More Problems

• Write a program to check if the sum of all elements in the first and last diagonals is a prime number.
• Write a program to calculate the product of all prime numbers in the matrix.
• Write a program to replace all diagonal elements with their reciprocal values.
• Write a program to replace all border elements with their logarithmic values.
• Write a program to print all diagonal elements in a square matrix that are divisible by both 3 and 7.
• Write a program to print all border elements that are divisible by both 5 and 11.
• Write a program to check if the matrix contains only multiples of 4 and 8.
• Write a program to print the matrix in zigzag order from top-left to bottom-right.