mirea-projects/First term/Informatics/IT-4.md
2024-09-24 02:22:33 +03:00

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# Рабочая тетрадь № 4
## Задачи № 1
### № 1
```math
AvB⇒A~B
a b f
0 0 0
1 1 1
0 1 0
1 0 0
A̅v¬(B~A)⊕B
a b f
0 0 1
1 1 1
1 0 0
0 1 1
AvB⇒C
a b c f
0 0 0 1
0 0 1 1
0 1 1 1
1 0 1 1
1 1 1 1
0 1 0 0
1 0 0 0
1 1 0 0
```
### № 2
```math
(4)
```
### № 3
```math
(2)
```
### № 4
```math
(4)
```
### № 5
```math
4
```
### № 6
```math
1 0 0 0
```
### № 7
```math
C, 2
```
## Тест № 3
1. 2 (Таблица истинности)
2. 1 (¬А&¬В)
3. 2 (Сергей)
4. 1 (¬A ¬B ¬C)
5. 4 (X Y Z)
6. 4 (2)
7. 3 (3)
8. 30
9. 10
10. M, B
## Задачи № 4
### № 1
```python
k = int(input())
n = int(input())
print(2 << k-1 + 2 << n-1)
```
### № 2
```python
n = int(input())
if (n > 0 and (n & (n - 1))) == 0:
print("Yes")
else:
print("No")
```
### № 3
```python
a = int(input())
k = int(input())
print(a | (1 << k))
```
### № 4
```python
n = int(input())
k = int(input())
ans = n & ~((1 << k) - 1)
print(ans)
print(bin(n & ~((1 << k) - 1)))
```