package com.kunal;

public class Max {

public static void main(String[] args) {

int[] arr = {1, 3, 2, 9, 18};

System.out.println(maxRange(arr, 1, 3));

}

// work on edge cases here, like array being null

static int maxRange(int[] arr, int start, int end) {

if (start > end) {

return -1;

}

if (arr == null) {

return -1;

}

int maxVal = arr[start];

for (int i = start; i <= end; i++) {

if (arr[i] > maxVal) {

maxVal = arr[i];

}

}

return maxVal;

}

static int max(int[] arr) {

if (arr.length == 0) {

return -1;

}

int maxVal = arr[0];

for (int i = 1; i < arr.length; i++) {

if (arr[i] > maxVal) {

maxVal = arr[i];

}

}

return maxVal;

}

}