#include <bits/stdc++.h>
using namespace std;
const int ALF = 30;
const int MAXN = 25e3+7;
int t[MAXN][ALF],depth[MAXN*ALF],md[MAXN*ALF];
bool visited[MAXN*ALF],visited1[MAXN*ALF],ks[MAXN*ALF];
vector<int> ans;
struct str{
int fi,sc,th;
};
bool comp(str a,str b){
return a.fi<b.fi;
}
void DFS(int x){
visited1[x]=1;
vector<str> v;
for(int i=0;i<26;i++) if(visited1[t[x][i]]==0 and t[x][i]>0) v.push_back({md[t[x][i]],t[x][i],i});
sort(v.begin(), v.end(),comp);
for(auto p:v){
ans.push_back(p.th);
if(ks[p.sc]==1){
ans.push_back(-1);
}
DFS(p.sc);
}
ans.push_back(-2);
}
void DFS1(int x,int f){
visited[x]=1;
depth[x]=depth[f]+1;
md[x]=depth[x];
for(int i=0;i<26;i++) if(visited[t[x][i]]==0 and t[x][i]>0) DFS1(t[x][i],x);
for(int i=0;i<26;i++) md[x]=max(md[x], md[t[x][i]]);
}
int main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int n,cnt=0,x;
string s;
cin>>n;
while(n--){
cin>>s; x=0;
for(int i=0;i<s.size();i++){
if(t[x][s[i]-97]==0) t[x][s[i]-97]=++cnt;
x=t[x][s[i]-97];
}
ks[x]=1;
}
DFS1(0,0); DFS(0);
while(ans[ans.size()-1]==-2) ans.pop_back();
cout<<ans.size()<<'\n';
for(auto i:ans){
if(i==-2) cout<<"-\n";
else if(i==-1) cout<<"P\n";
else cout<<char(i+'a')<<'\n';
}
return 0;
}
Compilation message
printer.cpp: In function 'int main()':
printer.cpp:42:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
42 | for(int i=0;i<s.size();i++){
| ~^~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2396 KB |
Output is correct |
2 |
Correct |
3 ms |
2908 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
5720 KB |
Output is correct |
2 |
Correct |
4 ms |
5724 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
8028 KB |
Output is correct |
2 |
Runtime error |
7 ms |
6488 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
6 ms |
6492 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
5 ms |
6488 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
5 ms |
6492 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |