public class Solution { //懂我意思吧,斜眼笑^_^ public int JumpFloorII(int target) { if(target == 0) return 0; return 1<<(target-1); } }
public class Solution { //懂我意思吧,斜眼笑^_^ public int JumpFloorII(int target) { if(target == 0) return 0; return 1<<(target-1); } }