path.py
@@ -38,24 +38,24 @@ def length_longest_path(input):
     :type input: str
     :rtype: int
     """
-    currlen, maxlen = 0, 0    # running length and max length
+    curr_len, max_len = 0, 0    # running length and max length
     stack = []    # keep track of the name length
     for s in input.split('\n'):
         print("---------")
         print("<path>:", s)
         depth = s.count('\t')    # the depth of current dir or file
         print("depth: ", depth)
         print("stack: ", stack)
-        print("curlen: ", currlen)
+        print("curlen: ", curr_len)
         while len(stack) > depth:    # go back to the correct depth
-            currlen -= stack.pop()
+            curr_len -= stack.pop()
         stack.append(len(s.strip('\t'))+1)   # 1 is the length of '/'
-        currlen += stack[-1]    # increase current length
+        curr_len += stack[-1]    # increase current length
         print("stack: ", stack)
-        print("curlen: ", currlen)
+        print("curlen: ", curr_len)
         if '.' in s:    # update maxlen only when it is a file
-            maxlen = max(maxlen, currlen-1)    # -1 is to minus one '/'
-    return maxlen
+            max_len = max(max_len, curr_len-1)    # -1 is to minus one '/'
+    return max_len
 
 st= "dir\n\tsubdir1\n\t\tfile1.ext\n\t\tsubsubdirectory1\n\tsubdir2\n\t\tsubsubdir2\n\t\t\tfile2.ext"
 st2 = "a\n\tb1\n\t\tf1.txt\n\taaaaa\n\t\tf2.txt"

diff --git a/algorithms/strings/make_sentence.py b/algorithms/strings/make_sentence.py
@@ -15,13 +15,13 @@
 count = 0
 
 
-def make_sentence(str_piece, dictionarys):
+def make_sentence(str_piece, dictionaries):
     global count
     if len(str_piece) == 0:
         return True
     for i in range(0, len(str_piece)):
         prefix, suffix = str_piece[0:i], str_piece[i:]
-        if prefix in dictionarys:
-            if suffix in dictionarys or make_sentence(suffix, dictionarys):
+        if prefix in dictionaries:
+            if suffix in dictionaries or make_sentence(suffix, dictionaries):
                 count += 1
     return True
diff --git a/algorithms/tree/bintree2list.py → algorithms/tree/bin_tree_to_list.py b/algorithms/tree/bintree2list.py → algorithms/tree/bin_tree_to_list.py
@@ -4,28 +4,28 @@ def __init__(self, val = 0):
         self.left = None
         self.right = None
 
-def bintree2list(root):
+def bin_tree_to_list(root):
     """
     type root: root class
     """
     if not root:
         return root
-    root = bintree2list_util(root)
+    root = bin_tree_to_list_util(root)
     while root.left:
         root = root.left
     return root
 
-def bintree2list_util(root):
+def bin_tree_to_list_util(root):
     if not root:
         return root
     if root.left:
-        left = bintree2list_util(root.left)
+        left = bin_tree_to_list_util(root.left)
         while left.right:
             left = left.right
         left.right = root
         root.left = left
     if root.right:
-        right = bintree2list_util(root.right)
+        right = bin_tree_to_list_util(root.right)
         while right.left:
             right = right.left
         right.left = root
@@ -45,5 +45,5 @@ def print_tree(root):
 tree.left.right = Node(30)
 tree.right.left = Node(36)
 
-head = bintree2list(tree)
+head = bin_tree_to_list(tree)
 print_tree(head)
diff --git a/algorithms/tree/bst/array2bst.py → algorithms/tree/bst/array_to_bst.py b/algorithms/tree/bst/array2bst.py → algorithms/tree/bst/array_to_bst.py
@@ -11,11 +11,11 @@ def __init__(self, x):
         self.right = None
 
 
-def array2bst(nums):
+def array_to_bst(nums):
     if not nums:
         return None
     mid = len(nums)//2
     node = TreeNode(nums[mid])
-    node.left = array2bst(nums[:mid])
-    node.right = array2bst(nums[mid+1:])
+    node.left = array_to_bst(nums[:mid])
+    node.right = array_to_bst(nums[mid+1:])
     return node
diff --git a/algorithms/tree/longest_consecutive.py b/algorithms/tree/longest_consecutive.py
@@ -32,18 +32,18 @@ def longest_consecutive(root):
     """
     if not root:
         return 0
-    maxlen = 0
-    dfs(root, 0, root.val, maxlen)
-    return maxlen
+    max_len = 0
+    dfs(root, 0, root.val, max_len)
+    return max_len
 
 
-def dfs(root, cur, target, maxlen):
+def dfs(root, cur, target, max_len):
     if not root:
         return
     if root.val == target:
         cur += 1
     else:
         cur = 1
-    maxlen = max(cur, maxlen)
-    dfs(root.left, cur, root.val+1, maxlen)
-    dfs(root.right, cur, root.val+1, maxlen)
+    max_len = max(cur, max_len)
+    dfs(root.left, cur, root.val+1, max_len)
+    dfs(root.right, cur, root.val+1, max_len)
diff --git a/algorithms/tree/red_black_tree/red_black_tree.py b/algorithms/tree/red_black_tree/red_black_tree.py
@@ -202,7 +202,7 @@ def delete(self, node):
             node_min.left = node.left
             node_min.left.parent = node_min
             node_min.color = node.color
-        # when node is black ,then need to fix it with 4 cases
+        # when node is black, then need to fix it with 4 cases
         if node_color == 0:
             self.delete_fixup(temp_node)
 

diff --git a/algorithms/tree/segment_tree/segment_tree.py b/algorithms/tree/segment_tree/segment_tree.py
@@ -10,12 +10,12 @@ def __init__(self,arr,function):
         self.fn = function
         self.maketree(0,0,len(arr)-1)
 
-    def maketree(self,i,l,r):
+    def make_tree(self,i,l,r):
         if l==r:
             self.segment[i] = self.arr[l]
         elif l<r:
-            self.maketree(2*i+1,l,int((l+r)/2))
-            self.maketree(2*i+2,int((l+r)/2)+1,r)
+            self.make_tree(2*i+1,l,int((l+r)/2))
+            self.make_tree(2*i+2,int((l+r)/2)+1,r)
             self.segment[i] = self.fn(self.segment[2*i+1],self.segment[2*i+2])
 
     def __query(self,i,L,R,l,r):

diff --git a/tests/test_maths.py b/tests/test_maths.py
@@ -1,5 +1,5 @@
 from algorithms.maths import (
-    int2base, base2int,
+    int_to_base, base_to_int,
     extended_gcd,
     factorial, factorial_recur,
     gcd, lcm,
@@ -26,14 +26,14 @@ class TestBaseConversion(unittest.TestCase):
     """
 
     def test_int2base(self):
-        self.assertEqual("101", int2base(5, 2))
-        self.assertEqual("0", int2base(0, 2))
-        self.assertEqual("FF", int2base(255, 16))
+        self.assertEqual("101", int_to_base(5, 2))
+        self.assertEqual("0", int_to_base(0, 2))
+        self.assertEqual("FF", int_to_base(255, 16))
 
     def test_base2int(self):
-        self.assertEqual(5, base2int("101", 2))
-        self.assertEqual(0, base2int("0", 2))
-        self.assertEqual(255, base2int("FF", 16))
+        self.assertEqual(5, base_to_int("101", 2))
+        self.assertEqual(0, base_to_int("0", 2))
+        self.assertEqual(255, base_to_int("FF", 16))
 
 
 class TestExtendedGcd(unittest.TestCase):

diff --git a/tests/test_search.py b/tests/test_search.py
@@ -1,7 +1,7 @@
 from algorithms.search import (
     binary_search, binary_search_recur,
-    first_occurance,
-    last_occurance,
+    first_occurrence,
+    last_occurrence,
     linear_search,
     search_insert,
     two_sum, two_sum1, two_sum2,
@@ -15,17 +15,17 @@
 
 class TestSuite(unittest.TestCase):
 
-    def test_first_occurance(self):
+    def test_first_occurrence(self):
         def helper(array, query):
             idx = array.index(query) if query in array else None
             return idx
         array = [1, 1, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 6, 6, 6]
-        self.assertEqual(first_occurance(array, 1), helper(array, 1))
-        self.assertEqual(first_occurance(array, 3), helper(array, 3))
-        self.assertEqual(first_occurance(array, 5), helper(array, 5))
-        self.assertEqual(first_occurance(array, 6), helper(array, 6))
-        self.assertEqual(first_occurance(array, 7), helper(array, 7))
-        self.assertEqual(first_occurance(array, -1), helper(array, -1))
+        self.assertEqual(first_occurrence(array, 1), helper(array, 1))
+        self.assertEqual(first_occurrence(array, 3), helper(array, 3))
+        self.assertEqual(first_occurrence(array, 5), helper(array, 5))
+        self.assertEqual(first_occurrence(array, 6), helper(array, 6))
+        self.assertEqual(first_occurrence(array, 7), helper(array, 7))
+        self.assertEqual(first_occurrence(array, -1), helper(array, -1))
 
     def test_binary_search(self):
         array = [1, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 6]
@@ -39,13 +39,13 @@ def test_binary_search(self):
         self.assertEqual(-1, binary_search_recur(array, 0, 11, 7))
         self.assertEqual(-1, binary_search_recur(array, 0, 11, -1))
 
-    def test_last_occurance(self):
+    def test_last_occurrence(self):
         array = [1, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 6, 6, 6]
-        self.assertEqual(5, last_occurance(array, 3))
-        self.assertEqual(10, last_occurance(array, 5))
-        self.assertEqual(None, last_occurance(array, 7))
-        self.assertEqual(0, last_occurance(array, 1))
-        self.assertEqual(13, last_occurance(array, 6))
+        self.assertEqual(5, last_occurrence(array, 3))
+        self.assertEqual(10, last_occurrence(array, 5))
+        self.assertEqual(None, last_occurrence(array, 7))
+        self.assertEqual(0, last_occurrence(array, 1))
+        self.assertEqual(13, last_occurrence(array, 6))
 
     def test_linear_search(self):
         array = [1, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 6, 6, 6]
Original file line number	Diff line number	Diff line change
Expand Up		@@ -144,4 +144,4 @@ def main():


		if __name__ == "__main__":
		main()
		main()
Original file line number	Diff line number	Diff line change
Expand Up		@@ -107,4 +107,4 @@ def test_sudoku_solver(self):


		if __name__ == "__main__":
		unittest.main()
		unittest.main()