O(n) Simple C# solution

  • 0

    Simple and readable solution

        public int[] TwoSum(int[] numbers, int target) {
            for(int i=0,j=numbers.Length-1;i<j;)
                int sum = numbers[i] + numbers[j];
                if(sum == target) return new int[] {++i, ++j};
                else if(sum < target) i++;
                else j--;
            return new int[]{0,0};

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