Submission #641171

#	Time	Username	Problem	Language	Result	Execution time	Memory
641171		Tenis0206	Password (RMI18_password)	C++14	50 / 100	449 ms	456 KiB

password

#include <bits/stdc++.h>

//#define home

using namespace std;

int query(string s);

#ifdef home

string str;

int query(string s)
{
    int j = 0;
    for(int i=0; i<s.size(); i++)
    {
        while(j<str.size() && s[i]!=str[j])
        {
            ++j;
        }
        if(j==str.size())
        {
            return i;
        }
        ++j;
    }
    return s.size();
}

#endif // home

string s[205];

struct cmp
{
    bool operator()(int a, int b)
    {
        return s[a].size() < s[b].size();
    }
};

string Merge(string a, string b)
{
    int i = 0, j = 0;
    string rez;
    while(i<a.size() && j<b.size())
    {
        string aux = rez + a[i];
        for(int p=j; p<b.size(); p++)
        {
            aux.push_back(b[p]);
        }
        int nr = query(aux);
        if(nr==aux.size())
        {
            rez.push_back(a[i]);
            ++i;
        }
        else
        {
            rez.push_back(b[j]);
            ++j;
        }
    }
    while(i<a.size())
    {
        rez.push_back(a[i]);
        ++i;
    }
    while(j<b.size())
    {
        rez.push_back(b[j]);
        ++j;
    }
    return rez;
}

priority_queue<int,vector<int>,cmp> h;

string guess(int n, int cr)
{
    int cnt = 0;
    for(int c='a'; c<='a'+cr-1; c++)
    {
        string aux;
        for(int j=1; j<=n; j++)
        {
            aux.push_back(c);
        }
        int nr = query(aux);
        ++cnt;
        for(int j=1; j<=nr; j++)
        {
            s[cnt].push_back(c);
        }
        if(s[cnt].size() > 0)
        {
            h.push(cnt);
        }
    }
    while(h.size() > 1)
    {
        int poz1 = h.top();
        h.pop();
        int poz2 = h.top();
        h.pop();
        s[poz1] = Merge(s[poz1],s[poz2]);
        h.push(poz1);
    }
    return s[h.top()];
}

#ifdef home

int main()
{
    cin>>str;
    cout<<guess(str.size(),4)<<'\n';
    return 0;
}

#endif // home

Compilation message (stderr)

password.cpp: In function 'std::string Merge(std::string, std::string)':
password.cpp:47:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     while(i<a.size() && j<b.size())
      |           ~^~~~~~~~~
password.cpp:47:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     while(i<a.size() && j<b.size())
      |                         ~^~~~~~~~~
password.cpp:50:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for(int p=j; p<b.size(); p++)
      |                      ~^~~~~~~~~
password.cpp:55:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         if(nr==aux.size())
      |            ~~^~~~~~~~~~~~
password.cpp:66:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |     while(i<a.size())
      |           ~^~~~~~~~~
password.cpp:71:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     while(j<b.size())
      |           ~^~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20