From 99b56b295e9dc1845e460573c21c7c89d0edc68e Mon Sep 17 00:00:00 2001
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 <124675990+CrazyDuck192@users.noreply.github.com>
Date: Tue, 21 Mar 2023 19:55:19 +0200
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№12.1, 12.3, 12.4, 12.5, 12.21, 12.29
---
 12.21.txt       |   7 ++
 12.29.txt       |   5 ++
 12.4.txt        |  31 +++++++++
 classwork3.2.py |  97 ++++++++++++++++++++++++++
 classwork3.py   | 182 ++++++++++++++++++++++++++++++++++++++++++++++++
 classwork3.txt  |   1 +
 6 files changed, 323 insertions(+)
 create mode 100644 12.21.txt
 create mode 100644 12.29.txt
 create mode 100644 12.4.txt
 create mode 100644 classwork3.2.py
 create mode 100644 classwork3.py
 create mode 100644 classwork3.txt

diff --git a/12.21.txt b/12.21.txt
new file mode 100644
index 0000000..522758b
--- /dev/null
+++ b/12.21.txt
@@ -0,0 +1,7 @@
+12.05.2001
+07.10.1999
+21.11.2007
+05.05.1988
+17.12.1995
+01.07.2000
+05.06.2007
\ No newline at end of file
diff --git a/12.29.txt b/12.29.txt
new file mode 100644
index 0000000..683bbb0
--- /dev/null
+++ b/12.29.txt
@@ -0,0 +1,5 @@
+1 : ( 0 , 0 ), ( 10 , 5 )
+2 : ( -2 , 4 ), ( 6 , 6 )
+3 : ( 1 , 5 ), ( 5 , 6 )
+4 : ( -4 , -4 ), ( -2 , -2 )
+5 : ( -10 , 0 ), ( -5 , 3 )
\ No newline at end of file
diff --git a/12.4.txt b/12.4.txt
new file mode 100644
index 0000000..653cccf
--- /dev/null
+++ b/12.4.txt
@@ -0,0 +1,31 @@
+0.282571031647431
+0.20747292848594728
+0.10626211359387236
+0.05508497026102549
+0.03899772323117452
+0.027234641586775507
+0.019700517494515287
+0.015420632930758982
+0.012189487967336588
+0.00987790154445385
+0.00818927686802249
+0.006878076398963644
+0.0058684945340055535
+0.005065078184055967
+0.004406451915874586
+0.003881209593996607
+0.003439416960531805
+0.0030651994617201255
+0.0027553790609793957
+0.002487152664488468
+0.0022562174851901637
+0.0020567208477062253
+0.0018818174878085672
+0.0017287272357746257
+0.001593572269230383
+0.0014730930226836882
+0.0013666148033738728
+0.0012709194205720842
+0.0011845558093861255
+0.0011073942810778921
+0.0010371877975311303
diff --git a/classwork3.2.py b/classwork3.2.py
new file mode 100644
index 0000000..5f9d49b
--- /dev/null
+++ b/classwork3.2.py
@@ -0,0 +1,97 @@
+# Завдання 12.21
+print('Завдання 12.21')
+
+def dates(filename):
+    f = open(filename)
+    d = f.readlines()
+    d_list = []
+
+    for x in d:
+        d_list.append(x.strip().split('.'))
+    f.close()
+    
+    return d_list
+
+def task_a(d_list):
+    years = []
+
+    for date in d_list:
+        years.append(int(date[2]))
+    
+    return min(years)
+    
+def task_b(d_list):
+    spring_months = ['03', '04', '05']
+    spring_dates = []
+
+    for date in d_list:
+        if date[1] in spring_months:
+            spring_dates.append(date)
+        
+    return spring_dates
+
+def task_c(d_list):
+    year = max([int(x[2]) for x in d_list])
+    d = []
+
+    for date in d_list:
+        if int(date[2]) == year:
+            d.append(date)
+    d_list = d
+    if len(d_list) == 1:
+        return d_list[0]
+    
+    month = max([int(x[1]) for x in d_list])
+    d = []
+
+    for date in d_list:
+        if int(date[1]) == month:
+            d.append(date)
+    d_list = d
+    if len(d_list) == 1:
+        return d_list[0]
+    
+    day = max([int(x[0]) for x in d_list])
+    d = []
+    for date in d_list:
+        if int(date[0]) == day:
+            d.append(date)
+    return d[0]
+
+filename = 'exercises/12.21.txt'
+d_list = dates(filename)
+
+print(f'Найменший рік: {task_a(d_list)}\n')
+
+print('Весняні дати: ')
+for x in task_b(d_list):
+    print('.'.join(x))
+
+print(f'\nНайпізніша дата: {".".join(task_c(d_list))}')
+
+# Завдання 12.29
+print('\nЗавдання 12.29')
+
+def search_rect(filename):
+    f = open(filename)
+    rects = f.readlines()
+    rects_dict = {}
+    area_dict = {}
+
+    for rect in rects:
+        rects_dict[int(rect.split()[0])] = ((int(rect.split()[3]), int( rect.split()[5])), 
+            (int(rect.split()[8]), int(rect.split()[10])))
+
+    for number, coords in rects_dict.items():
+        area = abs(coords[0][0] - coords[1][0]) * abs(coords[0][1] - coords[1][1])
+        area_dict[number] = area
+    f.close()
+
+    area = max(area_dict.values())
+    for k, v in area_dict.items():
+        if v == area:
+            return (k, v)
+
+
+filename = 'exercises/12.29.txt'
+print(f'Прямокутник під номером {search_rect(filename)[0]} має площу {search_rect(filename)[1]}')
\ No newline at end of file
diff --git a/classwork3.py b/classwork3.py
new file mode 100644
index 0000000..4919f59
--- /dev/null
+++ b/classwork3.py
@@ -0,0 +1,182 @@
+from math import tan
+# Завдання 12.1
+print('Завдання 12.1\n')
+
+def calculate(x, filename):
+    f = open(filename)
+    nums = f.readline().split()
+    coef = len(nums) - 1
+    s = 0
+
+    for a in nums:
+        s += int(a)*x**coef
+        coef -= 1
+    f.close()
+
+    return s
+
+def diff(n, x, filename):
+    f = open(filename)
+    nums = f.readline().split()
+    coef = len(nums)
+    s = 0
+
+    for _ in range(n):
+        for i in range(coef):
+            coef -= 1
+            nums[i] = int(nums[i]) * coef
+            if nums[i] == 0:
+                del nums[i]
+        coef = len(nums)
+
+    coef = len(nums) - 1
+    for a in nums:
+        s += a*x**coef
+        coef -= 1
+    f.close()
+
+    return nums, s
+
+filename = 'exercises/classwork3.txt'
+s = calculate(3, filename)
+print(f'Значення многочлена у точці 3: {s}')
+
+df, s = diff(3, 3, filename)
+print(f'Похідна третього порядку: {df}')
+print(f'Значення похідної у точці 3: {s}')
+
+
+# Завдання 12.3
+print('\nЗавдання 12.3\n')
+
+def evens(filename):
+    f = open(filename)
+    nums = f.readline().split()
+    answer = []
+    for num in nums:
+        if int(num) % 2 == 0:
+            answer.append(int(num))
+    f.close()
+
+    return answer
+
+def squares(filename):
+    f = open(filename)
+    nums = f.readline().split()
+    answer = []
+    for num in nums:
+        if int(num) > 0:
+            if int(num) % 2 != 0 and int(num)**0.5 == int(int(num)**0.5):
+                answer.append(int(num))
+    f.close()
+
+    return answer
+
+def difference(filename):
+    f = open(filename)
+    nums = f.readline().split()
+    even = []
+    odd = []
+    for num in nums:
+        if int(num) % 2 == 0:
+            even.append(int(num))
+        else:
+            odd.append(int(num))
+    f.close()
+    
+    return max(even) - min(odd)
+
+def sequense(filename):
+    f = open(filename)
+    nums = f.readline().split()
+    length = len(nums)
+    seq = []
+    answer = 1
+
+    for i in range(length-1):
+        seq.append(nums[i])
+        j = i
+        while True:
+            if nums[j+1] <= nums[j]:
+                if len(seq) >= answer:
+                    answer = len(seq)
+                break
+            seq.append(nums[j+1])
+            j += 1
+        seq = []
+    f.close()
+
+    return answer
+
+s = evens(filename)
+print(f'Усі парні числа: {s}')
+
+s = squares(filename)
+print(f'Усі квадрати непарних чисел: {s}')
+
+s = difference(filename)
+print(f'Різниця між максимальним парним та мінімальним непарним числами: {s}')
+
+s = sequense(filename)
+print(f'Довжина найдовшої зростаючої послідовносі: {s}')
+
+# Завдання 12.4
+
+def array_1(filename, i):
+    f = open(filename, 'w')
+    f.write(' '.join(str(j) for j in range(1, i+1)))
+    f.close()
+
+def array_2(filename, i):
+    f = open(filename, 'w')
+    f.write(' '.join(str(j**2) for j in range(1, i+1)))
+    f.close()
+
+def array_3(filename, i):
+    f = open(filename, 'w')
+    nums = []
+
+    for j in range(1, i+1):
+        num = 1
+        while j != 0:
+            num *= j
+            j -= 1
+        nums.append(num)
+    f.write(' '.join(str(x) for x in nums))
+    f.close()
+
+def array_4(filename, i):
+    f = open(filename, 'w')
+    f.write(' '.join(str(2**(j+1)) for j in range(1, i+1)))
+    f.close()
+
+def array_5(filename, i):
+    f = open(filename, 'w')
+    f.write(' '.join(str(2**j + 3**(j+1)) for j in range(1, i+1)))
+    f.close()
+
+filename = 'exercises/12.4.txt'
+array_1(filename, 10)
+array_2(filename, 15)
+array_3(filename, 8)
+array_4(filename, 6)
+array_5(filename, 7)
+
+# Завдання 12.5
+def func(filename, eps):
+    f = open(filename, 'w')
+    nums = []
+    j = 0
+    x = 1
+
+    while True:
+        j += 1
+        x = (j-0.1)/(j**3 + abs(tan(2*j)))
+        if abs(x) < eps:
+            break
+        nums.append(x)
+    for x in nums:
+        f.write(f'{str(x)}\n')
+    f.close()
+
+func(filename, 0.001)
\ No newline at end of file
diff --git a/classwork3.txt b/classwork3.txt
new file mode 100644
index 0000000..7d012d5
--- /dev/null
+++ b/classwork3.txt
@@ -0,0 +1 @@
+2 3 4 9 1 -5 5 25 1 22 4 2 64 1
\ No newline at end of file