oj.uz

Submission #201124

# Submission time Handle Problem Language Result Execution time Memory
201124 2020-02-09T11:48:50 Z SamAnd Cezar (COCI16_cezar) C++17
10 / 100
 7 ms 424 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 102;

int n;
string a[N];
string b[N];
int u[N];

vector<int> g[26];

int c[26];

bool dfs(int x)
{
    c[x] = 1;
    for (int i = 0; i < g[x].size(); ++i)
    {
        int h = g[x][i];
        if (c[h] == 1)
            return false;
        if (!c[h])
        {
            if (!dfs(h))
                return false;
        }
    }
    c[x] = 2;
    return true;
}

vector<int> v;
void dfs1(int x)
{
    c[x] = 1;
    for (int i = 0; i < g[x].size(); ++i)
    {
        int h = g[x][i];
        if (!c[h])
            dfs1(h);
    }
    v.push_back(x);
}

char ans[33];

int main()
{
    //freopen("input.txt", "r", stdin);
    cin >> n;
    for (int i = 1; i <= n; ++i)
        cin >> b[i];
    for (int i = 1; i <= n; ++i)
        cin >> u[i];
    for (int i = 1; i <= n; ++i)
    {
        a[i] = b[u[i]];
    }
    for (int i = 1; i <= n; ++i)
    {
        for (int j = i + 1; j <= n; ++j)
        {
            bool z = true;
            if (a[i].size() <= a[j].size())
                continue;
            for (int k = 0; k < a[j].size(); ++k)
            {
                if (a[j][k] != a[i][k])
                {
                    z = false;
                    break;
                }
            }
            if (z)
            {
                cout << "NE" << endl;
                return 0;
            }
        }
    }
    for (int i = 1; i <= n; ++i)
    {
        for (int j = i + 1; j <= n; ++j)
        {
            for (int k = 0; ; ++k)
            {
                if (k == a[i].size())
                    break;
                if (a[i][k] != a[j][k])
                {
                    g[a[j][k] - 'a'].push_back(a[i][k] - 'a');
                    break;
                }
            }
        }
    }
    for (int i = 0; i < 26; ++i)
    {
        if (!c[i])
        {
            if (!dfs(i))
            {
                cout << "NE" << endl;
                return 0;
            }
        }
    }
    memset(c, 0, sizeof c);
    for (int i = 25; i >= 0; --i)
    {
        if (!c[i])
        {
            dfs1(i);
        }
    }
    for (int i = 0; i < 26; ++i)
        ans[v[i]] = i + 'a';
    cout << "DA" << endl;
    cout << ans << endl;
    return 0;
}

Compilation message

cezar.cpp: In function 'bool dfs(int)':
cezar.cpp:17:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[x].size(); ++i)
                     ~~^~~~~~~~~~~~~
cezar.cpp: In function 'void dfs1(int)':
cezar.cpp:36:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[x].size(); ++i)
                     ~~^~~~~~~~~~~~~
cezar.cpp: In function 'int main()':
cezar.cpp:66:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int k = 0; k < a[j].size(); ++k)
                             ~~^~~~~~~~~~~~~
cezar.cpp:87:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if (k == a[i].size())
                     ~~^~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 376 KB Output is correct
2 Correct 7 ms 424 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -