1 /*
2 找规律:看看前10项就能看出规律,打个表就行了。被lld坑了一次:(
3 */
4 #include <cstdio>
5 #include <algorithm>
6 #include <iostream>
7 #include <cstring>
8 #include <cmath>
9 #include <string>
10 #include <vector>
11 #include <queue>
12 #include <map>
13 #include <set>
14 #include <ctime>
15 #include <cstdlib>
16 using namespace std;
17
18 typedef long long ll;
19 const int MAXN = 1e2 + 10;
20 const int INF = 0x3f3f3f3f;
21 ll dp[MAXN];
22
23 void solve(void)
24 {
25 dp[1] = dp[2] = dp[3] = 1;
26 dp[4] = dp[5] = 2; dp[6] = 3;
27 for (int i=7; i<=100; ++i)
28 {
29 dp[i] = dp[i-1] + dp[i-5];
30 }
31 }
32
33 int main(void) //UVALive 6506 Padovan Sequence
34 {
35 // freopen ("G.in", "r", stdin);
36
37 solve ();
38 int t; scanf ("%d", &t);
39 while (t--)
40 {
41 int n; scanf ("%d", &n);
42 printf ("%lld\n", dp[n]);
43 }
44
45 return 0;
46 }
找规律 UVALive 6506 Padovan Sequence
原文:http://www.cnblogs.com/Running-Time/p/4592480.html