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public class Solution {

public int[] twoSum(int[] numbers, int target) {

int[] res = new int[2];

if(numbers == null || numbers.length <= 1) return res;

int i = 0;

int j = numbers.length-1;

while(i<j){

if(numbers[i]+numbers[j] == target){

res[0] = i+1;

res[1] = j+1;

return res;

} else if(numbers[i]+numbers[j] > target){

j--;

} else{

i++;

}

}

return res;

}

}