Submission #42150

#	Time	Username	Problem	Language	Result	Execution time	Memory
42150		wasyl	Cezar (COCI16_cezar)	C++11	10 / 100	2 ms	608 KiB

cezar

#include <bits/stdc++.h>
#ifndef dbg
#define dbg(...)
#endif
#define st first
#define nd second
#define all(x) begin(x), end(x)
#define rsz(...) resize(__VA_ARGS__)
#define psh(...) push_back(__VA_ARGS__)
#define emp(...) emplace_back(__VA_ARGS__)
#define prt(...) print(cout, __VA_ARGS__)
#define dprt(...) dbg(print(cerr,__VA_ARGS__))
#define dmp(...) dprt(#__VA_ARGS__, '=', __VA_ARGS__)
using namespace std;using ll=long long;
template<typename t>using V=vector<t>;
template<typename t>void print(ostream& os, const t& a){os<<a<<'\n';}
template<typename t, typename... A>void print
(ostream& os, const t& a, A&&... b){os<<a<<' ';print(os, b...);}

int n, siz;
V< int > top;
V< V< int > > gr;
V< pair< int, string > > tab;

void gen (int lo, int hi, int v = 0)
{
    if (lo >= hi or v == siz)
        return;
    dprt(lo, hi);   
    string s;
    while (lo <= hi)
    {
        char c = tab[lo].nd[v]; 
        int poplo = lo;
        while (lo + 1 <= hi and tab[lo + 1].nd[v] == c) 
            ++lo;
        s += string(1, c);
        gen(poplo, lo, v + 1);
        ++lo;
    }
    
    for (int i = 1; i < s.size(); ++i)
        gr[s[i - 1] + 1 - 'a'].psh(s[i] + 1 - 'a');
    dprt(s);
}

inline bool topo ()
{
    int id = 0;
    V< int > deg(27);
    top.rsz(27);
    for (int i = 0; i < 27; ++i)
        for (int k : gr[i])
            ++deg[k];
    queue< int > Q;
    for (int i = 0; i < 27; ++i)
        if (deg[i] == 0)
            Q.push(i);
    while (!Q.empty())
    {
        int v = Q.front(); Q.pop();
        top[v] = id++;
        top.psh(v);
        for (int s : gr[v])
            if (--deg[s] == 0)
                Q.push(s);
    }
    return id == 27 and top[0] == 0;
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n;
    tab.rsz(n);
    gr.rsz(27);
    for (int i = 0; i < n; ++i)
        cin >> tab[i].nd;
    for (int i = 0; i < n; ++i)
        cin >> tab[i].st;

    sort(all(tab));

    for (auto& p : tab)
        siz = max(siz, (int)p.nd.size());
    for (auto& p : tab)
        p.nd.rsz(siz, 'a' - 1);
dbg(    
    for (auto& p : tab)
        dprt(p.nd);    
);
                
    gen(0, n - 1);
dbg(
    for (int i = 0; i < 27; ++i)
    {
        cerr << i << ": ";
        for (int s : gr[i])
            cerr << s << ' ';
        cerr << '\n';
    }
);

    if (topo())
    {
        prt("DA");
        for (int i = 1; i < 27; ++i)
            if (i != 0)
                cout << (char)(top[i] + 'a' - 1);
        cout << '\n';
    }
    else
        prt("NE");
}

Compilation message (stderr)

cezar.cpp: In function 'void gen(int, int, int)':
cezar.cpp:42:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 1; i < s.size(); ++i)
                       ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 10 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10