// 其实是Fibonacci数列 function rectCover(number) { // write code here if(number < 3) return number; let tmp1 = 1, tmp2 = 2, tmp = 0; for(let i=2; i<number; i++) { tmp = tmp2; tmp2 = tmp1 + tmp2; tmp1 = tmp; } return tmp2; } for(let i=1; i<11; i++) console.log(rectCover(i));