public class Solution { public int jumpFloorII(int target) { if(target == 1) return 1;
int num = 1;
for(int i = target-1;i > 0;i--) {
num += jumpFloorII(i);
}
return num;
}
}
public class Solution { public int jumpFloorII(int target) { if(target == 1) return 1;
int num = 1;
for(int i = target-1;i > 0;i--) {
num += jumpFloorII(i);
}
return num;
}
}