题目1388：跳台阶

#include <iostream>#include <algorithm>#include <queue>#include <vector>#include <cstring>#include <string>#include <string.h>#include <stdio.h>#include <cmath>#include <map>#include <functional>#include <set>using namespace std;//1388int main()  {      int n;      long long int a[71];      a[1] = 1;      a[2] = 2;      for(int i = 3; i < 71; i++)          a[i] = a[i - 1] + a[i - 2];       while(scanf("%d",&n) != EOF)      {          printf("%lld\n",a[n]);      }     } /**************************************************************    Problem: 1388    User: cust123    Language: C++    Result: Accepted    Time:0 ms    Memory:1520 kb****************************************************************/