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| const findSumBetter = (arr, weight) => {
let hashtable = {};
for (let i = 0, arrLength = arr.length; i < arrLength; i++) {
let currentElement = arr[i];
let difference = weight - currentElement;
if (hashtable[currentElement] != undefined) {
return [i, hashTable[currentElement]];
} else {
hashtable[difference] = i;
}
}
return -1;
};
|