Question

Which of the following strings P is a Python program.
(b) P = “def f(x): x = 'am I a Python program?'”
(d) P = “def f(x,y,z): return y”

(e) P = “def f(x): return y”

For each of the following Python programs P and input strings I, give the output P(I),

1. (f) P = “def f(x): return str(len(x+x+'x'))”, I = “GAGAT”

2. (g) P = “def f(x): return str(len(x))”, I=P

3. (h) P = “def f(x): return str(1/int(x))”, I = “0”

Answer 1

b,d,e are all valid python programs

def f(x): x = 'am I a Python program?'

def a(x, y, z): return y

def g(x): return x

print(a(4, 5, 6))

print(g(4))

output:

f)

def f(x): return str(len(x+x+'x'))

print(f("GAGAT"))

# will return 11 because x+x+'x'= GAGATGAGATx and its length is 11

output:

g)

def f(x): return str(len(x))

print(f("def f(x): return str(len(x))"))

there are 28 characters in P

output:

h)

it will give runtime error as we doing 1/0 which is dividing by zero