题解 | 数颜色

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void (async function () {
    // Write your code here
    while ((line = await readline())) {
        const arr = [0, 0, 0];
        for (let i = 0; i < line.length; i++) {
            const char = line[i]
            if (char=== "R") {
                arr[0] = ++arr[0];
            } else if (char=== "G") {
                arr[1] = ++arr[1];
            }else{
                arr[2] = ++arr[2];
            }
        }
        console.log("("+arr.join(",")+")")
    }
})();