{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"wyc上课需要走n阶台阶,因为他腿比较长,所以每次可以选择走一阶或者走两阶,那么他一共有多少种走法?"}},{"title":"input","value":{"format":"HTML","content":"输入包含一个整数n (1 ≤ n ≤ 44)"}},{"title":"output","value":{"format":"HTML","content":"输出一个整数,即可以走的方法数。"}},{"title":"Sample Input ","value":{"format":"HTML","content":"3"}},{"title":"Sample Output ","value":{"format":"HTML","content":"3"}}]}