Codewars

Author: Jean-carje

README.md

@@ -28,6 +28,7 @@
 [validDate Regex](https://www.codewars.com/kata/548db0bd1df5bbf29b0000b7/)   | [Python solution](python/5_kyu/validDate_Regex.py)  
 [Hail Caesar](https://www.codewars.com/kata/57067d7b7a53e88ae400024c)   | [Python solution](python/5_kyu/Hail_Caesar.py)
 [String incrementer](https://www.codewars.com/kata/54a91a4883a7de5d7800009c/)   | [Python solution](python/5_kyu/String_incrementer.py)
+[Directions Reduction](https://www.codewars.com/kata/550f22f4d758534c1100025a/solutions/python)   | [Python solution](python/5_kyu/Directions_Reduction.py)
 
 **6-kyu** 
         Problems/Kata         |  Solution  
@@ -53,3 +54,4 @@
 [Python's Dynamic Classes #1](https://www.codewars.com/kata/55ddb0ea5a133623b6000043)   | [Python solution](python/7_kyu/Python_Dynamic_Classes_1.py) 
 [Maximum Length Difference](https://www.codewars.com/kata/5663f5305102699bad000056/)   | [Javascript solution](javascript/7_kyu/Maximum_Length_Difference.js) 
 [Beginner Series #3 Sum of Numbers](https://www.codewars.com/kata/55f2b110f61eb01779000053/)   | [Javascript solution](javascript/7_kyu/Beginner_Series3.js) 
+[Remove the minimum](https://www.codewars.com/kata/563cf89eb4747c5fb100001b)   | [Javascript solution](javascript/7_kyu/Remove_the_minimum.js) 

javascript/7_kyu/Remove_the_minimum.js

@@ -0,0 +1,38 @@
+// Kata link:
+// https://www.codewars.com/kata/563cf89eb4747c5fb100001b
+
+// -------------------------------------
+// Instructions:
+/*
+
+Given an array of integers, remove the smallest value. Do not mutate the original array/list. If there are multiple elements with the same value, remove the one with a lower index. If you get an empty array/list, return an empty array/list.
+
+Don't change the order of the elements that are left.
+
+Examples
+  removeSmallest([1,2,3,4,5]) = [2,3,4,5]
+  removeSmallest([5,3,2,1,4]) = [5,3,2,4]
+  removeSmallest([2,2,1,2,1]) = [2,2,2,1]
+*/
+
+// -------------------------------------
+// Solution 1:
+
+function removeSmallest(numbers) {
+  if (!numbers) {
+    return [];
+  }
+  let min = Math.min(...numbers);
+  let ind = numbers.indexOf(min);
+  return numbers.slice(0, ind).concat(numbers.slice(ind + 1));
+}
+
+
+// -------------------------------------
+// Basic Tests
+
+console.log(removeSmallest([1, 2, 3, 4, 5]), [2, 3, 4, 5]);
+console.log(removeSmallest([5, 3, 2, 1, 4]), [5, 3, 2, 4]);
+console.log(removeSmallest([2, 2, 1, 2, 1]), [2, 2, 2, 1]);
+console.log(removeSmallest([]), [])
+

python/4_kyu/Number_of_Proper_Fractions_with_Denominator.py

@@ -35,7 +35,7 @@ def proper_fractions(num):
         return 0
     x = num > 1 and num
     for p in range(2, int(num ** .5) + 1):
-        if not num % p:
+        if not num % p:d
             x -= x // p
             while not num % p:
                 num //= p

python/5_kyu/Directions_Reduction.py

@@ -0,0 +1,43 @@
+# Kata link:
+# https://www.codewars.com/kata/550f22f4d758534c1100025a/train/python
+# -------------------------------------
+# Solution 1:
+
+def dirReduc(arr):
+    for _ in range(len(arr) // 2):
+        if len(arr) > 1:
+            for x in range(len(arr) - 1):
+                if arr[x] == 'NORTH' and arr[x+1] == 'SOUTH' or arr[x] == 'SOUTH' and arr[x+1] == 'NORTH':
+                    del arr[x:x+2]
+                    break
+                elif arr[x] == 'EAST' and arr[x+1] == 'WEST' or arr[x] == 'WEST' and arr[x+1] == 'EAST':
+                    del arr[x:x+2]
+                    break
+        else:
+            break
+    return arr
+
+# Solution 2:
+
+# opposite = {'NORTH': 'SOUTH', 'EAST': 'WEST', 'SOUTH': 'NORTH', 'WEST': 'EAST'}
+
+# def dirReduc(plan):
+    # new_plan = []
+    # for d in plan:
+        # if new_plan and new_plan[-1] == opposite[d]:
+            # new_plan.pop()
+        # else:
+            # new_plan.append(d)
+    # return new_plan
+
+# -------------------------------------
+# Basic Tests
+
+
+a = ["NORTH", "SOUTH", "SOUTH", "EAST", "WEST", "NORTH", "WEST"]
+
+print(dirReduc(a), ['WEST'])
+u=["NORTH", "WEST", "SOUTH", "EAST"]
+
+print(dirReduc(u), ["NORTH", "WEST", "SOUTH", "EAST"])
+