For & while

Question 1

[0]
[0, 1]
[0, 1, 2]
[0, 1, 2, 3]
[0, 1, 2, 3, 4]
[0, 1, 2, 3, 4, 5]
[0, 1, 2, 3, 4, 5, 6]
[0, 1, 2, 3, 4, 5, 6, 7]

k many times
int(input(‘k: ‘)

Answer 1

n = 1

for i in range(int(input(‘k:’))):
print(list(i for i in range(0, n)))
n += 1

Question 2

Print:[0,1,4,9,16] with while loop (predefined variable)

Answer 2

n = int(input(“Provide an integer: “))

i = 0

while i < n :
print(i**2)
i += 1

Question 3

Print:[0,1,4,9,16] with while loop (predefined variable + result)

Answer 3

n = int(input(“Provide an integer”))

i = 0

while i < n:
result =i **2
print(result)
i += 1

Question 4

Print:[0,1,4,9,16] with for loop

Answer 4

number = (int(input(“Provide an integer”))

for i in range(1, number + 1):
square = i ** 2
print(square)

Question 5

Print: [25] as 5 to the 5th with while loop

Answer 5

n = 6
i = 1

while i <= n:
result =i **2
i += 1

print(result)

Question 6

Print:[49] as 7 to the 7th with for loop

Answer 6

n = 7

for i in range(1, n + 1):
square = i ** 2

print(square)

Question 7

Print: while loop
The sum of the numbers starting from 1 to n is: 1
The sum of the numbers starting from 1 to n is: 3
The sum of the numbers starting from 1 to n is: 6
The sum of the numbers starting from 1 to n is: 10
The sum of the numbers starting from 1 to n is: 15
The sum of the numbers starting from 1 to n is: 21
The sum of the numbers starting from 1 to n is: 28
The sum of the numbers starting from 1 to n is: 36
The sum of the numbers starting from 1 to n is: 45

Answer 7

n = 9

result = 0
i = 1

while i <= n:
result += i
i += 1

print(f"The sum of the numbers starting from 1 to n is: {result} ")

Question 8

Print:
The sum of the numbers starting from 1 to n is: 45

Answer 8

n = 9

result = 0
i = 1

while i <= n:
result += i
i += 1

print(f”The sum of the numbers starting from 1 to n is: {result} “)

Question 9

Print: while : FACTORIAL
The sum of the numbers starting from 1 to n is: 120

Answer 9

n = 5

result = 1
i = 1

while i <= n:
result *= i
i += 1

print(f”The sum of the numbers starting from 1 to n is: {result} “)

Question 10

Print: row = 5
1
1
2
1
2
3
1
2
3
4
1
2
3
4
5

Answer 10

row = 5

for i in range(1, row + 1, 1):
for j in range(1, i + 1):
print(j)

Question 11

Print: row = 5
1
1 2
1 2 3
1 2 3 4
12 3 4 5

Answer 11

row = 5

for i in range(1, row + 1, 1):
for j in range(1, i + 1):
print(j, end=’ ‘)
print(“”)

Question 12

Print: row = 5
1 1 2 1 2 3 1 2 3 4 1 2 3 45

Answer 12

row = 5

for i in range(1, row + 1, 1):
for j in range(1, i + 1):
print(j, end=’ ‘)

Question 13

Print: row = 5
5
4
3
2
1
4
3
2
1
3
2
1
2
1
1

Answer 13

row = 5

for i in range(0, row + 1):
for j in range(row-i, 0, -1):
print(j, end=’ ‘)
print(‘ ‘)

Question 14

Print: row = 5

5 4 3 21
4 3 2 1
3 2 1
2 1
1

Answer 14

row = 5

for i in range(0, row + 1):
for j in range(row-i, 0, -1):
print(j, end=’ ‘)
print(‘ ‘)

Question 15

Print: row = 5

5 4 3 2 1 4 3 2 1 3 2 1 2 11

Answer 15

row = 5

for i in range(0, row + 1):
for j in range(row-i, 0, -1):
print(j, end=’ ‘)

Question 16

Print:

1
22
333
4444
55555
666666
7777777
88888888
999999999

Answer 16

for i in range(1, 10):
for j in range(0, i):
print(i, end=’ ‘)
print(‘ ‘)

Question 17

Print:

1
22
333
4444
55555
666666
7777777
88888888
999999999

Answer 17

for i in range(1,10):
print(”%d” % i * i)

Question 18

Print:
*
**
*
**
***
**
***
**
***
****

Answer 18

for i in range(1,10):
print(”*” * i)

Question 19

Print Fibonacci sequence to 34: with for loop
0, 1, 1, 2, 3, 5, 8, 13, 21,34

Answer 19

num1 = 0
num2 = 1

print(‘Fibonacci sequence: ‘)

for i in range(10):
print(num1, end=’ ‘)
res =num1 + num2

num1 = num2
num2 = res

Question 20

Print:
red apple
red banana
red cherry
big apple
big banana
big cherry
tasty apple
tasty banana

Answer 20

adj = [“red”, “big”, “tasty”]
fruits = [“apple”, “banana”, “cherry”]

for x in adj:
for y in fruits:
print(x, y)

Question 21

Print(ls) ; n1=2, n2=14
[2,4,6,8,10,12,14]

Answer 21

n1 = 2
n2 = 14

ls = []
for i in range(n1, n2 + 1):
if i % 2== 0:
ls.append(i)
print(ls)

Question 22

Print(ls) ; n1=2, n2=14

[2]
[2, 4]
[2, 4, 6]
[2, 4, 6, 8]
[2, 4, 6, 8, 10]
[2, 4, 6, 8, 10, 12]
[2, 4, 6, 8, 10, 12, 14]

Answer 22

n1 = 2
n2 = 14

ls = []
for i in range(n1, n2 + 1):
if i % 2== 0:
ls.append(i)
print(ls)

Question 23

Print(i) ; n1=2, n2=14,
2 4 6 8 10 12 14

Answer 23

n1 = 2
n2 = 14

ls = []
for i in range(n1, n2 + 1):
if i % 2== 0:
ls.append(i)
print(i, end=’ ‘)

Question 24

Print(i) ; n1=2, n2=14,
2 3 4 5 6 7 8 9 10 11 12 13 14

Answer 24

n1 = 2
n2 = 14

ls = []
for i in range(n1, n2 + 1):
if i % 2== 0:
ls.append(i)
print(i, end=’ ‘)

Question 25

Print: 0,1,2,3,4,5,6,7,8,9,10 with while

Answer 25

i = 0

while i < 11:
print(i, end=’ ‘)
i += 1

Question 26

Print: 1,2,3,4,5,6,7,8,9,10 with while

Answer 26

i = 0

while i < 11:
i += 1
print(i, end=’ ‘)

Question 27

Print: for - Res:2
2
4
6
8
10
12
14
16
18
20

Answer 27

result = 2

for i in range(10):
k = result * i
print(k)
Nullatol kezdi - miért?

Question 28

Print: Factorial with for loop
720 as factorial of 6 (num = 6)

Answer 28

num = 6
result = 1

for i in range(1, num + 1):
result = result *i
print(result)

Question 29

Print: 22 as sum of 1-6 (num = 6)

Answer 29

num = 6
result = 1

for i in range(1, num + 1):
result = result + i
print(result)

Question 30

Print if given number if PRIME

Answer 30

num = int(input(“Provide an integer: “))

if num == 1:
print(num, “is not a prime number”)
elif num > 1:
for i in range(2,num):
if (num % i) == 0:
print(num,”is not a prime number”)
break
else:
print(num,”is a prime number”)

else:
    print(num,"is not a prime number")

Question 31

Print:
[1,3,6,10,15,21,28]

Answer 31

n = 7

result = 0

for i in range(1, n + 1):
result += i
print(result)

Question 32

Print: 28 - as sum of 0-7

Answer 32

n = 7

result = 0

for i in range(1, n + 1):
result += i
print(result)

Question 33

Provide an integer: 8
[6, 4, 6, 7, 8]

Answer 33

ls = []

for _ in range(5):
n = int(input(“Adj meg egy számot: “))
ls.append(n)
print(ls)

Question 34

5 times random number between 0 - 20 in a list

Answer 34

import random

ls = []

for i in range(5):
n = random.randint(0,20)
ls.append(n)
print(ls)

Question 35

Print: [‘change’, ‘change’, ‘change’] - as per the len of a precreated list

Answer 35

ls = [7,23,2]

for i in range(len(ls)):
ls[i] = “change”
print(ls)

Question 36

Print: 1 # 2 # 3 # 4 # 5

Answer 36

print(1, 2, 3, 4, 5, sep=” # “)

Question 37

1
2
3

1
2
3
4

1
2
3
4
5

Answer 37

row = 5

for i in range(3, row+1):
for j in range(1, i+1):
print(j)
print(‘ ‘)

Question 38

Fibonacci list until a given number:

Answer 38

num1 = 0
num2 = 1

given = int(input(‘Provide the number until you would like to see the Fibonacci list: ‘))

while num1 <= given:
print(num1)
num3 = num1 + num2
num1 = num2
num2 = num3

Question 39

for loop:
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9

Answer 39

for x in range(3):
for y in range (1, 10):
print(y, end=’ ‘)
print(‘ ‘)

Question 40

Given: rows, columns, symbol.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >

Answer 40

rows = int(input(‘Enter no of rows: ‘))
columns = int(input(‘Enter no of columns: ‘))
symbol = input(‘Enter a symbol to use: ‘)

for x in range(rows):
for y in range (columns):
print(symbol, end=’ ‘)
print(‘ ‘)

Question 41

Check if num 10 is prime

Answer 41

num = 10

for i in range(2, num):
if num % i:
print(‘Not prime’)
break
else:
print(‘Prime’)

Question 42

for else - if divisible by 5

nums = [10,16,18,21,25]

Answer 42

nums = [10,16,18,21,25]

for num in nums:
if num % 5 == 0:
print(num)
break

else:
print(‘not found’)