More Problems

• Write a program to print all the elements of the matrix that are divisible by both 9 and 12.
• Write a program to count how many prime elements are there in the first diagonal.
• Write a program to count how many composite elements are there in the second diagonal.
• Write a program to check if the matrix contains only prime numbers in the top-left quadrant.
• Write a program to check if the matrix contains only composite numbers in the bottom-right quadrant.
• Write a program to replace all diagonal elements with the sum of their row indices.
• Write a program to replace all border elements with the sum of their column indices.
• Write a program to print the matrix in diagonal zigzag order starting from the top-right corner.