bite 208

Author: boraxpr

Diff for: .gitignore

@@ -4,3 +4,4 @@
 **/__pycache__/
 /143/README.md
 /153/README.md
+/208/README.md

Diff for: 208/combos.py

@@ -0,0 +1,11 @@
+def find_number_pairs(numbers, N=10):
+    result = []
+    for number1 in numbers:
+        for number2 in numbers:
+            if number1+number2 == N and number1 != number2:
+                tuple = (number1, number2)
+                numbers.remove(number1)
+                result.append(tuple)
+    return result
+
+# print(find_number_pairs([1,2,3,4,5,6,7]))

Diff for: 208/test_combos.py

@@ -0,0 +1,28 @@
+import pytest
+
+from combos import find_number_pairs
+
+
+def _sort_all(ret):
+    return sorted(
+        [tuple(sorted(n)) for n in ret]
+    )
+
+
+@pytest.mark.parametrize("numbers, N, expected", [
+    ([2, 3, 5, 4, 6], 10, [(4, 6)]),
+    ([9, 1, 3, 8, 7], 10, [(9, 1), (3, 7)]),
+    ([0.2, 3, 0.4], 10, []),
+    ([0.2, 9.8, 10, 1, 0], 10, [(0.2, 9.8), (10, 0)]),
+    ([0.24, 0.36, 0.04, 0.06, 0.33, 0.08, 0.20, 0.27, 0.3, 0.31,
+      0.76, 0.05, 0.08, 0.08, 0.67, 0.09, 0.66, 0.79, 0.95], 1,
+     [(0.24, 0.76), (0.33, 0.67), (0.05, 0.95)]),
+    ([9, 1, 3, 8, 7], 0, []),
+    ([-9, 29, 11, 10, 9, 3, -1, 21], 20, [(-9, 29), (11, 9), (-1, 21)]),
+    ([1.69, 1.82, 2.91, 4.67, 4.81, 3.05, 5.82, 5.06,
+      4.28, 6.36, 5.19, 4.57], 10, [(4.81, 5.19)]),
+])
+def test_find_number_pairs(numbers, N, expected):
+    actual = find_number_pairs(numbers, N=N)
+    assert type(actual) == list
+    assert _sort_all(actual) == _sort_all(expected)