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authorMartin Možina <martin.mozina@fri.uni-lj.si>2016-09-27 16:38:23 +0200
committerMartin Možina <martin.mozina@fri.uni-lj.si>2016-09-27 16:38:23 +0200
commitfc34673e84ea9bc823e8530c7564f0caa6a99000 (patch)
tree71f45925be60c9fde7a438a4835c53ee261e2ad9 /python/problems/comprehensions/sumsquares
parent01eb98c7a5e86325e1243f0d0f4e111a18d1e535 (diff)
Added exercises with list comprehensions.
Diffstat (limited to 'python/problems/comprehensions/sumsquares')
-rw-r--r--python/problems/comprehensions/sumsquares/common.py70
-rw-r--r--python/problems/comprehensions/sumsquares/en.py13
-rw-r--r--python/problems/comprehensions/sumsquares/sl.py34
3 files changed, 117 insertions, 0 deletions
diff --git a/python/problems/comprehensions/sumsquares/common.py b/python/problems/comprehensions/sumsquares/common.py
new file mode 100644
index 0000000..bda561e
--- /dev/null
+++ b/python/problems/comprehensions/sumsquares/common.py
@@ -0,0 +1,70 @@
+import re
+from python.util import has_token_sequence, string_almost_equal, \
+ string_contains_number, get_tokens, get_numbers, get_exception_desc, all_tokens,\
+ get_ast, has_comprehension, has_loop
+from server.hints import Hint
+
+id = 20701
+number = 1
+visible = True
+
+solution = '''\
+def sumsquares(n):
+ return sum(i**2 for i in range(n+1))
+'''
+
+hint_type = {
+ 'final_hint': Hint('final_hint'),
+ 'no_comprehension': Hint('no_comprehension')
+}
+
+def test(python, code):
+ func_name = 'sumsquares'
+ tokens = get_tokens(code)
+ ast = get_ast(code)
+ if not has_token_sequence(tokens, ['def', func_name]):
+ return False, [{'id' : 'no_func_name', 'args' : {'func_name' : func_name}}]
+
+ in_out = [
+ (100, 338350),
+ (10, 385),
+ ]
+
+ 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)):
+ corr = ans[0] == to
+ n_correct += corr
+ if not corr:
+ 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:
+ if not has_comprehension(ast):
+ hints.append({'id': 'no_comprehension'})
+ elif has_loop(ast):
+ hints.append({'id': 'has_loop'})
+ else:
+ 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/comprehensions/sumsquares/en.py b/python/problems/comprehensions/sumsquares/en.py
new file mode 100644
index 0000000..9f37ffc
--- /dev/null
+++ b/python/problems/comprehensions/sumsquares/en.py
@@ -0,0 +1,13 @@
+id = 20701
+name = 'Sum of squares'
+
+description = '''\
+<p>(translation missing)</p>'''
+
+hint = {
+ 'plan': '''\
+<p>(translation missing)</p>''',
+
+ 'no_input_call': '''\
+<p>(translation missing)</p>''',
+}
diff --git a/python/problems/comprehensions/sumsquares/sl.py b/python/problems/comprehensions/sumsquares/sl.py
new file mode 100644
index 0000000..b065cb5
--- /dev/null
+++ b/python/problems/comprehensions/sumsquares/sl.py
@@ -0,0 +1,34 @@
+import server
+mod = server.problems.load_language('python', 'sl')
+
+
+id = 20701
+name = 'Vsota kvadratov'
+
+description = '''\
+<p>
+Napišite funkcijo <code>sumsquares(n)</code>, ki izračuna in vrne vsoto: </p>
+<p>1<sup>2</sup> + 2<sup>2</sup> + ... + n<sup>2</sup> = ?</p>
+<p> Nalogo rešite brez zank. </p>
+'''
+
+plan = []
+
+hint = {
+ 'final_hint': ['''\
+<p>Program je pravilen! <br>
+</p>
+'''],
+
+ 'no_comprehension': ['''\
+<p>Program je sicer pravilen, vendar ne vsebuje izpeljanih seznamov ali
+generatorjev...
+</p>
+'''],
+
+ 'has_loop': ['''\
+<p>Program je sicer pravilen, vendar vsebuje zanko.
+</p>
+'''],
+
+}