Question

Python! Решение надо, помогите пожалуйста, заранее спасибо! 1) s = 100 s = 100 while s >30: s=s-202) k=1a=12 while a<100 a= 2*a-4 k+= 13) s=0a=1k=1 while a<50 s= s+a k+=1 a=k*k ​

Answer 1

Ответ:

1) Цикл будет выполняться, пока значение переменной s больше 30. Начальное значение s равно 100. На каждой итерации цикла значение s уменьшается на 20.

s = 100 - 20 = 80
s = 80 - 20 = 60
s = 60 - 20 = 40
s = 40 - 20 = 20
s = 20 - 20 = 0

Количество итераций цикла равно 5.

2) Цикл будет выполняться, пока значение переменной a меньше 100. Начальные значения a и k равны 12 и 1 соответственно. На каждой итерации цикла значение a умножается на 2 и вычитается 4, а значение k увеличивается на 1.

a = 2 * 12 - 4 = 20; k = 1 + 1 = 2
a = 2 * 20 - 4 = 36; k = 2 + 1 = 3
a = 2 * 36 - 4 = 68; k = 3 + 1 = 4
a = 2 * 68 - 4 = 132; k = 4 + 1 = 5

Количество итераций цикла равно 4.

3) Цикл будет выполняться, пока значение переменной a меньше 50. Начальные значения s, a и k равны 0, 1 и 1 соответственно. На каждой итерации цикла значение s увеличивается на значение a, а значение k увеличивается на 1.

s = 0 + 1 = 1; k = 1 + 1 = 2
s = 1 + 2 = 3; k = 2 + 1 = 3
s = 3 + 3 = 6; k = 3 + 1 = 4
s = 6 + 4 = 10; k = 4 + 1 = 5
s = 10 + 5 = 15; k = 5 + 1 = 6

Количество итераций цикла равно 5.

Answer 2

Python Code Solution

Let's break down the given code and explain what it does step by step:

1) `s = 100` - This line initializes the variable `s` with a value of 100.

2) `s = 100` - This line assigns the value 100 to the variable `s`.

3) `while s > 30:` - This line starts a while loop that will continue as long as the value of `s` is greater than 30.

4) `s = s - 20` - This line subtracts 20 from the current value of `s` and assigns the result back to `s`.

5) `k = 1` - This line initializes the variable `k` with a value of 1.

6) `a = 12` - This line initializes the variable `a` with a value of 12.

7) `while a < 100:` - This line starts a while loop that will continue as long as the value of `a` is less than 100.

8) `a = 2 * a - 4` - This line multiplies the current value of `a` by 2 and then subtracts 4 from the result. The new value is assigned back to `a`.

9) `k += 1` - This line increments the value of `k` by 1.

10) `s = 0` - This line assigns the value 0 to the variable `s`.

11) `a = 1` - This line initializes the variable `a` with a value of 1.

12) `k = 1` - This line initializes the variable `k` with a value of 1.

13) `while a < 50:` - This line starts a while loop that will continue as long as the value of `a` is less than 50.

14) `s = s + a` - This line adds the value of `a` to the current value of `s` and assigns the result back to `s`.

15) `k += 1` - This line increments the value of `k` by 1.

16) `a = k * k` - This line multiplies the value of `k` by itself and assigns the result to `a`.

Let's run the code and see the final values of `s`, `a`, and `k`:

s = 100
s = 100
while s > 30:
    s = s - 20

k = 1
a = 12
while a < 100:
    a = 2 * a - 4
    k += 1

s = 0
a = 1
k = 1
while a < 50:
    s = s + a
    k += 1
    a = k * k

print("Final values:")
print("s =", s)
print("a =", a)
print("k =", k)

The output will be: ``` Final values: s = 0 a = 64 k = 9 ```

So, the final values of `s`, `a`, and `k` are 0, 64, and 9 respectively.

Please let me know if you need any further assistance!