lizncu

Java

class Solution {
  public int[] twoSum(int[] nums, int target) {
    for (int i = 0; i < nums.length; i++) {
      for (int j = i + 1; j < nums.length; j++) {
        if (nums[i] + nums[j] == target) {
          return new int[] {i, j};
        }
      }
    }

    throw new IllegalArgumentException("No two sum solution");
  }
}