The result for appending magic numbers from 1 to 100 is,
magic number series: 0 1 1 10 2 19 3 28 4 37 5 46 6 55 7 64 8 73 9 82 10 91 11 100
To solve this, we will follow the below approaches −
Solution 1
Create list comprehension to append 1 to 100 values to list ls.
ls = [i for i in range(1,101)]
Apply lambda filter function to store the values divisible by 9 results is 1.
l = list(filter(lambda i:i%9==1,ls))
Create a series from the list l.
pd.Series(l)
Example
Let’s see the below code to get a better understanding,
import pandas as pd
ls = [i for i in range(1,101)]
l = list(filter(lambda i:i%9==1,ls))
print("magic number series:\n",pd.Series(l))Output
magic number series: 0 1 1 10 2 19 3 28 4 37 5 46 6 55 7 64 8 73 9 82 10 91 11 100
Solution 2
Create an empty list
Set for loop range from 1 to 101 and set digit_sum as 0
for i in range(1,101): digit_sum = 0
Assign i values to temporary value so that i value can’t be changed.
Set while loop condition as temp>0
Calculate remainder and digit_sum as follows,
while(temp>0): rem = temp % 10 digit_sum = digit_sum + rem temp = temp // 10
Finally set if condition to check the digit_sum value either 1 or 10. If it is true then append the values to the list
if(digit_sum==1 or digit_sum==10): l.append(i)
Finally, generate a series from the list.
Example
Let’s check the following code to get a better understanding −
import pandas as pd
l = []
for i in range(1,101):
digit_sum = 0
temp = i
while(temp>0):
rem = temp % 10
digit_sum = digit_sum + rem
temp = temp // 10
if(digit_sum==1 or digit_sum==10):
l.append(i)
print("magic number series:\n",pd.Series(l))Output
magic number series: 0 1 1 10 2 19 3 28 4 37 5 46 6 55 7 64 8 73 9 82 10 91 11 100