oj.uz

Submission #133380

# Submission time Handle Problem Language Result Execution time Memory
133380 2019-07-20T13:03:45 Z forelax Cezar (COCI16_cezar) C++14
10 / 100
 4 ms 496 KB 
#include<bits/stdc++.h>
using namespace std;
bool pref(string a,string b){
    int sm=min(a.length(),b.length());
    string acut=a.substr(0,sm);
    string bcut=b.substr(0,sm);
    if(acut==bcut&&a.length()<b.length())return true;
    return false;
}
vector<vector<int> > ng(26);
bool good=true;
vector<int> visited(26);
vector<int> visiting(26);
vector<int> ord;
void dfs(int a){
    if(visiting[a]){
        good=false;
        return;
    }
    visiting[a]=true;
    for(int i = 0 ; i < ng[a].size() ; i ++){
        int b=ng[a][i];
        if(visited[b])continue;
        dfs(b);
        if(!good)return;
    }
    ord.push_back(a);
    visited[a]=true;
}
int main(){
    int n;
    cin>>n;
    vector<string> a(n),b(n);
    for(int i = 0 ; i < n ; i ++)
        cin>>a[i];
    for(int i = 0 , j; i < n ; i ++){
        cin>>j;j--;
        b[i]=a[j];
    }
    for(int i = 0 ; i < n ; i ++){
        for(int j = 0 ; j < i ; j ++){
            if(pref(b[i],b[j])){
                cout<<"NE";
                return 0;
            }
        }
    }
    for(int i = 0 ; i < n-1 ; i ++){
        int j = i+1;
        if(pref(b[i],b[j]))continue;
        for(int k = 0 ; true ; k ++){
            if(b[i][k]!=b[j][k]){
                ng[b[i][k]-'a'].push_back(b[j][k]-'a');
                break;
            }
        }
    }
    for(int i = 0 ; i < 26 ; i ++){
        if(visited[i])continue;
        dfs(i);
        if(!good){
            cout<<"NE";
            return 0;
        }
    }
    vector<char> rez(26);
    for(int i = 0 ; i <ord.size() ; i ++){
        rez[ord[i]]=char('z'-i);
    }
    cout<<"DA"<<endl;
    for(int i = 0 ; i < 26 ; i ++)cout<<rez[i];
}

Compilation message

cezar.cpp: In function 'void dfs(int)':
cezar.cpp:21:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0 ; i < ng[a].size() ; i ++){
                     ~~^~~~~~~~~~~~~~
cezar.cpp: In function 'int main()':
cezar.cpp:67:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0 ; i <ord.size() ; i ++){
                     ~~^~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 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 3 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 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 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 4 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 2 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 4 ms 496 KB Output is correct
2 Correct 4 ms 376 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 396 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

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