Learning Python-Basic course: Day 7, Exercises and coding challenges⚔️

Welcome 🖐️ Today's agenda is solving more interesting questions! ❤️ intricate patterns and mind-blowing sequences ✨

Let us now today solve some more questions 😀 on while loops and for loops. 😁 We will look at 2-3 sample questions followed by exercises and a coding challenge ⚔️.

Sample questions-

1) Write a program to print Fibonacci numbers.

a=0 b=1 print('0,1,',end="") for i in range(0,10): a,b=b,b+a print(b,end=",") 

Simultaneous assignment of values
Note the second last line. This is the Python syntax for simultaneous assignment. This is equivalent to using a temp variable like-

temp=a a=b b=b+temp 

This python shortcut comes very very handy while swapping two numbers to

2) Write a program to display times table from 1-10

for i in range(1,11): for j in range(1,11): print(i,"*",j,"=",j*i) print() 

OUTPUT-

1 * 1 = 1 1 * 2 = 2 1 * 3 = 3 1 * 4 = 4 1 * 5 = 5 1 * 6 = 6 1 * 7 = 7 1 * 8 = 8 1 * 9 = 9 1 * 10 = 10 2 * 1 = 2 2 * 2 = 4 2 * 3 = 6 2 * 4 = 8 2 * 5 = 10 2 * 6 = 12 2 * 7 = 14 2 * 8 = 16 2 * 9 = 18 2 * 10 = 20 . . . . for numbers upto 10 

What such a small amount of code can do in seconds took us years to learn...🤩

Exercises-

1)- Modify the factorial program we did in day 4 to error check for zero and negative numbers.(using if-else) Answer

2)Write a program to give the following output. Answer

1 121 12321 1234321 

3) Write a program to display perfect numbers from a range entered by a user (include 0).

Coding challenges-⚔️
1) Write a program to display terms of this infinite pattern until 50.

1, 2,2,3,3, 4,4,4,5,5,5,6,6,6, 7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,..... 

Comment your answers below. Let's see who can solve tis one. 🗡️🛡️ Beware, it is harder than it seems....😉

Answer to this question will be given in tomorrow's session. 🤞 So stay tuned by following me for updates 👍. Please like and comment below 😊