int[] arr = new int[] { 1, 2, 3 }; int sum = 0; for (int i = 0; i < arr.Length; i++) { sum += arr[i]; } int[] arr = { 3, 6, 4, 1, 6, 8 }; // returns 1 Array.IndexOf(arr, 6); int maxValue = anArray.Max(); int maxIndex = anArray.ToList().IndexOf(maxValue);
int[] numbers = new int[] { 10, 30, 50, 40, 60, 20, 70, 90, 80, 100 }; int total = (from num in numbers select num).Sum();