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- using System;
- using System.Collections.Generic;
- using System.Linq;
- namespace Problem_04
- {
- class Program
- {
- static void Main()
- {
- int[] sequenceOne = { 1, 3, 4, 5, 1, 0, 5 };
- int[] sequenceTwo = { 1, 2, 3, 4, 5, 6, 6 };
- int[] sequenceThree = { 1, 1, 1 };
- Console.WriteLine(GetIndexOfFirstElementLargerThanNeighbours(sequenceOne));
- Console.WriteLine(GetIndexOfFirstElementLargerThanNeighbours(sequenceTwo));
- Console.WriteLine(GetIndexOfFirstElementLargerThanNeighbours(sequenceThree));
- }
- static int GetIndexOfFirstElementLargerThanNeighbours(int[] testArr)
- {
- int index = -1;
- for (int i = 0; i < testArr.Length; i++)
- {
- if (i == 0)
- {
- if (testArr[i] > testArr[i + 1])
- {
- index = i;
- break;
- }
- }
- else if (i == testArr.Length - 1)
- {
- if (testArr[i] > testArr[i - 1])
- {
- index = i;
- break;
- }
- }
- else
- {
- if (testArr[i] > testArr[i - 1] && testArr[i] > testArr[i + 1])
- {
- index = i;
- break;
- }
- }
- }
- return index;
- }
- }
- }
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