Submission #156255

#	Time	Username	Problem	Language	Result	Execution time	Memory
156255		mdn2002	Cezar (COCI16_cezar)	C++14	0 / 100	3 ms	632 KiB

cezar

#include<bits/stdc++.h>
using namespace std;
long long mod=1e9+7;
vector<string>v,an;
vector<int>gr[10004];
vector<char>ans;
int n,d[105],vis[10004];
bool dt[30];
void dfs(int x)
{
    ans.push_back('a'+(x-1));
    dt[x-1]=true;
    vis[x]=1;
    for(int i=0; i<gr[x].size(); i++)
    {
        int u=gr[x][i];
        if(vis[u]==1)
        {
            cout<<"NE";
            exit(0);
        }
        else if(vis[u]==0)dfs(u);
    }
    vis[x]=2;
}
int main()
{
    cin>>n;
    for(int i=0; i<n; i++)
    {
        string s;
        cin>>s;
        v.push_back(s);
    }
    for(int i=0; i<n; i++)
    {
        cin>>d[i];
        an.push_back(v[d[i]-1]);
    }
    for(int i=0; i<n-1; i++)
    {
        int x=0;
        for(int j=i+1; j<n; j++)
        {
            while(an[i][x]==an[j][x])
            {
                x++;
                if(x>=an[i].size()||x>=an[j].size())
                {
                    if(an[i].size()>an[j].size())
                    {
                        cout<<"NE";
                        return 0;
                    }
                    break;
                }
            }
        }
        if(x<an[i].size()&&x<an[i+1].size())gr[(an[i][x]-'a')+1].push_back((an[i+1][x]-'a')+1);
    }
    dfs(an[0][0]-'a'+1);
    cout<<"DA"<<endl;
    for(int i=0; i<26; i++)
    {
        if(dt[i]==false)ans.push_back('a'+i);
    }
    for(int i=0; i<26; i++)
    {
        cout<<ans[i];
        if(i==19)cout<<endl;
    }
}
/*
2
abc
ab
1 2
*/

Compilation message (stderr)

cezar.cpp: In function 'void dfs(int)':
cezar.cpp:14:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<gr[x].size(); i++)
                  ~^~~~~~~~~~~~~
cezar.cpp: In function 'int main()':
cezar.cpp:48:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(x>=an[i].size()||x>=an[j].size())
                    ~^~~~~~~~~~~~~~
cezar.cpp:48:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(x>=an[i].size()||x>=an[j].size())
                                     ~^~~~~~~~~~~~~~
cezar.cpp:59:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(x<an[i].size()&&x<an[i+1].size())gr[(an[i][x]-'a')+1].push_back((an[i+1][x]-'a')+1);
            ~^~~~~~~~~~~~~
cezar.cpp:59:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(x<an[i].size()&&x<an[i+1].size())gr[(an[i][x]-'a')+1].push_back((an[i+1][x]-'a')+1);
                            ~^~~~~~~~~~~~~~~

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