[JS] 백준 2444번 / 별 찍기 - 7 / 심화 1

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문제

2444번: 별 찍기 - 7

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정답

let fs = require("fs");
let filePath = process.platform === "linux" ? "/dev/stdin" : "test.txt";

let N = Number(fs.readFileSync(filePath).toString());

for (let i = 1; i < N; i++) {
  let blank = " ".repeat(N - i);
  let star = "*".repeat(i + (i - 1));

  console.log(blank + star);
}

for (let j = N; j > 0; j--) {
  let blank = " ".repeat(N - j);
  let star = "*".repeat(j + (j - 1));

  console.log(blank + star);
}

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