More Problems

• Find the sum of the boundary elements of a 2D matrix.
• Check if an array is monotonic (either entirely non-increasing or non-decreasing).
• Count the number of prime numbers in an array.
• Find the greatest common divisor (GCD) of all elements in an array.
• Find the least common multiple (LCM) of all elements in an array.
• Find the sum of elements in an array until a negative number is encountered.
• Replace all even numbers in an array with their square.
• Replace all odd numbers in an array with their cube.