From d06dade8c75dfa5aceacaf1a1b47f61c5fef31c4 Mon Sep 17 00:00:00 2001 From: Martin Date: Tue, 29 Sep 2015 10:05:55 +0200 Subject: Added three problems to while and if section. --- .../while_and_if/checking_account/common.py | 84 ++++++++++++++++++++++ .../problems/while_and_if/checking_account/en.py | 16 +++++ .../problems/while_and_if/checking_account/sl.py | 83 +++++++++++++++++++++ 3 files changed, 183 insertions(+) create mode 100644 python/problems/while_and_if/checking_account/common.py create mode 100644 python/problems/while_and_if/checking_account/en.py create mode 100644 python/problems/while_and_if/checking_account/sl.py (limited to 'python/problems/while_and_if/checking_account') diff --git a/python/problems/while_and_if/checking_account/common.py b/python/problems/while_and_if/checking_account/common.py new file mode 100644 index 0000000..610bbfc --- /dev/null +++ b/python/problems/while_and_if/checking_account/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 = 200 +group = 'while_and_if' +number = 5 +visible = True + +solution = '''\ +stanje = 0 +while stanje > -100: + stanje += int(input('Sprememba ')) + print('Stanje', stanje) +print('Bankrot') +''' + +hint_type = { + 'while_clause': Hint('while_clause'), + 'while_condition': Hint('while_condition'), +} + +def test(python, code): + # List of inputs: (expression to eval, stdin). + test_in = [ + (None, '23\n15\n-30\n10\n100\n-200\n-50\n'), + (None, '10\n-100\n1000\n-10000\n'), + (None, '1\n2\n'), + (None, '-1000\n'), + (None, '0\n'), + ] + + test_out = [ + (-132, True), + (-9090, True), + (3, False), + (-1000, True), + (0, False), + ] + + # 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 + tin = None + for i, (output, correct) in enumerate(zip(outputs, test_out)): + if string_almost_equal(output, correct[0]) and \ + ('Bankrot' in output) == correct[1]: + n_correct += 1 + else: + tin = test_in[i][1] + tout = correct + + 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), + 'sum': str(tout[0]), + 'bancrupt': str(tout[1])}}) + return passed, hints + +def hint(python, code): + tokens = get_tokens(code) + + # run one test first to see if there are any exceptions + test_in = [(None, '23\n15\n-30\n8\n10\n100\n-200\n-50\n')] + answer = python(code=code, inputs=test_in, timeout=1.0) + exc = get_exception_desc(answer[0][3]) + if exc: + return exc + + # 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's answer is not correct + if not string_almost_equal(answer[0][1], -132): + return [{'id' : 'while_condition'}] + + return None diff --git a/python/problems/while_and_if/checking_account/en.py b/python/problems/while_and_if/checking_account/en.py new file mode 100644 index 0000000..f583fd8 --- /dev/null +++ b/python/problems/while_and_if/checking_account/en.py @@ -0,0 +1,16 @@ +# coding=utf-8 + +id = 199 +name = '(translation missing)' +slug = '(translation missing)' + +description = '''\ +

(translation missing)

''' + +hint = { + 'plan': '''\ +

(translation missing)

''', + + 'no_input_call': '''\ +

(translation missing)

''', +} diff --git a/python/problems/while_and_if/checking_account/sl.py b/python/problems/while_and_if/checking_account/sl.py new file mode 100644 index 0000000..2825431 --- /dev/null +++ b/python/problems/while_and_if/checking_account/sl.py @@ -0,0 +1,83 @@ +# coding=utf-8 +import server +mod = server.problems.load_language('python', 'sl') + +id = 200 +name = 'Tekoči račun' +slug = 'Tekoči račun' + + +description = '''\ +

Državna agencija za varstvo potrošnikov je razpisala projekt za izdelavo programa, s katerimi bodo +lahko potrošniki nadzorovali svoje tekoče račune. V program uporabniki vtipkavajo prejemke in +izdatke (kot pozitivne in negativne zneske) na svojem tekočem računu. Program jim sproti izpisuje +stanje in se ustavi, ko je uporabnik v minusu za 100 evrov ali več.

+
+Sprememba 23
+Stanje 23
+Sprememba 15
+Stanje 38
+Sprememba ­30
+Stanje 8
+Sprememba 10
+Stanje 18
+Sprememba 100
+Stanje 118
+Sprememba ­200
+Stanje ­82
+Sprememba ­50
+Stanje ­132
+Bankrot
+
+''' + +main_plan = ['''\ +

Plan

je enak kot pri prejšnjih nalogah, le vsebina je drugačna: +
+1.Ponavljaj dokler ni bankrot
+    2.Preberi ceno
+    3.Posodobi vsoto
+4. Izpiši bankrot
+
+'''] + +while_condition = ['''\ +

Koliko korakov naj naredi zanka?

''', + '''\ +

Dokler velja, da je stanje višje od 100

''' + '''\ +
+while stanje > -100:
+    ...
+
''' +] + +plan = [main_plan, + while_condition] + +while_clause = ['''\ +

Uporabi zanko ''', + '''\ +

+while Pogoj:
+    stavek 1
+    stavek 2
+    ...
+stavek n # stavek izven while.
+
''', + '''\ +

Stavki znotraj while (zamaknjeni) se izvajajo toliko časa, dokler velja Pogoj. +Ko pogoj ne velja več, Python preskoči vrstice, ki so del while-a in nadaljuje s stavki, ki sledijo – v +našem primeru s stavkom n.

''' + ] + +hint = { + 'while_clause': while_clause, + + 'while_condition': while_condition, + + 'problematic_test_case': ['''\ +

Zaporedje cen, kjer program ne dela prav: [%=testin%]
+Bankrot: [%=bancrupt%], Končno stanje: [%=sum%]'''] + +} -- cgit v1.2.1