#### Two Sum

Given an array of integers and a target value, return the indices of the two numbers in the array that add up to the target value.

#### Problem

```Given an array of integers, return the indices of the two numbers such that they add up to a specific target.
Input: [2, 7, 11, 15], target = 9
Output: [0, 1]```

#### Solution

This solution is in JavaScript. Our A.I. can create solutions in multiple languages.
by kayakane
```// Solution:
// The optimal solution is to use a hash table to store the numbers in the array as keys and their indices as values.
// Then, we can iterate through the array and check if the target minus the current number is in the hash table.
// If it is, we return the indices of the current number and the target minus the current number.
// This solution is optimal because it has a time complexity of O(n) and a space complexity of O(n).

function twoSum(nums, target) {
const hashTable = {};
for (let i = 0; i < nums.length; i++) {
hashTable[nums[i]] = i;
}
for (let i = 0; i < nums.length; i++) {
const complement = target - nums[i];
if (hashTable[complement] && hashTable[complement] !== i) {
return [i, hashTable[complement]];
}
}
}

console.log(twoSum([2, 7, 11, 15], 9)); // [ 0, 1]
console.log(twoSum([3, 2, 4], 6)); // [1, 2]
console.log(twoSum([3, 3], 6)); // [0, 1]```

A.I. Evaluation of the Solution

The candidate's solution is correct and demonstrates a level of completeness. The candidate's approach is also correct. The candidate's solution has a time complexity of O(n) and a space complexity of O(n).

Evaluated at: 2022-11-25 04:16:04