题解 | #坐标移动#

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

void (async function () {
  const actionMap = {
    A: (point, step) => (point[0] -= step),
    D: (point, step) => (point[0] += step),
    W: (point, step) => (point[1] += step),
    S: (point, step) => (point[1] -= step),
  };
  while ((line = await readline())) {
    const p = [0, 0];
    line
      .split(";")
      .filter((item) => /^[ADWS]\d{1,2}$/.test(item))
      .map((item) => item.match(/([ADWS])(\d+)/).slice(1, 3))
      .forEach((action) => actionMap[action[0]](p, +action[1]));

    console.log(p.join(","));
  }
})();