[백준] 2798 Node.js

const fs = require('fs');
const input = fs.readFileSync("/dev/stdin").toString().trim().split("\n");

const [N, M] = input[0].split(" ").map(Number);
let arr = input[1].split(" ").map(Number);

arr = arr.sort((a, b) => a-b)
let result = 0;
let sum = 0;
for (let i = 0; i < N; i++) {
    for (let j = i+1; j < N; j++) {
        for (let k = j+1; k < N; k++) {
            sum = arr[i] + arr[j] + arr[k];
            if(M-sum >=0 && result <= sum) {
                result = sum
            }
        }
    }
}
console.log(result)