From 12378810ee9207536bfa0c264c1bf2a2b0296171 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Mo=C5=BEina?= Date: Wed, 24 Aug 2016 15:32:22 +0200 Subject: Added several new exercises for Python (related to dictionaries and sets). --- .../problems/dictionaries/transactions/common.py | 71 ++++++++++++++++++++++ python/problems/dictionaries/transactions/en.py | 13 ++++ python/problems/dictionaries/transactions/sl.py | 41 +++++++++++++ 3 files changed, 125 insertions(+) create mode 100644 python/problems/dictionaries/transactions/common.py create mode 100644 python/problems/dictionaries/transactions/en.py create mode 100644 python/problems/dictionaries/transactions/sl.py (limited to 'python/problems/dictionaries/transactions') diff --git a/python/problems/dictionaries/transactions/common.py b/python/problems/dictionaries/transactions/common.py new file mode 100644 index 0000000..66d6387 --- /dev/null +++ b/python/problems/dictionaries/transactions/common.py @@ -0,0 +1,71 @@ +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 = 20605 +number = 4 +visible = True + +solution = '''\ +def transactions(start, trans): + state = dict(start) + for fr, to, amount in trans: + state[fr] -= amount + state[to] += amount + most = None # could use -1, however all can be in debt + for who, amount in state.items(): + if most is None or amount > most: + most, richest = amount, who + return richest +''' + +hint_type = { + 'final_hint': Hint('final_hint') +} + +def test(python, code): + func_name = 'transactions' + 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 = [ + (([("Ana", 0), ("Berta", 1)], [("Berta", "Ana", 1)]), "Ana"), + (([("Ana", 0), ("Berta", 1)], []), "Berta"), + (([("Ana", 3), ("Berta", 2)], [("Berta", "Berta", 3)]), "Ana"), + (([("Ana", 4), ("Berta", 8), ("Cilka", 10)], + [("Cilka", "Ana", 3), ("Cilka", "Ana", 2), ("Ana", "Berta", 2)]), + "Berta"), + ] + + test_in = [('{0}{1}'.format(func_name, 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 diff --git a/python/problems/dictionaries/transactions/en.py b/python/problems/dictionaries/transactions/en.py new file mode 100644 index 0000000..f60bc08 --- /dev/null +++ b/python/problems/dictionaries/transactions/en.py @@ -0,0 +1,13 @@ +id = 20605 +name = 'Transactions' + +description = '''\ +

(translation missing)

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

(translation missing)

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

(translation missing)

''', +} diff --git a/python/problems/dictionaries/transactions/sl.py b/python/problems/dictionaries/transactions/sl.py new file mode 100644 index 0000000..b80a688 --- /dev/null +++ b/python/problems/dictionaries/transactions/sl.py @@ -0,0 +1,41 @@ +import server +mod = server.problems.load_language('python', 'sl') + + +id = 20605 +name = 'Transakcije' + +description = '''\ +

+V začetku je imela Ana štiri zlatnike, Berta 8 in CIlka 10, torej +[('Ana', 4), ('Berta', 8), ('Cilka', 10)]. Nato je dala Cilka +Ani 3 zlatnike; potem je dala Cilka Ani še 2; na koncu je dala Ana Berti 2, +kar zapišemo [('Cilka', 'Ana', 3), ('Cilka', 'Ana', 2), ('Ana', 'Berta', 2)]. +Kdo ima na koncu največ? +

+ +

+Napišite funkcijo transactions(start, tr), ki dobi gornja seznama in +vrne ime najbogatejše osebe po koncu transakcij. Če je na koncu več enako +bogatih najbogatejših oseb, naj vrne poljubno izmed njih. Namig: delo +si boste poenostavili, če bo funkcija takoj pretvorila sezmam v +primernejšo podatkovno strukturo. +

+

+Primer +

+>>> transakcije([('Ana', 4), ('Berta', 8), ('Cilka', 10)], [('Cilka', 'Ana', 3),
+('Cilka', 'Ana', 2), ('Ana', 'Berta', 2)])
+Berta
+
+

+''' + +plan = [] + +hint = { + 'final_hint': ['''\ +

Program je pravilen!
+

+'''], +} -- cgit v1.2.1