1 files changed, 38 insertions, 0 deletions
diff --git a/dictionary.py b/dictionary.py
new file mode 100644
index 0000000..32c4e73
--- /dev/null
+++ b/dictionary.py
@@ -0,0 +1,38 @@
+import errors
+
+# Recursive merge sort algorithm
+# https://rosettacode.org/wiki/Sorting_algorithms/Merge_sort#Python
+def merge(x, y, i):
+    if x == []:
+        return y
+    if y == []:
+        return x
+    return (
+        [x[0]] + merge(x[1:], y, i)
+        if x[0][i] < y[0][i]
+        else [y[0]] + merge(x, y[1:], i)
+    )
+
+
+def sort(a, n, i):
+    m = n // 2
+    return (
+        a
+        if n <= 1
+        else merge(sort(a[:m], m, i), sort(a[m:], n - m, i), i)
+    )
+
+
+class dictionary:
+    def __init__(self):
+        self.data = []
+        self.size = 0
+
+    def add(self, key, value):
+        if type(value) != int:
+            self.data.append([key, value])
+            self.size += 1
+
+    # Sort dictionary by value
+    def sort_by_value(self):
+        self.data = sort_v(self.data, self.size, 1)