답안 #994068

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
994068	2024-06-07T05:31:44 Z	vjudge1	Rima (COCI17_rima)	C++17	56 / 140	1000 ms	103612 KB

rima

#include <bits/stdc++.h>

using namespace std;

#define int long long

const int h = 727, mod = 1e9 + 7;
const int h1 = 7369, mod1 = 998244353;
const int enc = 8369, mod2 = 1LL<<36;
const int M = 3e6;

int pw[M],pw1[M];

inline int en(int has,int has1)
{
	return (has1*enc+has)%mod2;
}

signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(NULL),cout.tie(NULL);
	
	pw[0]=pw1[0]=1;
	for (int i=1;i<M;i++)
		pw[i]=pw[i-1]*h%mod,pw1[i]=pw1[i-1]*h1%mod1;
	int n;
	cin>>n;
	map<int,vector<string>> mp;
	for (int i=0;i<n;i++)
	{
		string s;
		cin>>s;
		mp[s.size()].push_back(s);
	}
	vector<string> v;
	for (auto i:mp)
		for (auto j:i.second)
			v.push_back(j);
	reverse(v.begin(),v.end());
	map<int,int> ans;
	while (!v.empty())
	{
		string s=v.back();
		v.pop_back();
		int hs=0,hs1=0,m=s.size();
		for (int i=1;i<m;i++)
		{
			hs=hs*h+s[i],hs1=hs1*h1+s[i];
			hs%=mod,hs1%=mod1;
		}
		int mx;
		if (ans.find(en(hs,hs1))!=ans.end())
			mx=ans[en(hs,hs1)]+1;
		else
			mx=1;
		vector<int> wht;
		for (int c='a';c<='z';c++)
		{
			pair<int,int> p={hs,hs1};
			p.first+=pw[m-1]*c%mod;
			p.second+=pw1[m-1]*c%mod1;
			p.first%=mod,p.second%=mod1;
			if (ans.find(en(p.first,p.second))!=ans.end())
				mx=max(mx,ans[en(p.first,p.second)]+1),wht.push_back(en(p.first,p.second));
			else if(c==s[0])
				wht.push_back(en(p.first,p.second));
				
		}
		for (int i:wht)
			ans[i]=mx;
	}
	int res=0;
	for (auto i:ans)
		res=max(res,i.second);
	cout<<res<<endl;
	
	return 0;
}

Subtask #1

56.0 / 140.0

#	결과	실행 시간	메모리	Grader output
1	Correct	28 ms	47196 KB	Output is correct
2	Correct	28 ms	47244 KB	Output is correct
3	Correct	29 ms	47188 KB	Output is correct
4	Execution timed out	1012 ms	103612 KB	Time limit exceeded
5	Correct	56 ms	55120 KB	Output is correct
6	Incorrect	42 ms	50144 KB	Output isn't correct
7	Incorrect	35 ms	49740 KB	Output isn't correct
8	Incorrect	34 ms	49288 KB	Output isn't correct
9	Incorrect	99 ms	57220 KB	Output isn't correct
10	Incorrect	34 ms	49344 KB	Output isn't correct