Topic: array-problem / Level: beginner

• 201. Find the minimum element in an array that is greater than a given value x.
• 202. Check if the sum of the elements in an array is odd or even.
• 203. Count the number of subarrays where all elements are odd.
• 204. Find the number of elements in an array that are multiples of both 3 and 5.
• 205. Find the longest subarray that contains no negative elements.
• 206. Find the maximum sum of elements in a subarray of size k.
• 207. Count how many times each distinct element appears in an array.
• 208. Check if two arrays are permutations of each other.
• 209. Find the maximum absolute difference between two elements in an array.
• 210. Find the element in an array that is closest to a given number x.
• 211. Check if an array is the reverse of another array.
• 212. Find the longest subarray where the sum of elements is less than a given value x.
• 213. Split an array into two subarrays such that the difference between their sums is minimized.
• 214. Find the smallest prime number greater than a given element in an array.
• 215. Find the largest composite number smaller than a given element in an array.
• 216. Check if all elements in an array are powers of two.
• 217. Count the number of distinct elements in a 2D array.
• 218. Find the longest sequence of consecutive even numbers in an array.
• 219. Find the longest sequence of consecutive odd numbers in an array.
• 220. Check if an array contains consecutive integers.
• 221. Find the number of elements that appear an odd number of times in an array.
• 222. Find the number of elements that appear an even number of times in an array.
• 223. Replace all prime numbers in an array with -1.
• 224. Find the largest prime factor of each element in an array.
• 225. Check if all elements in an array are perfect squares.
• 226. Find the sum of all perfect square numbers in an array.
• 227. Count how many times the minimum element appears in an array.
• 228. Find the number of elements in an array that are divisible by their index.
• 229. Find the number of elements in an array that are divisible by the index of the element after them.
• 230. Find the row in a 2D array that has the most negative numbers.
• 231. Find the largest sum of any k consecutive elements in an array.
• 232. Find the smallest product of any k consecutive elements in an array.
• 233. Count how many elements in an array are divisible by either 3 or 7.
• 234. Find the row in a 2D matrix where all elements are positive.
• 235. Check if an array contains more even numbers than odd numbers.
• 236. Find the sum of all elements in an array that are perfect cubes.
• 237. Count the number of subarrays where the sum of elements is even.
• 238. Find the largest contiguous subarray with all elements greater than a given number x.
• 239. Find the sum of elements at prime indices in an array.
• 240. Find the product of elements at non-prime indices in an array.
• 241. Find the number of subarrays whose product is odd.
• 242. Find the number of subarrays whose product is even.
• 243. Find the sum of the middle three elements of an array.
• 244. Check if an array contains any duplicate consecutive elements.
• 245. Check if the first half of an array is a mirror image of the second half.
• 246. Find the sum of all prime numbers at even indices in an array.
• 247. Find the number of elements in an array that are multiples of a given value n.
• 248. Check if an array is sorted in strictly decreasing order.
• 249. Count the number of prime elements in each row of a 2D array.
• 250. Find the row with the most prime numbers in a 2D matrix.

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