find subarray with given sum
import java.sql.Array;
import java.util.ArrayList;
import java.util.Arrays;
public class FindSubArr {
public static void main(String[] args) {
int [] arr = {0,1,2,3,4,5,6,9,2,1,1,1,10,2,2,2};
int s = 6 ;
int [] sub = findLongestSubArray( arr,s);
System.out.println("longest SubArray Range ==> "+Arrays.toString(sub));
}
public static int[] findLongestSubArray(int [] arr, int s){
int[] result = new int[]{-1};
int sum=0,left=0,right=0;
while(right < arr.length){
sum += arr[right];
while(left < right && sum > s){
sum -= arr[left++];
}
if(sum == s && (result.length == 1 || result[1] - result[0] < right - left)){
result = new int[]{left + 1, right +1};
}
right++;
}
return result;
}
}