38. 连续出牌数量

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
});
let numbers = [];
let colors = [];
rl.on('line', (line) => {
    if(!numbers.length) {
        numbers = line.split(' ');
    } else if(!colors.length) {
        colors = input.split(' ');
        const cards = new Array(numbers.length).fill(1);
        let mx = 0;
        for(let i=0; i<numbers.length; i++) {
            cards[i] = 0;
            mx = Math.max(dfs(numbers, colors, numbers[i], colors[i], cards), mx);
            cards[i] = 1;
        }
        console.log(mx);
    }
});

function dfs(nubmers, colors, last_num, last_color, cards) {
    let deep = 0;
    for(let i=0; i<cards.length; i++) {
        if (cards[i] !== 0) {
            if(numbers[i] === last_num || colors[i] === last_color) {
                cards[i] = 0;
                deep = Math.max(dfs(numbers, colors, numbers[i], colors[i], cards), deep);
                cards[i] = 1;
            }
        }
    }
    return deep+1;
}