牛客题霸--跳台阶题解
跳台阶
http://www.nowcoder.com/questionTerminal/8c82a5b80378478f9484d87d1c5f12a4
算出前几项就可以找到此规律
class Solution {
public:
int jumpFloor(int number) {
int a[10010];
a[0] = 0, a[1] = 1, a[2] = 2;
for ( int i = 3; i < 10010; i++ ) a[i] = a[i-1] + a[i-2];
return a[number];
}
};