Function initTabu

javascript/0494-target-sum.js:136–148

(nums, total)

};

var initTabu = (nums, total) => {
    const tabu = new Array(nums.length)
        .fill() /* Time O(N) | Space O(N) */
        .map(() =>
            new Array((total + 1) << 1).fill(0),
        ); /* Time O(M) | Space O(M) */
    const [left, right] = [total + nums[0], total - nums[0]];

    tabu[0][left] = 1; /*          | Space O(N * M) */
    tabu[0][right] += 1; /*          | Space O(N * M) */

    return tabu;
};

var search = (nums, total, tabu) => {
    for (let i = 1; i < nums.length; i++) {