Side Diagonal

Statement

Given an integer n, create a two-dimensional array of size (n×n) and populate it as follows, with spaces between each character:

• The positions on the minor diagonal (from the upper right to the lower left corner) receive 1 .
• The positions above this diagonal recieve 0 .
• The positions below the diagonal receive 2 .

Print the elements of the resulting array

Solution

	#Problem : https://snakify.org/lessons/two_dimensional_lists_arrays/problems/secondary_diagonal/
	n = int(input())
	a=[[0 for x in range(n)]for y in range(n)]
	for i in range(n):
	for j in range(n):
	a[i][n-i-1]=1
	for y in range (n-i,n):
	a[i][y]=2
	print(a[i][j],end=" ")
	print('\n')

view raw Side diagonal.py hosted with ❤ by GitHub

 

The diagonal parallel to the main

Statement

Given an integer n$n$, produce a two-dimensional array of size (n×n)and complete it according to the following rules, and print with a single space between characters:

• On the main diagonal write 0 .
• On the diagonals adjacent to the main, write 1 .
• On the next adjacent diagonals write 2 and so forth.

Print the elements of the resulting array.

sample 

n=7

0 1 2 3 4 5 6 1 0 1 2 3 4 5 2 1 0 1 2 3 4 3 2 1 0 1 2 3 4 3 2 1 0 1 2 5 4 3 2 1 0 1 6 5 4 3 2 1 0

	n= int(input())
	b=[[abs(x-y) for x in range(n)]for y in range(n)]
	for i in range(n):
	for j in range(n):
	print(b[i][j],end=" ")
	print('\n')

view raw diagonal.py hosted with ❤ by GitHub

Chess Board

Given two numbers n and m. Create a two-dimensional array of size (n×m)and populate it with the characters "." and "*" in a checkerboard pattern. The top left corner should have the character "." 



above figure shows the main chess board pattern, note that "." means white and "*" means black

	n,m = map(int,input().split())
	b=[['. ' for x in range(m)]for y in range(n)]
	for i in range(n):
	for j in range(m):
	if(i%2==0 and j%2!=0):
	b[i][j]='* '
	elif(i%2!=0 and j%2==0):
	b[i][j]='* '
	for i in range(n):
	for j in range(m):
	print(b[i][j],end="")
	print('\n')

view raw chess board.py hosted with ❤ by GitHub