More Problems

• Check if all elements in an array are powers of two.
• Count the number of distinct elements in a 2D array.
• Find the longest sequence of consecutive even numbers in an array.
• Find the longest sequence of consecutive odd numbers in an array.
• Check if an array contains consecutive integers.
• Find the number of elements that appear an odd number of times in an array.
• Find the number of elements that appear an even number of times in an array.
• Replace all prime numbers in an array with -1.