Last Updated: 25 Nov, 2020

Crazy Numbers

Easy

Asked in companies

Problem statement

The first line contains ‘T’, denoting the number of test cases.

Each test case contains a single integer ‘N’, denoting the number of rows.

For each test case, print the integers denoting the required pattern in the following ‘N’ lines.

You are not required to print the expected output; it has already been taken care of. Just implement the function.

1 <= T <= 10
1 <= N <= 500

Time Limit: 1 sec

The key here is to traverse all the lines sequentially, and for each line, we print the required character at the given index.

The steps are as follows:

We will define matrix ‘ans’ to store the final pattern.
We will initialize a variable ‘k’ to 1, which will be the starting value for the pattern.
We will iterate over all the rows, i.e., i = 0 to i = N - 1:
- We will run a for loop starting from j = N - i -1 with the condition that j is less than or equal to N:
  - If k is greater than 9, we will insert the value in the matrix ‘ans’.
  - Otherwise, we will reset the value of k to 1 and then insert the value in the matrix ‘ans’.
We will return the matrix ‘ans’ as the final answer.