Given a 2D square matrix, print the matrix in a spiral order. Refer to examples for more details. From an interview's point of view, after you scan the matrix in a 2D array, try to print the matrix in a spiral order without using any extra space.Input FormatThe first line of input contains T - the number of test cases. The first line of each test case contains N - the size of the matrix [NxN]. It is followed by N lines each containing N integers - matrix elements.Output FormatFor each test case, print the matrix in a spiral order, separated by newline.Constraints1 <= T <= 1001 <= N <= 100-100 <= ar[i][j] <= 100ExampleInput41121 24 331 2 38 9 47 6 55-44 25 -52 69 -517 22 51 27 -44-79 28 -78 1 -4765 -77 -14 -21 -6-96 43 -21 -20 90Output11 2 3 41 2 3 4 5 6 7 8 9-44 25 -52 69 -5 -44 -47 -6 90 -20 -21 43 -96 65 -79 17 22 51 27 1 -21 -14 -77 28 -78
Question
Given a 2D square matrix, print the matrix in a spiral order. Refer to examples for more details. From an interview's point of view, after you scan the matrix in a 2D array, try to print the matrix in a spiral order without using any extra space.Input FormatThe first line of input contains T - the number of test cases. The first line of each test case contains N - the size of the matrix [NxN]. It is followed by N lines each containing N integers - matrix elements.Output FormatFor each test case, print the matrix in a spiral order, separated by newline.Constraints1 <= T <= 1001 <= N <= 100-100 <= ar[i][j] <= 100ExampleInput41121 24 331 2 38 9 47 6 55-44 25 -52 69 -517 22 51 27 -44-79 28 -78 1 -4765 -77 -14 -21 -6-96 43 -21 -20 90Output11 2 3 41 2 3 4 5 6 7 8 9-44 25 -52 69 -5 -44 -47 -6 90 -20 -21 43 -96 65 -79 17 22 51 27 1 -21 -14 -77 28 -78
Solution 1
The problem is asking to print the elements of a 2D square matrix in a spiral order. The input consists of multiple test cases. Each test case starts with an integer N, which is the size of the matrix. Then, N lines follow, each containing N integers, which are the elements of the matrix. The output should be the elements of the matrix printed in a spiral order.
Here is a step-by-step solution in Python:
def spiralPrint(m, n, a) :
k = 0; l = 0
while (k < m and l < n) :
for
Solution 2
The problem is asking to print the elements of a 2D square matrix in a spiral order. Here is a step-by-step solution in Python:
- First, we need to define the boundaries of the matrix: top, bottom, left, and right. Initially,
Similar Questions
Write a Python program to print spiral matrix for a given matrix.
Spiral MatrixWrite a Python program to print spiral matrix for a given matrix.Constraints:1<R<101<C<10Example:23number of elements in the array:6elements of array:-1 2 3 4 5 61 2 3 6 5 4 Explanation:NAPublic Test Cases:# INPUT EXPECTED OUTPUT1 2 3 1 2 3 4 5 61 2 3 6 5 4
Given a 2D square matrix, rotate it by 90 degrees clockwise.Note:Try to solve it by first scanning the matrix, then doing an in-place rotation, and then printing the rotated matrix.Input FormatThe first line of input contains T - the number of test cases. The first line of each test case contains the N - the size of the matrix [NxN]. It is followed by N lines each containing N integers - matrix elements.Output FormatFor each test case, print the rotated matrix, separated by a new line.Constraints1 <= T <= 1001 <= N <= 100-100 <= ar[i][j] <= 100ExampleInput41121 24 331 2 38 9 47 6 55-44 25 -52 69 -517 22 51 27 -44-79 28 -78 1 -4765 -77 -14 -21 -6-96 43 -21 -20 90OutputTest Case #1:1Test Case #2:4 13 2Test Case #3:7 8 16 9 25 4 3Test Case #4:-96 65 -79 17 -4443 -77 28 22 25-21 -14 -78 51 -52-20 -21 1 27 6990 -6 -47 -44 -5
Write a program to print Transpose of a matrix.First, take as input the number of cells of a square Matrix.Next, n inputs will be "n" columns separated by space for each row
Given a 2D matrix of size NxN, print the sum of the elements of all its diagonals.Input FormatThe first line of input contains T - the number of test cases. The first line of each test case contains the N - the size of the matrix. Each of the next N lines contains N integers - the elements of the matrix.Output FormatFor each test case, print the sum of the elements of all the diagonals, separated by a new line. Refer to samples for more clarity.Constraints1 <= T <= 1001 <= N <= 100-100 <= ar[i][j] <= 100ExampleInput43-5 0 42 8 -63 7 11-425 -2-4 16-2 -3 -6 -5 50 38 7 10 -5 -3 306 3 70 9 -20 -7-9 9 -6 7 3 2-1 7 7 6 -4 38 5 6 -9 40 8Output4 -6 4 9 3-4-2 6 -43 80 -15 -29 22 86 51 13 4 4 8ExplanationTest Case 1Sum of the elements of the 1st diagonal: 4Sum of the elements of the 2nd diagonal: 0 + -6 = -6Sum of the elements of the 3rd diagonal: -5 + 8 + 1 = 4Sum of the elements of the 4th diagonal: 2 + 7 = 9Sum of the elements of the 5th diagonal: 3Test Case 2Sum of the elements of the 1st and only diagonal: -4Test Case 3Sum of the elements of the 1st diagonal: -2Sum of the elements of the 2nd diagonal: 5 + 1 = 6Sum of the elements of the 3rd diagonal: -4
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