#include<bits/stdc++.h>
using namespace std;
int k,n,i,cur,f[1000005],endd[1000005],c,ch;
vector< pair<char,int> >V[1000005],aft[1000005];
string s,ans,s1;
void add(string s){
int u=0;
for(i=0;i<s.size();i++){
int ff=0;
for(int j=0;j<aft[u].size();j++)
if(aft[u][j].first==s[i]){
ff=1;c=aft[u][j].second;break;}
if(ff==0){
cur++;
aft[u].push_back({s[i],cur});
c=cur; V[u].push_back({s[i],cur});
}
u=c;
}
endd[u]=1;
}
void check(string s){
int u=0;
for(i=0;i<s.size();i++){
for(int j=0;j<aft[u].size();j++)
if(aft[u][j].first==(int)s[i]){
c=aft[u][j].second;break;}
f[c]=1;
u=c;
}
}
void dfs(int u){
if(endd[u]!=0) ans+='P';
for(int i=0;i<V[u].size();i++){
if(f[V[u][i].second]) continue;
ans+=V[u][i].first;
dfs(V[u][i].second);
}
for(int i=0;i<V[u].size();i++){
if(f[V[u][i].second]){
ans+=V[u][i].first;
dfs(V[u][i].second);
}
}
ans+='-';
}
int main(){
ios_base::sync_with_stdio(false);
cin>>n;
for(k=1;k<=n;k++){
cin>>s;
if(s.size()>s1.size()){
s1=s;
}
add(s);
}
check(s1);
dfs(0);
i=ans.size()-1;
while(ans[i]=='-'){
i--;
}
cout<<i+1<<endl;
for(k=0;k<=i;k++){
cout<<ans[k]<<endl;
}
}
Compilation message
printer.cpp: In function 'void add(std::__cxx11::string)':
printer.cpp:8:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(i=0;i<s.size();i++){
~^~~~~~~~~
printer.cpp:10:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<aft[u].size();j++)
~^~~~~~~~~~~~~~
printer.cpp: In function 'void check(std::__cxx11::string)':
printer.cpp:24:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(i=0;i<s.size();i++){
~^~~~~~~~~
printer.cpp:26:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<aft[u].size();j++)
~^~~~~~~~~~~~~~
printer.cpp: In function 'void dfs(int)':
printer.cpp:36:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<V[u].size();i++){
~^~~~~~~~~~~~
printer.cpp:41:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<V[u].size();i++){
~^~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
47352 KB |
Output is correct |
2 |
Correct |
34 ms |
47360 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
47360 KB |
Output is correct |
2 |
Correct |
29 ms |
47360 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
30 ms |
47360 KB |
Output is correct |
2 |
Correct |
29 ms |
47360 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
29 ms |
47360 KB |
Output is correct |
2 |
Correct |
29 ms |
47352 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
33 ms |
47360 KB |
Output is correct |
2 |
Correct |
48 ms |
47616 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
61 ms |
47864 KB |
Output is correct |
2 |
Correct |
66 ms |
48000 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
154 ms |
49024 KB |
Output is correct |
2 |
Correct |
276 ms |
51064 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
310 ms |
51696 KB |
Output is correct |
2 |
Correct |
105 ms |
48248 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
693 ms |
58512 KB |
Output is correct |
2 |
Execution timed out |
1102 ms |
72880 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
572 ms |
55548 KB |
Output is correct |
2 |
Execution timed out |
1086 ms |
77404 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |