oj.uz

Submission #890602

# Submission time Handle Problem Language Result Execution time Memory
890602 2023-12-21T15:16:59 Z danglayloi1 Selling RNA Strands (JOI16_selling_rna) C++17
100 / 100
 256 ms 572076 KB 
#include <bits/stdc++.h>
#define ii pair<int, int>
#define fi first
#define se second
#define inf 0x3f3f3f3f
using namespace std;
using ll = long long;
const int nx=1e5+5;
const int N=2e6+5;
int getid(char c)
{
    if(c=='A')
        return 0;
    if(c=='C')
        return 1;
    if(c=='G')
        return 2;
    return 3;
}
int n, m;
string a[nx];
struct trie
{
    struct dak
    {
        int child[4], l, r;
        dak()
        {
            memset(child, -1, sizeof(child));
            l=inf, r=0;
        }
    } nod[N<<2];
    int cur;
    trie() : cur(0){};
    int new_node()
    {
        cur++;
        return cur;
    }
    void add(string s, int id)
    {
        int pos=0;
        for(int i = 0; i < s.size(); i++)
        {
            int c=getid(s[i]);
            if(nod[pos].child[c]==-1)
                nod[pos].child[c]=new_node();
            pos=nod[pos].child[c];
            nod[pos].l=min(nod[pos].l, id);
            nod[pos].r=max(nod[pos].r, id);
        }
    }
    ii get_range(string s)
    {
        int pos=0;
        for(int i = 0; i < s.size(); i++)
        {
            int c=getid(s[i]);
            if(nod[pos].child[c]==-1)
                return ii(-1, -1);
            pos=nod[pos].child[c];
        }
        return ii(nod[pos].l, nod[pos].r);
    }
} T;
struct rev_trie
{
    struct dak
    {
        int child[4];
        vector<int> ids;
        dak()
        {
            memset(child, -1, sizeof(child));
            ids.clear();
        }
    } nod[N<<2];
    int cur;
    rev_trie() : cur(0){};
    int new_node()
    {
        cur++;
        return cur;
    }
    void add(string s, int id)
    {
        int pos=0;
        for(int i = s.size()-1; i >= 0; i--)
        {
            int c=getid(s[i]);
            if(nod[pos].child[c]==-1)
                nod[pos].child[c]=new_node();
            pos=nod[pos].child[c];
            nod[pos].ids.emplace_back(id);
        }
    }
    int query(string s, ii f)
    {
        int pos=0;
        for(int i = s.size()-1; i >= 0; i--)
        {
            int c=getid(s[i]);
            if(nod[pos].child[c]==-1)
                return 0;
            pos=nod[pos].child[c];
        }
        int l=lower_bound(nod[pos].ids.begin(), nod[pos].ids.end(), f.fi)-nod[pos].ids.begin();
        int r=upper_bound(nod[pos].ids.begin(), nod[pos].ids.end(), f.se)-nod[pos].ids.begin();
        return r-l;
    }
} T1;
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin>>n>>m;
    for(int i = 1; i <= n; i++)
        cin>>a[i];
    sort(a+1, a+n+1);
    for(int i = 1; i <= n; i++)
    {
        T.add(a[i], i);
        T1.add(a[i], i);
    }
    while(m--)
    {
        string x, y;
        cin>>x>>y;
        ii cur=T.get_range(x);
        cout<<T1.query(y, cur)<<'\n';
    }
}

Compilation message

selling_rna.cpp: In member function 'void trie::add(std::string, int)':
selling_rna.cpp:43:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for(int i = 0; i < s.size(); i++)
      |                        ~~^~~~~~~~~~
selling_rna.cpp: In member function 'std::pair<int, int> trie::get_range(std::string)':
selling_rna.cpp:56:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for(int i = 0; i < s.size(); i++)
      |                        ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 177 ms 504464 KB Output is correct
2 Correct 115 ms 504400 KB Output is correct
3 Correct 114 ms 504400 KB Output is correct
4 Correct 115 ms 504424 KB Output is correct
5 Correct 116 ms 504672 KB Output is correct
6 Correct 113 ms 504520 KB Output is correct
7 Correct 113 ms 504404 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 256 ms 572076 KB Output is correct
2 Correct 235 ms 568724 KB Output is correct
3 Correct 155 ms 521712 KB Output is correct
4 Correct 154 ms 521488 KB Output is correct
5 Correct 178 ms 546568 KB Output is correct
6 Correct 183 ms 546992 KB Output is correct
7 Correct 146 ms 520056 KB Output is correct
8 Correct 209 ms 539984 KB Output is correct
9 Correct 195 ms 536156 KB Output is correct
10 Correct 168 ms 533780 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 124 ms 505932 KB Output is correct
2 Correct 121 ms 505624 KB Output is correct
3 Correct 122 ms 505676 KB Output is correct
4 Correct 122 ms 505552 KB Output is correct
5 Correct 122 ms 506012 KB Output is correct
6 Correct 130 ms 505844 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 177 ms 504464 KB Output is correct
2 Correct 115 ms 504400 KB Output is correct
3 Correct 114 ms 504400 KB Output is correct
4 Correct 115 ms 504424 KB Output is correct
5 Correct 116 ms 504672 KB Output is correct
6 Correct 113 ms 504520 KB Output is correct
7 Correct 113 ms 504404 KB Output is correct
8 Correct 256 ms 572076 KB Output is correct
9 Correct 235 ms 568724 KB Output is correct
10 Correct 155 ms 521712 KB Output is correct
11 Correct 154 ms 521488 KB Output is correct
12 Correct 178 ms 546568 KB Output is correct
13 Correct 183 ms 546992 KB Output is correct
14 Correct 146 ms 520056 KB Output is correct
15 Correct 209 ms 539984 KB Output is correct
16 Correct 195 ms 536156 KB Output is correct
17 Correct 168 ms 533780 KB Output is correct
18 Correct 124 ms 505932 KB Output is correct
19 Correct 121 ms 505624 KB Output is correct
20 Correct 122 ms 505676 KB Output is correct
21 Correct 122 ms 505552 KB Output is correct
22 Correct 122 ms 506012 KB Output is correct
23 Correct 130 ms 505844 KB Output is correct
24 Correct 222 ms 561176 KB Output is correct
25 Correct 240 ms 561388 KB Output is correct
26 Correct 217 ms 560212 KB Output is correct
27 Correct 153 ms 520964 KB Output is correct
28 Correct 228 ms 526600 KB Output is correct
29 Correct 163 ms 513092 KB Output is correct