Interesting Python Cases

Интересные_кейсы/Excercises.py

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+def exercise1():
+    count = 0
+    s = ''
+    x = 0
+    xs = 0
+    for a in range(1, 35):
+        for b in range(1, 35):
+            for c in range(1, 35):
+                for d in range(1, 35):
+                    if (a != b) and (a != c) and (a != d) and (b != c) and (b != d) and (c != d):
+                        if ((a ** 3) + (b ** 3)) == ((c ** 3) + (d ** 3)):
+                            count += 1
+                            x = (a ** 3) + (b ** 3)
+                            s += str(x) + ' '
+                            if str(x) in s:
+                                xs += 1
+                                if xs == 1:
+                                    print('x =', x)
+                                    xs = 0
+                                else:
+                                    xs = 0
+                            if count == 5:
+                                break
+            if count == 5:
+                break
+        if count == 5:
+            break
+    return 'Конец программы'
+
+#exercise1()
+
+def exercise2():
+    age = 27
+    txt = 'My name is Timur, I am {}'.format(age)
+    print(txt)
+    return 'Конец программы'
+
+#exercise2()
+
+def exercise3():
+    from time import time
+    start = time()
+    a, flag = [17, 24, 91, 96, 67, -27, 79, -71, -71, 58, 48, 88, 88, -16, -78, 96, -76, 56, 92, 1, 32, -17, 36, 88,
+               -61, -97, -37, -84, 50, 47, 94, -6, 52, -76, 93, 14, -32, 98, -65, -16, -9, -68, -20, -40, -71, 93, -91,
+               44, 25, 79, 97, 0, -94, 7, -47, -96, -55, -58, -78, -78, -79, 75, 44, -56, -41, 38, 16, 70, 17, -17, -24,
+               -83, -74, -73, 11, -26, 63, -75, -19, -13, -51, -74, 21, -8, 21, -68, -66, -84, -95, 78, 69, -29, 39, 38,
+               -55, 7, -11, -26, -62, -84], 0
+
+    n = len(a)
+    for i in range(n - 1):
+        for j in range(n - i - 1):
+            if a[j] > a[j + 1]:
+                a[j], a[j + 1] = a[j + 1], a[j]
+                flag += 1
+        if flag == 0:
+            break
+    print(a)
+    print(time() - start)
+
+#exercise3()
+
+def exercise4():
+    a, a1 = [78, -32, 5, 39, 58, -5, -63, 57, 72, 9, 53, -1, 63, -97, -21, -94, -47, 57, -8, 60, -23, -72, -22, -79, 90,
+             96, -41, -71, -48, 84, 89, -96, 41, -16, 94, -60, -64, -39, 60, -14, -62, -19, -3, 32, 98, 14, 43, 3, -56,
+             71, -71, -67, 80, 27, 92, 92, -64, 0, -77, 2, -26, 41, 3, -31, 48, 39, 20, -30, 35, 32, -58, 2, 63, 64, 66,
+             62, 82, -62, 9, -52, 35, -61, 87, 78, 93, -42, 87, -72, -10, -36, 61, -16, 59, 59, 22, -24, -67, 76, -94,
+             59], []
+    cax = a[0]
+    n = len(a)
+    # реализация алгоритма сортировки выбором
+    for i in range(n):
+        cax = max(a)
+        sd = a.index(cax)
+        del a[sd]
+        a1.append(cax)
+    a1.reverse()
+    print(a1)
+
+#exercise4()
+
+def find_all(target, symbol):
+    return [i for i in range(len(target)) if target[i] == symbol]
+
+def exercise5():
+    s = 'abcdabcaaa'
+    char = 'a'
+    print(find_all(s, char))
+
+#exercise5()
+
+def row_sum_odd_numbers(n):
+    sx = 0
+    if n == 1:
+        print(1)
+    else:
+        ind2 = (n - 1) + (n * n)
+        ind1 = ind2 - ((n - 1) * 2)
+        for i in range(ind1, (ind2 + 1), 2):
+            sx += i
+        print(sx)
+
+def exercise6():
+    row_sum_odd_numbers(2)
+
+#exercise6()
+
+def convert_to_python_case(text):
+    s = ''
+    for i in range(len(text)):
+        if i == 0:
+            s += text[i].lower()
+            continue
+        if text[i].isupper():
+            s += '_' + text[i].lower()
+        else:
+            s += text[i]
+    return s
+
+def exercise7():
+    txt = 'ThisIsCamelCased'
+    print(convert_to_python_case(txt))
+
+#exercise7()
+
+def exercise8():
+    x, s, y = 15 // 2, '*', ''
+    for i in range(8):
+        y = ' ' * (x) + s
+        y.strip()
+        print(y)
+        s += '**'
+        x -= 1
+
+#exercise8()
+
+def exercise9(num):
+    v1 = ['один', 'два', 'три', 'четыре', 'пять', 'шесть', 'семь', 'восемь', 'девять']
+    v2 = ['одиннадцать', 'двенадцать', 'тринадцать', 'четырнадцать', 'пятнадцать', 'шестнадцать', 'семнадцать',
+    'восемнадцать', 'девятнадцать']
+    v3 = ['десять', 'двадцать', 'тридцать', 'сорок', 'пятьдесят', 'шестьдесят', 'семьдесят', 'восемьдесят',
+    'девяносто']
+
+    if num % 10 == 0:
+        x = num // 10
+        return v3[x - 1]
+    elif num < 10:
+        return v1[num - 1]
+    elif 11 <= num <= 19:
+        x = num % 10
+        return v2[x - 1]
+    elif 20 < num < 100:
+        x1 = num // 10
+        x2 = num % 10
+        xx = v3[x1 - 1] + ' ' + v1[x2 - 1]
+        return xx
+
+#for i in range(1, 100):
+    #print(exercise9(i))
+
+def is_pangram(text):
+    text1 = text.lower()
+    alph = [chr(i) for i in range(97, 123)]
+    for i in range(len(text)):
+        if text1[i] == ' ':
+            continue
+        elif (text1[i] in alph):
+            x = alph.index(text1[i])
+            del alph[x]
+    if len(alph) == 0:
+        return True
+    else:
+        return False
+
+def exercise10(text):
+    print(is_pangram(text))
+
+#exercise10('Jackdaws love my big sphinx of quartz')

Интересные_кейсы/Search_Internet.py

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+import time
+import pyautogui
+import webbrowser
+
+def write_comment():
+    pyautogui.moveTo(1209, 1010, duration=0.5)
+    pyautogui.click()
+    time.sleep(0.25)
+    pyautogui.typewrite('good!')
+    pyautogui.press('enter')
+
+
+def maint():
+    webbrowser.open('https://www.google.com/')
+
+    time.sleep(1)
+    pyautogui.moveTo(611, 339, duration=0.25)
+    pyautogui.click()
+
+    pyautogui.typewrite('python hello world', 0.05)
+    pyautogui.press('enter')
+
+    time.sleep(1)
+    pyautogui.moveTo(330, 209, duration=0.25)
+    pyautogui.click()
+
+    write_comment()
+
+maint()

Интересные_кейсы/Table_X.py

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+a, b, c, d = int(input()), int(input()), int(input()), int(input())
+k = c
+print(" ", end="\t")
+
+while c != (d + 1):          # печатаем первую строку с изначальным табом)
+    print(c, end="\t")
+    c += 1
+    if c == (d + 1):          # переходим на следующую строку
+        print()
+
+while a != (b + 1):          # заполняем оставшиеся столбцы таблицы умножения
+    print(a, end="\t")
+    for w in range(k, c):
+        print(w * a, end="\t")
+    print()
+    a += 1

Интересные_кейсы/club_proga.py

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+import itertools
+
+def union(A, B):
+    return {a + b for a in A for b in B}
+teams = union('w', '12') | union('l', '0') | union('N', '3456789')
+
+import itertools
+from fractions import Fraction
+
+def Omega(p, k):
+    return {' '.join(comb) for comb in itertools.combinations(p, k)}
+
+omega = Omega(teams, 5)
+print(len(omega))
+A = {a for a in omega if a.count('w') == 1}
+print(len(A))
+# A - события, а Р - это вероятность событий
+
+def P(event, space):
+    return Fraction(len(event & space), len(space))
+
+print('P(A)=', P(A, omega))

Интересные_кейсы/Генераторы.py

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+print('----------9. Генераторы----------')
+print()
+print((i for i in range(100)), ' -> ')
+print('->', 'это объект-генератор, в котором просто есть range(100)')
+
+print('Тернарный оператор с условиями :')
+c = 1 if type('privet') == str else 500
+print('Итоговый ответ тут равен', c)
+
+print('Выражение посложнее :')
+b = (i if i > 30 else 1 / i for i in range(50) if i % 5 in [1, 4])
+
+for i in b:
+    print(i)
+
+print('Генератор словарей :')
+a = {i: i * 20 for i in range(10)}
+print(a)
+
+gen = [ъ for ъ in range(11)]
+print(gen)
+gen1 = [i for i in range(11) if i%3 == 0]
+print('Элементы, кратные 3:', gen1)
+gen1 = [1 if i%3 == 0 else 0 for i in range(11)] # 1 - если кратен трем, 0 - если не кратен
+print(gen1)
+gen2 = {i:i*'Сынба' for i in range(1,11)} # генератор словаря
+print(gen2)

Интересные_кейсы/Последовательность_скобочек.py

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+def is_correct_bracket_seq(seq):
+    r_brackets = 0
+    s_brackets = 0
+    braces = 0
+    for i in seq:
+        if i == '{':
+            braces += 1
+        if i == '}':
+            if braces == 0:
+                braces += 99
+            braces -= 1
+        if i == '[':
+            s_brackets += 1
+        if i == ']':
+            if s_brackets == 0:
+                s_brackets += 99
+            s_brackets -= 1
+        if i == '(':
+            r_brackets += 1
+        if i == ')':
+            if r_brackets == 0:
+                r_brackets += 99
+            r_brackets -= 1
+    if r_brackets + s_brackets + braces == 0:
+        print('True')
+    else:
+        print('False')
+
+
+def main():
+    sequence = input()
+    is_correct_bracket_seq(sequence)
+
+
+main()