比赛 |
2024暑假C班集训D |
评测结果 |
AAAAAEEEEE |
题目名称 |
沼泽鳄鱼 |
最终得分 |
50 |
用户昵称 |
liuyiche |
运行时间 |
1.215 s |
代码语言 |
C++ |
内存使用 |
5.71 MiB |
提交时间 |
2024-07-13 09:14:01 |
显示代码纯文本
- #include <bits/stdc++.h>
-
- using namespace std;
-
- typedef long long ll;
-
- int n, m, s, t, nf;
- int mod = 10000;
- ll k;
- ll f[55][2005];
-
- struct node
- {
- vector<int> nxt;
- };
- vector<node> v(55);
-
- struct fish
- {
- int t;
- vector<int> re;
- };
- vector<fish> g(55);
-
- inline int dfs(int x, int time)
- {
- if(time > k)
- return 0;
- if(f[x][time] != -1)
- return f[x][time];
- for(int i = 1; i <= nf; ++i)
- if(g[i].re[time%g[i].t] == x)
- return f[x][time] = 0;
- if(x == t && time == k)
- return f[x][time] = 1;
- ll ans = 0;
- for(int i = 0; i < v[x].nxt.size(); ++i)
- ans = (ans+dfs(v[x].nxt[i],time+1))%mod;
- return f[x][time] = ans;
- }
-
- int main()
- {
- freopen("swamp.in", "r", stdin);
- freopen("swamp.out", "w", stdout);
-
- ios::sync_with_stdio(false);
- cin.tie(0); cout.tie(0);
-
- memset(f,-1,sizeof(f));
- cin >> n >> m >> s >> t >> k;
- for(int i = 1; i <= m; ++i)
- {
- int x, y;
- cin >> x >> y;
- v[x].nxt.push_back(y);
- v[y].nxt.push_back(x);
- }
- cin >> nf;
- for(int i = 1; i <= nf; ++i)
- {
- cin >> g[i].t;
- for(int j = 1; j <= g[i].t; ++j)
- {
- int p;
- cin >> p;
- g[i].re.push_back(p);
- }
- }
- cout << dfs(s,0);
-
- return 0;
- }
-