From 4b0e419541244969e3177b7da6efc3149c2263aa Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matev=C5=BE=20Pober=C5=BEnik?= Date: Fri, 13 Oct 2017 12:42:22 +0200 Subject: Python: Add introduction group for FKKT students Python: Add anchor link to jump to FKKT exercices --- .../introduction-fkkt/area_of_a_triangle/common.py | 97 +++++++++++++++++++ .../introduction-fkkt/area_of_a_triangle/sl.py | 93 ++++++++++++++++++ python/problems/introduction-fkkt/common.py | 2 + python/problems/introduction-fkkt/en.py | 3 + .../introduction-fkkt/hello_world/common.py | 62 ++++++++++++ .../problems/introduction-fkkt/hello_world/sl.py | 38 ++++++++ .../introduction-fkkt/molar_mass/common.py | 91 ++++++++++++++++++ python/problems/introduction-fkkt/molar_mass/sl.py | 106 +++++++++++++++++++++ .../pythagorean_theorem_fkkt/common.py | 100 +++++++++++++++++++ .../pythagorean_theorem_fkkt/sl.py | 93 ++++++++++++++++++ python/problems/introduction-fkkt/sl.py | 5 + .../introduction-fkkt/what_is_your_name/common.py | 81 ++++++++++++++++ .../introduction-fkkt/what_is_your_name/sl.py | 68 +++++++++++++ 13 files changed, 839 insertions(+) create mode 100644 python/problems/introduction-fkkt/area_of_a_triangle/common.py create mode 100644 python/problems/introduction-fkkt/area_of_a_triangle/sl.py create mode 100644 python/problems/introduction-fkkt/common.py create mode 100644 python/problems/introduction-fkkt/en.py create mode 100644 python/problems/introduction-fkkt/hello_world/common.py create mode 100644 python/problems/introduction-fkkt/hello_world/sl.py create mode 100644 python/problems/introduction-fkkt/molar_mass/common.py create mode 100644 python/problems/introduction-fkkt/molar_mass/sl.py create mode 100644 python/problems/introduction-fkkt/pythagorean_theorem_fkkt/common.py create mode 100644 python/problems/introduction-fkkt/pythagorean_theorem_fkkt/sl.py create mode 100644 python/problems/introduction-fkkt/sl.py create mode 100644 python/problems/introduction-fkkt/what_is_your_name/common.py create mode 100644 python/problems/introduction-fkkt/what_is_your_name/sl.py (limited to 'python/problems') diff --git a/python/problems/introduction-fkkt/area_of_a_triangle/common.py b/python/problems/introduction-fkkt/area_of_a_triangle/common.py new file mode 100644 index 0000000..f8f7198 --- /dev/null +++ b/python/problems/introduction-fkkt/area_of_a_triangle/common.py @@ -0,0 +1,97 @@ +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 = 25003 +number = 4 +visible = True + +solution = '''\ +a = float(input("Prva kateta [cm]: ")) +b = float(input("Druga kateta [cm]: ")) + +p = a * b / 2 + +print("Ploščina =", p, "cm^2") +''' + +hint_type = { + 'plan': Hint('plan'), + 'name_error': Hint('name_error'), + 'unsupported_operand': Hint('unsupported_operand'), + 'no_input_call' : Hint('no_input_call'), + 'printing': Hint('printing'), + 'math_functions': Hint('math_functions'), + 'final_hint': Hint('final_hint') +} + +def test(python, code, aux_code=''): + # List of inputs: (expression to eval, stdin). + test_in = [ + (None, '3\n4\n'), + (None, '4\n3\n'), + (None, '12\n5\n'), + (None, '5\n12\n'), + (None, '5\n0\n'), + (None, '0\n5\n'), + (None, '1\n1\n'), + ] + + test_out = [ + "Ploščina = 6.0 cm^2", + "Ploščina = 6.0 cm^2", + "Ploščina = 30.0 cm^2", + "Ploščina = 30.0 cm^2", + "Ploščina = 0.0 cm^2", + "Ploščina = 0.0 cm^2", + "Ploščina = 0.5 cm^2" + ] + + # List of outputs: (expression result, stdout, stderr, exception). + answers = python(code=aux_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, float(correct), prec=2): + if output.rstrip().endswith(correct): + 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), 'testout': str(tout)}}) + if passed: + hints.append({'id': 'final_hint'}) + return passed, hints + +def hint(python, code, aux_code=''): + tokens = get_tokens(code) + + # run one test first to see if there are any exceptions + test_in = [(None, '3\n4\n')] + answer = python(code=aux_code+code, inputs=test_in, timeout=1.0) + exc = answer[0][3] + exc_hint = get_exception_desc(answer[0][3]) + if exc: + if 'NameError' in exc: + return [{'id':'name_error', 'args': {'message': exc}}] + elif 'unsupported operand' in exc or 'TypeError' in exc: + return [{'id':'unsupported_operand', 'args': {'message': exc}}] + else: + return exc_hint + + # if input is not present in code, student needs to learn about input + if not has_token_sequence(tokens, ['input']) or \ + (not has_token_sequence(tokens, ['float']) and not has_token_sequence(tokens, ['int'])) or \ + not has_token_sequence(tokens, ['=']): + return [{'id': 'no_input_call'}] + + if not has_token_sequence(tokens, ['print']): + return [{'id' : 'printing'}] + + return None diff --git a/python/problems/introduction-fkkt/area_of_a_triangle/sl.py b/python/problems/introduction-fkkt/area_of_a_triangle/sl.py new file mode 100644 index 0000000..7f7a48d --- /dev/null +++ b/python/problems/introduction-fkkt/area_of_a_triangle/sl.py @@ -0,0 +1,93 @@ +import server +mod = server.problems.load_language('python', 'sl') + +name = 'Ploščina pravokotnega trikotnika' +slug = 'Ploščina pravokotnega trikotnika' + +description = '''\ +

Program iz prejšnje naloge spremenite tako, da izračuna in izpiše ploščino pravokotnega trikotnika.
+Primer uporabe:

+
+Prva kateta [cm]: 3
+Druga kateta [cm]: 4
+Ploščina = 6.0 cm^2
+
+''' + +no_input_call = ['''\ +

Tako kot pri prejšnji nalogi za branje uporabimo funkcijo input

''', + '''\ +

Preberemo dve vrednosti in jih shranimo v dve spremenljivki:

+
+ a = float(input("Prva kateta: "))
+ b = float(input("Druga kateta: "))
+
''', + '''\ +

Imeni a in b sta spremenljivki (angl. variable). +Spremenljivke uporabljamo, kadar želimo kakšno vrednost shraniti, ki jo bomo +potrebovali kasneje v programu. Imena spremenljivk so lahko poljubno + dolga, v našem primeru bi jim lahko rekli tudi kateta_a in kateta_b. + Pri programiranju velja, da izbiramo taka imena spremenljivk, + ki bodo naredila program berljiv.

+ ''' +] + +math_functions = ['''\ +

Ploščina pravokotnega trikotnika je polovica zmnožka obeh katet.

''', + '''\ +
+p = (a * b) / 2
+
''' +] + +printing = ['''\ +

V Pythonu izpisujemo s funkcijo print.

''', + '''\ +

Če želimo izpisati več elementov, +jih ločimo z vejico. Recimo, da imamo spremenljivko ime, +ki vsebuje naše ime, potem lahko napišemo:

+
+print("Ime mi je", ime, ".")
+
'''] + +plan = ['''\ +

Program razdelimo na tri dele, kot pri prejšnji nalogi:

+
    +
  1. Preberi vrednosti katet (a,b = ?)
    2. +
  2. Izračunaj ploščino trikotnika p (p = …)
    3. +
  3. Izpis ploščine trikotnika (print … )
    4. +
+''', + no_input_call, + math_functions, + printing] + +hint = { + 'no_input_call': no_input_call, + + 'math_functions': math_functions, + + 'printing': printing, + + 'name_error' : [mod.general_msg['error_head'], mod.general_msg['general_exception'], + mod.general_msg['name_error'], ''' +

Verjetno uporabljaš spremenljivko, ki nima vrednosti. Ali v izrazu za izračun + uporabljaš napačno spremenljivko? Ali pri izpisu morda poskušaš + izpisati napačno spremenljivko?

'''], + + 'unsupported_operand' : [mod.general_msg['error_head'], mod.general_msg['general_exception'], + mod.general_msg['type_error'], ''' +

Verjetni razlog: funkcija input vrača vrednost tipa niz, +ki jo moramo najprej pretvoriti v tip float, če želimo z njo računati:

+
+v = float(input(" ...
+
+'''], + + 'final_hint' : [ + '''\ +

Program deluje pravilno!
+To pomeni, da znaš prebrati števila in na njih uporabljati matematične operacije. +

'''] + +} diff --git a/python/problems/introduction-fkkt/common.py b/python/problems/introduction-fkkt/common.py new file mode 100644 index 0000000..62c9ee7 --- /dev/null +++ b/python/problems/introduction-fkkt/common.py @@ -0,0 +1,2 @@ +id = 2500 +number = 10 diff --git a/python/problems/introduction-fkkt/en.py b/python/problems/introduction-fkkt/en.py new file mode 100644 index 0000000..1990c96 --- /dev/null +++ b/python/problems/introduction-fkkt/en.py @@ -0,0 +1,3 @@ +name = 'Introduction - FKKT' +description = 'Expressions, variables, built-in functions, input, output, first program' + diff --git a/python/problems/introduction-fkkt/hello_world/common.py b/python/problems/introduction-fkkt/hello_world/common.py new file mode 100644 index 0000000..b881ba8 --- /dev/null +++ b/python/problems/introduction-fkkt/hello_world/common.py @@ -0,0 +1,62 @@ +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 +import re + +id = 25000 +number = 1 +visible = True + +solution = '''\ +print("Hello world!") +''' + +hint_type = { + 'syntax_error': Hint('syntax_error'), + 'printing': Hint('printing'), + 'final_hint': Hint('final_hint'), +} + +def test(python, code, aux_code=''): + # List of inputs: (expression to eval, stdin). + test_in = [ + (None, '') + ] + test_out = [ + 'Hello world!' + ] + + # List of outputs: (expression result, stdout, stderr, exception). + answers = python(code=aux_code+code, inputs=test_in, timeout=1.0) + + if answers[0][1].rstrip() == 'Hello world!': + n_correct = 1 + passed = True + else: + n_correct = 0 + passed = False + + hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_in)}}] + if passed: + hints.append({'id': 'final_hint'}) + return passed, hints + +def hint(python, code, aux_code=''): + tokens = get_tokens(code) + + # run one test first to see if there are any exceptions + test_in = [(None, '')] + answer = python(code=aux_code+code, inputs=test_in, timeout=1.0) + exc = answer[0][3] + exc_hint = get_exception_desc(answer[0][3]) + if exc: + if 'SyntaxError' in exc: + return [{'id':'syntax_error', 'args': {'message': exc}}] + else: + return exc_hint + + # student is not using print function + if not has_token_sequence(tokens, ['print']): + return [{'id' : 'printing'}] + + return None diff --git a/python/problems/introduction-fkkt/hello_world/sl.py b/python/problems/introduction-fkkt/hello_world/sl.py new file mode 100644 index 0000000..68e7881 --- /dev/null +++ b/python/problems/introduction-fkkt/hello_world/sl.py @@ -0,0 +1,38 @@ +import server +mod = server.problems.load_language('python', 'sl') + +name = 'Hello world!' +slug = 'Hello world!' + +description = '''\ +

Napišite program, ki izpiše "Hello world!".

''' + +printing = '''\ +

V Pythonu izpisujemo s funkcijo print.

''' + +syntax_error = '''\ +

Primer programa, ki bi pravilno izpisal samo "Hello!": print("Hello!")

''' + +plan = ['''\ +

Program izvedemo z uporabo funkcije print, ki naj izpiše "Hello world!".

+''', + printing, + syntax_error + ] + +hint = { + 'printing': printing, + + 'syntax_error' : [ + mod.general_msg['error_head'], + mod.general_msg['general_exception'], + syntax_error + ], + + + 'final_hint' : [ + '''\ +

Odlično, program deluje!
+Pri tej nalogi si se naučil, kako enostavno je uporabiti funkcijo print.

+'''] +} diff --git a/python/problems/introduction-fkkt/molar_mass/common.py b/python/problems/introduction-fkkt/molar_mass/common.py new file mode 100644 index 0000000..10aa098 --- /dev/null +++ b/python/problems/introduction-fkkt/molar_mass/common.py @@ -0,0 +1,91 @@ +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 = 25004 +number = 5 +visible = True + +solution = '''\ +hidracija = int(input('Stopnja hidracije: ')) + +Cu = 63.5 +S = 32.1 +O = 16.0 +H = 1.0 +mm = Cu + S + 4 * O + hidracija * (2 * H + O) + +print('Molska masa je', mm, 'g/mol.') +''' + +hint_type = { + 'plan': Hint('plan'), + 'name_error': Hint('name_error'), + 'unsupported_operand': Hint('unsupported_operand'), + 'no_input_call' : Hint('no_input_call'), + 'printing': Hint('printing'), + 'final_hint': Hint('final_hint') +} + +def test(python, code, aux_code=''): + # List of inputs: (expression to eval, stdin). + test_in = [ + (None, '1'), + (None, '2'), + (None, '5') + ] + + test_out = [ + "Molska masa je 177.6 g/mol", + "Molska masa je 195.6 g/mol", + "Molska masa je 249.6 g/mol", + ] + + # List of outputs: (expression result, stdout, stderr, exception). + answers = python(code=aux_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, float(correct), prec=2): + if output.rstrip().endswith(correct): + 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), 'testout': str(tout)}}) + if passed: + hints.append({'id': 'final_hint'}) + return passed, hints + +def hint(python, code, aux_code=''): + tokens = get_tokens(code) + + # run one test first to see if there are any exceptions + test_in = [(None, '1\n')] + answer = python(code=aux_code+code, inputs=test_in, timeout=1.0) + exc = answer[0][3] + exc_hint = get_exception_desc(answer[0][3]) + if exc: + if 'NameError' in exc: + return [{'id':'name_error', 'args': {'message': exc}}] + elif 'unsupported operand' in exc or 'TypeError' in exc: + return [{'id':'unsupported_operand', 'args': {'message': exc}}] + else: + return exc_hint + + # if input is not present in code, student needs to learn about input + if not has_token_sequence(tokens, ['input']) or \ + (not has_token_sequence(tokens, ['float']) and not has_token_sequence(tokens, ['int'])) or \ + not has_token_sequence(tokens, ['=']): + return [{'id': 'no_input_call'}] + + if not has_token_sequence(tokens, ['print']): + return [{'id' : 'printing'}] + + return None diff --git a/python/problems/introduction-fkkt/molar_mass/sl.py b/python/problems/introduction-fkkt/molar_mass/sl.py new file mode 100644 index 0000000..7a0af3d --- /dev/null +++ b/python/problems/introduction-fkkt/molar_mass/sl.py @@ -0,0 +1,106 @@ +import server +mod = server.problems.load_language('python', 'sl') + +name = 'Molska masa' +slug = 'Molska masa' + +description = '''\ +

Molsko maso lahko izračunamo elementom in spojinam. V periodnem sistemu najdemo relativne atomske mase in iz njih izračunamo molske mase. Relativna atomska masa neona je Ar(Ne) = 20.2. Iz tega sledi, da je molska masa neona M(Ne) = 20.2 g/mol. Pri izračunu molske mase večatomnih molekul (elementov in spojin) moramo upoštevati število posameznih atomov v molekuli. Tako je relativna atomska masa vodika Ar(H) = 1.0, relativna atomska masa kisika pa Ar(O) = 16.0. Iz tega sledi, da je relativna molekulska masa vode Mr(H2O) = 2·1.0 + 16.0 = 18.0. Molska masa vode pa je M(H2O) = 18.0 g/mol.

+

Bakrov(II) sulfat je kemijska spojina s formulo CuSO4. Spojina ima pravzaprav več kemijskih formul, ki so odvisne od stopnje hidratacije. Tako je modra galica bakrov(II) sulfat pentahidrat s formulo CuSO4·5H2O. Izračunajte molsko maso na podlagi preglednice in vnosa uporabnika, ki vnese stopnjo hidracije oz. število molekul vode.

+
+ + + + + + + + + + + + + + + + + + + + + + + + + +
elementrelativna atomska masa
Cu63.5
S32.1
O16.0
H1.0
+
+

Primer uporabe:

+
Stopnja hidracije: 5 
+Molska masa je 249.6 g/mol
+''' + +no_input_call = ['''\ +

Tako kot pri prejšnji nalogi za branje uporabimo funkcijo input

''', + '''\ +

Preberemo vrednost in jo shranimo v spremenljivko:

+
+ h = float(input("Stopnja hidracije: "))
+
''', + '''\ +

Ime h je spremenljivka (angl. variable). +Spremenljivke uporabljamo, kadar želimo kakšno vrednost shraniti, ki jo bomo +potrebovali kasneje v programu. Imena spremenljivk so lahko poljubno + dolga, v našem primeru bi ji lahko rekli tudi hidracija. + Pri programiranju velja, da izbiramo taka imena spremenljivk, + ki bodo naredila program berljiv.

+ ''' +] + +printing = ['''\ +

V Pythonu izpisujemo s funkcijo print.

''', + '''\ +

Če želimo izpisati več elementov, +jih ločimo z vejico. Recimo, da imamo spremenljivko ime, +ki vsebuje naše ime, potem lahko napišemo:

+
+print("Ime mi je", ime, ".")
+
'''] + +plan = ['''\ +

Program razdelimo na tri dele, kot pri prejšnji nalogi:

+
    +
  1. Preberi vrednost hidracije (h = ?)i
    2. +
  2. Izračunaj molsko maso mm (mm = …)
    3. +
  3. Izpiši rezultat (print … )
    4. +
+''', + no_input_call, + printing] + +hint = { + 'no_input_call': no_input_call, + + 'printing': printing, + + 'name_error' : [mod.general_msg['error_head'], mod.general_msg['general_exception'], + mod.general_msg['name_error'], ''' +

Verjetno uporabljaš spremenljivko, ki nima vrednosti. Ali v izrazu za izračun + uporabljaš napačno spremenljivko? Ali pri izpisu morda poskušaš + izpisati napačno spremenljivko?

'''], + + 'unsupported_operand' : [mod.general_msg['error_head'], mod.general_msg['general_exception'], + mod.general_msg['type_error'], ''' +

Verjetni razlog: funkcija input vrača vrednost tipa niz, +ki jo moramo najprej pretvoriti v tip float, če želimo z njo računati:

+
+v = float(input(" ...
+
+'''], + + 'final_hint' : [ + '''\ +

Program deluje pravilno! +

'''] + +} diff --git a/python/problems/introduction-fkkt/pythagorean_theorem_fkkt/common.py b/python/problems/introduction-fkkt/pythagorean_theorem_fkkt/common.py new file mode 100644 index 0000000..cb78487 --- /dev/null +++ b/python/problems/introduction-fkkt/pythagorean_theorem_fkkt/common.py @@ -0,0 +1,100 @@ +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 = 25002 +number = 3 +visible = True + +solution = '''\ +from math import * +a = float(input("Prva kateta: ")) +b = float(input("Druga kateta: ")) +c = sqrt(a ** 2 + b ** 2) +print("Hipotenuza trikotnika s stranicama", a, "in", b, "je", c) +''' + +hint_type = { + 'plan': Hint('plan'), + 'name_error': Hint('name_error'), + 'unsupported_operand': Hint('unsupported_operand'), + 'no_input_call' : Hint('no_input_call'), + 'printing': Hint('printing'), + 'math_functions': Hint('math_functions'), + 'final_hint': Hint('final_hint') +} + +def test(python, code, aux_code=''): + # List of inputs: (expression to eval, stdin). + test_in = [ + (None, '3\n4\n'), + (None, '4\n3\n'), + (None, '12\n5\n'), + (None, '5\n12\n'), + (None, '5\n0\n'), + (None, '0\n5\n'), + ] + + test_out = [ + "Hipotenuza = 5.0 cm", + "Hipotenuza = 5.0 cm", + "Hipotenuza = 13.0 cm", + "Hipotenuza = 13.0 cm", + "Hipotenuza = 5.0 cm", + "Hipotenuza = 5.0 cm", + ] + + # List of outputs: (expression result, stdout, stderr, exception). + answers = python(code=aux_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 output.rstrip().endswith(correct): + #if string_almost_equal(output, float(correct), prec=2): + 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), 'testout': str(tout)}}) + if passed: + hints.append({'id': 'final_hint'}) + return passed, hints + +def hint(python, code, aux_code=''): + tokens = get_tokens(code) + + # run one test first to see if there are any exceptions + test_in = [(None, '3\n4\n')] + answer = python(code=aux_code+code, inputs=test_in, timeout=1.0) + exc = answer[0][3] + exc_hint = get_exception_desc(answer[0][3]) + if exc: + if 'NameError' in exc: + return [{'id':'name_error', 'args': {'message': exc}}] + elif 'unsupported operand' in exc or 'TypeError' in exc: + return [{'id':'unsupported_operand', 'args': {'message': exc}}] + else: + return exc_hint + + # if input is not present in code, student needs to learn about input + if not has_token_sequence(tokens, ['input']) or \ + (not has_token_sequence(tokens, ['float']) and not has_token_sequence(tokens, ['int'])) or \ + not has_token_sequence(tokens, ['=']): + return [{'id': 'no_input_call'}] + + # if tokens sqrt or ** are not in code, we have to teach them how to + # use math functions. + if not has_token_sequence(tokens, ['**']): + return [{'id' : 'math_functions'}] + + # student is not using print function + if not has_token_sequence(tokens, ['print']): + return [{'id' : 'printing'}] + + return None diff --git a/python/problems/introduction-fkkt/pythagorean_theorem_fkkt/sl.py b/python/problems/introduction-fkkt/pythagorean_theorem_fkkt/sl.py new file mode 100644 index 0000000..e94e87a --- /dev/null +++ b/python/problems/introduction-fkkt/pythagorean_theorem_fkkt/sl.py @@ -0,0 +1,93 @@ +import server +mod = server.problems.load_language('python', 'sl') + +name = 'Pitagorov izrek' +slug = 'Pitagorov izrek' + +description = '''\ +

Napiši program, ki uporabnika vpraša po dolžinah katet pravokotnega trikotnika in +izpiše dolžino hipotenuze.

+

Primer uporabe:

+
Prva kateta [cm]: 3
+Druga kateta [cm]: 4
+Hipotenuza = 5.0 cm
+''' + +no_input_call = ['''\ +

Tako kot pri prejšnji nalogi za branje uporabimo funkcijo input

''', + '''\ +

Preberemo dve vrednosti in jih shranimo v dve spremenljivki:

+
+ a = float(input("Prva kateta: "))
+ b = float(input("Druga kateta: "))
+
''', + '''\ +

Imeni a in b sta spremenljivki (angl. variable). +Spremenljivke uporabljamo, kadar želimo kakšno vrednost shraniti, ki jo bomo +potrebovali kasneje v programu. Imena spremenljivk so lahko poljubno + dolga, v našem primeru bi jim lahko rekli tudi kateta_a in kateta_b. + Pri programiranju velja, da izbiramo taka imena spremenljivk, + ki bodo naredila program berljiv.

+ ''' +] + +math_functions = ['''\ +

Dolžina hipotenuze je kvadratni koren vsote kvadratov katet.

''', + '''\ +
+c = (a**2 + b**2)**(1/2)
+
+

Dvojni znak za množenje ** je potenciranje. Potenca 1/2 pomeni koren. ''' +] + +printing = ['''\ +

V Pythonu izpisujemo s funkcijo print.

''', + '''\ +

Če želimo izpisati več elementov, +jih ločimo z vejico. Recimo, da imamo spremenljivko ime, +ki vsebuje naše ime, potem lahko napišemo:

+
+print("Ime mi je", ime, ".")
+
'''] + +plan = ['''\ +

Program razdelimo na tri dele:

+
    +
  1. Preberi vrednosti katet (a,b = ?)
    2. +
  2. Izračunaj dolžino hipotenuze c (c = …)
    3. +
  3. Izpis dolžine hipotenuze (print … )
    4. +
+''', + no_input_call, + math_functions, + printing] + +hint = { + 'no_input_call': no_input_call, + + 'math_functions': math_functions, + + 'printing': printing, + + 'name_error' : [mod.general_msg['error_head'], mod.general_msg['general_exception'], + mod.general_msg['name_error'], ''' +

Verjetno uporabljaš spremenljivko, ki nima vrednosti. Ali v izrazu za izračun + uporabljaš napačno spremenljivko? Ali pri izpisu morda poskušaš + izpisati napačno spremenljivko?

'''], + + 'unsupported_operand' : [mod.general_msg['error_head'], mod.general_msg['general_exception'], + mod.general_msg['type_error'], ''' +

Verjetni razlog: funkcija input vrača vrednost tipa niz, +ki jo moramo najprej pretvoriti v tip float, če želimo z njo računati:

+
+v = float(input(" ...
+
+'''], + + 'final_hint' : [ + '''\ +

Program deluje pravilno!
+To pomeni, da znaš prebrati števila in na njih uporabljati matematične operacije. +

'''] + +} diff --git a/python/problems/introduction-fkkt/sl.py b/python/problems/introduction-fkkt/sl.py new file mode 100644 index 0000000..a084ad6 --- /dev/null +++ b/python/problems/introduction-fkkt/sl.py @@ -0,0 +1,5 @@ +name = 'Uvod - FKKT' +description = ''' +Prvi koraki v Pythonu: +izrazi, spremenljivke, vgrajene funkcije, vhod, izhod, prvi program.''' + diff --git a/python/problems/introduction-fkkt/what_is_your_name/common.py b/python/problems/introduction-fkkt/what_is_your_name/common.py new file mode 100644 index 0000000..64b5a4e --- /dev/null +++ b/python/problems/introduction-fkkt/what_is_your_name/common.py @@ -0,0 +1,81 @@ +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 +import re + +id = 25001 +number = 2 +visible = True + +solution = '''\ +ime = input("Vpiši ime: ") +print("Dolžina imena", ime, "je", len(ime)) +''' + +hint_type = { + 'no_input_call': Hint('no_input_call'), + 'printing': Hint('printing'), + 'name_error': Hint('name_error'), + 'final_hint': Hint('final_hint'), +} + +def test(python, code, aux_code=''): + # List of inputs: (expression to eval, stdin). + test_in = [ + (None, 'Ana\n'), + (None, 'Luka\n'), + (None, 'Valentina\n'), + ] + test_out = [ + 'Dolžina imena Ana je 3', + 'Dolžina imena Luka je 4', + 'Dolžina imena Valentina je 9' + ] + + # List of outputs: (expression result, stdout, stderr, exception). + answers = python(code=aux_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 output.rstrip().endswith(correct): + 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), 'testout': str(tout)}}) + if passed: + hints.append({'id': 'final_hint'}) + return passed, hints + +def hint(python, code, aux_code=''): + tokens = get_tokens(code) + + # run one test first to see if there are any exceptions + test_in = [(None, 'Ana\n')] + answer = python(code=aux_code+code, inputs=test_in, timeout=1.0) + exc = answer[0][3] + exc_hint = get_exception_desc(answer[0][3]) + if exc: + if 'NameError' in exc: + return [{'id':'name_error', 'args': {'message': exc}}] + else: + return exc_hint + + # if input is not present in code, student needs to learn about input + if not has_token_sequence(tokens, ['input']): + return [{'id': 'no_input_call'}] + + if not re.findall(r'=[^\n]*?input', code): + return [{'id': 'no_input_call'}] + + # student is not using print function + if not has_token_sequence(tokens, ['print']): + return [{'id' : 'printing'}] + + return None diff --git a/python/problems/introduction-fkkt/what_is_your_name/sl.py b/python/problems/introduction-fkkt/what_is_your_name/sl.py new file mode 100644 index 0000000..ed0adb1 --- /dev/null +++ b/python/problems/introduction-fkkt/what_is_your_name/sl.py @@ -0,0 +1,68 @@ +import server +mod = server.problems.load_language('python', 'sl') + +name = 'Kako ti je ime?' +slug = 'Kako ti je ime?' + +description = '''\ +

Napišite program, ki uporabnika povpraša najprej po imenu in na zaslon izpiše dolžino tega imena.

+

Primer uporabe:

+
+Vpiši ime: Janez 
+Dolžina imena Janez je 5
+
''' + +no_input_call = ['''\ +

Uporabi funkcijo input in shrani ime.

''', + '''\ +

Funkcija input sprejme niz (angl. string), ki se +prikaže uporabniku kot vprašanje in vrača, kar je uporabnik napisal.

''', + '''\ +

Primer:

+
+ime = input("Kako ti je ime?")
+
+

pokliče funkcijo input, ki povpraša uporabnika po imenu in +shrani uporabnikov odgovor v spremenljivko ime.

'''] + +printing = ['''\ +

V Pythonu izpisujemo s funkcijo print.

''', + '''\ +

Če želimo izpisati več elementov, jih ločimo z vejico ali pa +sestavimo elemente v en niz. +Imejmo spremenljivko ime, ki vsebuje naše ime, potem: +
+print("Ime mi je", ime, ".")
+
'''] + +plan = ['''\ +

Program izvedemo v dveh korakih:

+
    +
  1. Vprašaj uporabnika po imenu.
    2. +
  2. Izpiši potreben niz.
    3. +
''', + no_input_call, + printing + ] + +hint = { + 'no_input_call': no_input_call, + + 'printing': printing, + + 'name_error' : [ + mod.general_msg['error_head'], + mod.general_msg['general_exception'], + mod.general_msg['name_error'], + '''\ +

Verjetno uporabljaš spremenljivko. Ali pri izpisu morda poskušaš +izpisati napačno spremenljivko?

''' + ], + + 'final_hint' : [ + '''\ +

Odlično, program deluje!
+Pri tej nalogi si se naučil uporabljati funkcijo input +in izpisati več elementov hkrati. +'''] +} -- cgit v1.2.1