2025-06-01 20:10:44 +09:00

7 lines
230 B
JavaScript

const n = Number(require("fs").readFileSync(0, "utf8").toString());
for(let i=1; i<=n; i++){
console.log(' '.repeat(n-i) + '*'.repeat(2*i-1));
}
for(let i=n-1; i>0; i--){
console.log(' '.repeat(n-i) + '*'.repeat(2*i-1));
}