제출 #156250

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
156250		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;
        while(an[i][x]==an[i+1][x])x++;
        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];
}

컴파일 시 표준 에러 (stderr) 메시지

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++)
                  ~^~~~~~~~~~~~~

• Subtask 1: 0 / 10
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