delete pics to save space

2.11210.cpp

@@ -0,0 +1,107 @@
+#include<bits/stdc++.h>
+using namespace std;
+const string type[34]=
+{
+	"1T", "2T", "3T", "4T", "5T", "6T", "7T", "8T", "9T",
+	"1S", "2S", "3S", "4S", "5S", "6S", "7S", "8S", "9S",
+	"1W", "2W", "3W", "4W", "5W", "6W", "7W", "8W", "9W",
+	"DONG", "NAN", "XI", "BEI", "ZHONG", "FA", "BAI"
+};
+map<string,int> id;
+char s[10];
+vector<string> mahjong,finish;
+vector<string> temp;
+int cnt[34];
+bool cmp(const string &s1,const string &s2)
+{ return id[s1]<id[s2]; }
+bool DFS()
+{
+	if(temp.size()==0) return true;
+	if(temp[0]==temp[1]&&temp[0]==temp[2])
+	{
+		temp.erase(temp.begin(),temp.begin()+3);
+		return DFS();
+	}
+	if(temp[0][0]<'1'||temp[0][0]>'7') return false;
+	int pos1=-1,pos2=-1;
+	for(int i=0;i<temp.size();i++)
+	{
+		if(id[temp[i]]==id[temp[0]]+1) pos1=i;
+		if(id[temp[i]]==id[temp[0]]+2) pos2 = i;
+	}
+	if(pos1==-1||pos2==-1) return false;
+	temp.erase(temp.begin()+pos2);
+	temp.erase(temp.begin()+pos1);
+	temp.erase(temp.begin());
+	return DFS();
+}
+bool judge(int x)
+{
+	finish.clear();
+	finish.push_back(type[x]);
+	for(int i=0;i<mahjong.size();i++)
+		finish.push_back(mahjong[i]);
+	sort(finish.begin(),finish.end(),cmp);
+	int i=0;
+	while(i<finish.size())
+	{
+		bool flag=false;
+		while(i+1<finish.size()&&finish[i]==finish[i+1])
+		{
+			flag=true;
+			i++;
+		}
+		if(flag)
+		{
+			temp.clear();
+			for(int j=0;j<finish.size();j++)
+				if(j<i-1||j>i) temp.push_back(finish[j]);
+			if(DFS()) return true;
+		}
+		i++;
+	}
+	return false;
+}
+void input()
+{
+	mahjong.clear();
+	mahjong.push_back(s);
+	memset(cnt,0,sizeof(cnt));
+	cnt[id[s]]++;
+	for(int i=1;i<13;i++)
+	{
+		scanf("%s",s);
+		mahjong.push_back(s);
+		cnt[id[s]]++;
+	}
+}
+void solve()
+{
+	bool ans=false;
+	for(int i=0;i<34;i++)
+	{
+		if(cnt[i]<4&&judge(i))
+		{
+			if(ans) printf(" ");
+			else ans=true;
+			printf("%s",type[i].begin());
+		}
+	}
+	if(!ans) printf("Not ready");
+	printf("\n");
+}
+int Case;
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	for(int i=0;i<34;i++) id[type[i]]=i;
+	while(scanf("%s",s)&&s[0]!='0')
+	{
+		input();
+		printf("Case %d: ",++Case);
+		solve();
+	}
+	return 0;
+}