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Submission #867180

# Submission time Handle Problem Language Result Execution time Memory
867180 2023-10-27T20:07:48 Z HoriaHaivas Parametriziran (COCI19_parametriziran) C++14
110 / 110
 604 ms 16380 KB 
/*
    "care a facut teste cu Lattice reduction attack e ciudat"
    "linistiti va putin"
    - 2023 -
*/
#include<bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#warning ai grija la ? ca l ai transformat in {
#pragma GCC optimize("Ofast")

using namespace std;

const int mod=1e9+9;
const int base=29;

string s[50001];
vector<int> hashcount[(1<<6)];

int main()
{
    ifstream fin(".in");
    ofstream fout(".out");
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int i,j,n,m,ans,mask,hashbuild,mask2;
    bool ok;
    cin >> n >> m;
    for (j=1; j<=n; j++)
    {
        cin >> s[j];
        for (i=0; i<s[j].size(); i++)
        {
            if (s[j][i]=='?')
                s[j][i]='{';///urmatorul caracter dupa z
        }
        for (mask=1; mask<(1<<(m)); mask++)
        {
            hashbuild=0;
            for (i=0; i<s[j].size(); i++)
            {
                if (mask&(1<<i))
                    hashbuild=((hashbuild*base)%mod+(s[j][i]-'a'+1))%mod;
            }
            hashcount[mask].push_back(hashbuild);
        }
    }
    for (i=0;i<(1<<m);i++)
         sort(hashcount[i].begin(),hashcount[i].end());
    ans=0;
    for (j=1; j<=n; j++)
    {
        mask=0;
        for (i=0; i<s[j].size(); i++)
        {
            if (s[j][i]!='{')
            {
                mask=mask|(1<<i);
            }
        }
        if (mask!=0)
        {
            for (mask2=0; mask2<=mask; mask2++)
            {
                ok=true;
                for (i=0; i<s[j].size() && ok; i++)
                {
                    if ((mask2&(1<<i)) && !(mask&(1<<i)))
                        ok=false;
                }
                if (ok)
                {
                    hashbuild=0;
                    for (i=0; i<s[j].size(); i++)
                    {
                        if (mask&(1<<i))
                        {
                            if (mask2&(1<<i))
                                hashbuild=((hashbuild*base)%mod+('{'-'a'+1))%mod;
                            else
                                hashbuild=((hashbuild*base)%mod+(s[j][i]-'a'+1))%mod;
                        }
                    }
                    ans+=(lower_bound(hashcount[mask].begin(),hashcount[mask].end(),hashbuild+1)-lower_bound(hashcount[mask].begin(),hashcount[mask].end(),hashbuild));
                }
            }
        }
        else
        {
            ans+=n;
        }
    }
    cout << (ans-n)/2;
    return 0;
}

Compilation message

parametriziran.cpp:9:2: warning: #warning ai grija la ? ca l ai transformat in { [-Wcpp]
    9 | #warning ai grija la ? ca l ai transformat in {
      |  ^~~~~~~
parametriziran.cpp: In function 'int main()':
parametriziran.cpp:33:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for (i=0; i<s[j].size(); i++)
      |                   ~^~~~~~~~~~~~
parametriziran.cpp:41:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |             for (i=0; i<s[j].size(); i++)
      |                       ~^~~~~~~~~~~~
parametriziran.cpp:55:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for (i=0; i<s[j].size(); i++)
      |                   ~^~~~~~~~~~~~
parametriziran.cpp:67:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |                 for (i=0; i<s[j].size() && ok; i++)
      |                           ~^~~~~~~~~~~~
parametriziran.cpp:75:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |                     for (i=0; i<s[j].size(); i++)
      |                               ~^~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 2392 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2648 KB Output is correct
2 Correct 11 ms 2396 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2776 KB Output is correct
2 Correct 26 ms 2776 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 2904 KB Output is correct
2 Correct 23 ms 2908 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 3532 KB Output is correct
2 Correct 38 ms 3672 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 5272 KB Output is correct
2 Correct 38 ms 4964 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 191 ms 7464 KB Output is correct
2 Correct 51 ms 5976 KB Output is correct

Subtask #8
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 287 ms 7992 KB Output is correct
2 Correct 169 ms 8516 KB Output is correct

Subtask #9
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 428 ms 12644 KB Output is correct
2 Correct 118 ms 10464 KB Output is correct

Subtask #10
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 604 ms 16380 KB Output is correct
2 Correct 379 ms 16256 KB Output is correct