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author | Martin <martin@leo.fri1.uni-lj.si> | 2015-09-21 15:54:27 +0200 |
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committer | Martin <martin@leo.fri1.uni-lj.si> | 2015-09-21 15:54:27 +0200 |
commit | eb93adb4a8b71ddf2272c6c13f645784497add9f (patch) | |
tree | c7174c6c2eef4ace094514aebbf82de83132d456 /python/problems/while_and_if/competition/common.py | |
parent | b202e2d5007ca9a53b4ffac4cc2224d647119dbc (diff) |
Added problem "Competition"
Revised problem "Buy five"
Diffstat (limited to 'python/problems/while_and_if/competition/common.py')
-rw-r--r-- | python/problems/while_and_if/competition/common.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/python/problems/while_and_if/competition/common.py b/python/problems/while_and_if/competition/common.py new file mode 100644 index 0000000..79f7447 --- /dev/null +++ b/python/problems/while_and_if/competition/common.py @@ -0,0 +1,84 @@ +# coding=utf-8 + +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, HintSequence + +id = 192 +group = 'while_and_if' +number = 2 +visible = True + +solution = '''\ +vsota = 0 +i = int(input('Število izdelkov: ')) +while i > 0: + vsota += int(input('Cena artikla: ')) + i -= 1 +print('Vsota:', vsota) +''' + +hint_type = { + 'plan': HintSequence('plan', 1), +} + +def test(python, code): + # List of inputs: (expression to eval, stdin). + test_in = [ + (None, '3\n2\n4\n1\n'), + (None, '3\n1\n1\n1\n'), + (None, '4\n2\n0\n3\n-1\n'), + (None, '7\n1\n2\n5\n4\n3\n11\n7\n'), + (None, '5\n0\n0\n0\n0\n0\n'), + ] + + test_out = [ + 7, + 3, + 4, + 33, + 0, + ] + + # List of outputs: (expression result, stdout, stderr, exception). + answers = python(code=code, inputs=test_in, timeout=1.0) + outputs = [ans[1] for ans in answers] + + n_correct = 0 + for output, correct in zip(outputs, test_out): + if string_almost_equal(output, correct): + n_correct += 1 + return n_correct, len(test_in) + +def hint(python, code): + # run one test first to see if there are any exceptions + test_in = [(None, '5\n1\n1\n1\n1\n1\n')] + answer = python(code=code, inputs=test_in, timeout=1.0) + exc = get_exception_desc(answer) + if exc: return exc + + tokens = get_tokens(code) + + # if has not input, tell him to ask for values + if not has_token_sequence(tokens, ['input']): + return [{'id' : 'read_before_while'}] + + # student does not have while or for: instruct him on loops + if not has_token_sequence(tokens, ['while']) and \ + not has_token_sequence(tokens, ['for']): + return [{'id' : 'while_clause'}] + + # student is not using print function + if not has_token_sequence(tokens, ['print']): + return [{'id' : 'printing'}] + + # student does not know how to accumulate values (print contains 0 or 1) + if string_contains_number(answer[0][1], 0) or \ + string_contains_number(answer[0][1], 1): + return [{'id' : 'summation'}] + + # student does not print any values + if not get_numbers(answer[0][1]): + return [{'id' : 'nonumber'}] + + return None |