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-rw-r--r--python/problems/functions/friendly_numbers/common.py75
1 files changed, 75 insertions, 0 deletions
diff --git a/python/problems/functions/friendly_numbers/common.py b/python/problems/functions/friendly_numbers/common.py
new file mode 100644
index 0000000..fe121dc
--- /dev/null
+++ b/python/problems/functions/friendly_numbers/common.py
@@ -0,0 +1,75 @@
+# coding=utf-8
+
+import re
+from python.util import has_token_sequence, string_almost_equal, \
+ string_contains_number, get_tokens, get_numbers, get_exception_desc
+from server.hints import Hint
+
+id = 233
+number = 12
+visible = True
+
+solution = '''\
+def divisors_sum(n):
+ s = 0
+ for i in range(1, n):
+ if n % i == 0:
+ s += i
+ return s
+
+def amicable_number(n):
+ s = divisors_sum(n)
+ if n == divisors_sum(s):
+ return s
+'''
+
+hint_type = {
+ 'final_hint': Hint('final_hint')
+}
+
+def test(python, code):
+ func_name = 'amicable_number'
+ tokens = get_tokens(code)
+ if not has_token_sequence(tokens, ['def', func_name]):
+ return False, [{'id' : 'no_func_name', 'args' : {'func_name' : func_name}}]
+
+ in_out = [
+ (220, 284),
+ (284, 220),
+ (1010, None),
+ (6, None),
+ (2620, 2924),
+ (1, None),
+ (10, None),
+ (1210, 1184)
+ ]
+
+ test_in = [(func_name+'(%s)'%str(l[0]), None) for l in in_out]
+ test_out = [l[1] for l in in_out]
+
+ answers = python(code=code, inputs=test_in, timeout=1.0)
+ n_correct = 0
+ tin, tout = None, None
+ for i, (ans, to) in enumerate(zip(answers, test_out)):
+ n_correct += ans[0] == to
+ if ans[0] != to:
+ tin = test_in[i][0]
+ tout = to
+
+ passed = n_correct == len(test_in)
+ hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_in)}}]
+ if tin:
+ hints.append({'id': 'problematic_test_case', 'args': {'testin': str(tin), 'testout': str(tout)}})
+ if passed:
+ hints.append({'id': 'final_hint'})
+ return passed, hints
+
+def hint(python, code):
+ tokens = get_tokens(code)
+
+ # run one test first to see if there are any exceptions
+ answer = python(code=code, inputs=[(None, None)], timeout=1.0)
+ exc = get_exception_desc(answer[0][3])
+ if exc: return exc
+
+ return None