homework_12.11.2021

12.11.2021
#1
def f(x, y, z):
    return (x and z) or (x and (not y) and (not z))

print('x y z f')
for x in [0, 1]:
    for y in [0, 1]:
        for z in [0, 1]:
            print(x, y, z, int(f(x, y, z)))

#2
a = 4 ** 16 + 2 ** 36 - 8
a = bin(a)[2:]
print(a)
ans = 0
for i in range(len(a)):
    if a[i] == '1':
        ans += 1

print(ans)

#3
a = 8 ** 255 + 2 ** 255 + 22 - 1
a = bin(a)[2:]
ans = 0
for i in range(len(a)):
    if a[i] == '1':
        ans += 1
#print(a)
print(ans)

#4
a = 4 ** 2010 + 2 ** 5050 - 31
a = bin(a)[2:]
ans = 0
for i in range(len(a)):
    if a[i] == '1':
        ans += 1

print(ans)