Submission #1267519

#	Time	Username	Problem	Language	Result	Execution time	Memory
1267519		quangykqh	Selling RNA Strands (JOI16_selling_rna)	C++20	35 / 100	588 ms	1114112 KiB

selling_rna

#include<bits/stdc++.h>
using namespace std;
const int MN=1e6+1209;
long long n,m,k,ans,a[MN],pos[MN],MIN;
string skibidi,sex;
struct trie
{
    struct Node2
    {
        int cnt;
        Node2 *child[5][5];
        Node2()
        {
            cnt=0;
            for(int i=0;i<5;i++)
                for(int j=0;j<5;j++)
                child[i][j]=NULL;
        }
    };
    Node2 *root=new Node2;
    Node2 *cur=root;
    void addstring(string& s,int id,bool split1,bool split2)
    {
        if(id==s.length())return;
        Node2 *cb=cur;
        if(!split1&&!split2)
        {
            if(!cur->child[pos[s[id]]][pos[s[s.length()-id-1]]])
                cur->child[pos[s[id]]][pos[s[s.length()-id-1]]]=new Node2;
            cur=cur->child[pos[s[id]]][pos[s[s.length()-id-1]]];
            cur->cnt++;
            addstring(s,id+1,false,false);
            cur=cb;
        }
        if((!split1&&!split2)||split1)
        {
            if(!cur->child[pos[s[id]]][0])
                cur->child[pos[s[id]]][0]=new Node2;
            cur=cur->child[pos[s[id]]][0];
            cur->cnt++;
            addstring(s,id+1,true,false);
            cur=cb;
        }
        if((!split1&&!split2)||split2)
        {
            if(!cur->child[0][pos[s[s.length()-id-1]]])
                cur->child[0][pos[s[s.length()-id-1]]]=new Node2;
            cur=cur->child[0][pos[s[s.length()-id-1]]];
            cur->cnt++;
            addstring(s,id+1,false,true);
            cur=cb;
        }
    }
    int  takeans(string &p,string &q)
    {
        cur=root;
        for(int i=0;i<p.length();i++)
        {
            if(!cur->child[pos[p[i]]][pos[q[i]]])return 0;
            cur=cur->child[pos[p[i]]][pos[q[i]]];
        }
        return cur->cnt;
    }
};
trie TRIE;
int main()
{
    if(fopen("GAME.INP","r"))
    {
        freopen("GAME.INP","r",stdin);
        freopen("GAME.OUT","w",stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>m;
    pos['A']=1;
    pos['C']=2;
    pos['U']=3;
    pos['G']=4;
    pos['#']=0;
    for(int i=1;i<=n;i++)
    {
        cin>>skibidi;
        TRIE.addstring(skibidi,0,false,false);
    }
    while(m--)
    {
        cin>>skibidi>>sex;
        if(skibidi.length()==0&&sex.length()==0)
        {
            cout<<n<<'\n';
            continue;
        }
        reverse(sex.begin(),sex.end());
        while(sex.length()<skibidi.length())
            sex.push_back('#');
        while(skibidi.length()<sex.length())
            skibidi.push_back('#');
        cout<<TRIE.takeans(skibidi,sex)<<'\n';
    }
}

Compilation message (stderr)

selling_rna.cpp: In function 'int main()':
selling_rna.cpp:70:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   70 |         freopen("GAME.INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
selling_rna.cpp:71:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |         freopen("GAME.OUT","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 25
• Subtask 3: 25 / 25
• Subtask 4: 0 / 40