#include <bits/stdc++.h>
#define int long long
using namespace std;
int pref(string s1, string s2) {
for (int i=0; i<s1.size(); i++) {
if (i>=s2.size() || s1[i]!=s2[i]) {
return i;
}
}
return min(s1.size(), s2.size());
}
signed main() {
//freopen("input.txt", "r", stdin);
//freopen("output.txt", "w", stdout);
int n;
cin >> n;
vector<string> v;
int ma=0;
int mpos=-1;
vector<int> answers(n);
for (int i=0; i<n; i++) {
string s;
cin >> s;
v.push_back(s);
if (s.size()>ma) {
ma=s.size();
mpos=i;
}
}
string mword=v[mpos];
for (int i=0; i<n; i++) {
answers[i] = pref(v[i], mword);
}
vector<int> w;
for (int i=0; i<n; i++) {
w.push_back(i);
}
sort(w.begin(), w.end(), [&](const int s1, const int s2) {
if (answers[s1]!=answers[s2]) {
return answers[s1]<answers[s2];
}
return v[s1]<v[s2];
});
vector<string> v2(n);
for (int i=0; i<n; i++) {
v2[i] = v[w[i]];
}
int tot=0;
vector<char> prints;
string current;
for (int i=0; i<n; i++) {
int t=pref(current,v2[i]);
while (current.size()>t) {
prints.append('-');
current.pop_back();
}
for (int j=current.size(); j<v2[i].size(); j++) {
prints.append(v2[i][j]);
}
current = v2[i];
prints.push_back('P');
}
cout << prints.size() << endl;
for (auto i:prints) {
cout << i << endl;
}
}
Compilation message
printer.cpp: In function 'long long int pref(std::string, std::string)':
printer.cpp:6:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
6 | for (int i=0; i<s1.size(); i++) {
| ~^~~~~~~~~~
printer.cpp:7:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
7 | if (i>=s2.size() || s1[i]!=s2[i]) {
| ~^~~~~~~~~~~
printer.cpp: In function 'int main()':
printer.cpp:27:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
27 | if (s.size()>ma) {
| ~~~~~~~~^~~
printer.cpp:56:30: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
56 | while (current.size()>t) {
| ~~~~~~~~~~~~~~^~
printer.cpp:57:20: error: 'class std::vector<char>' has no member named 'append'
57 | prints.append('-');
| ^~~~~~
printer.cpp:60:37: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
60 | for (int j=current.size(); j<v2[i].size(); j++) {
| ~^~~~~~~~~~~~~
printer.cpp:61:20: error: 'class std::vector<char>' has no member named 'append'
61 | prints.append(v2[i][j]);
| ^~~~~~
printer.cpp:51:9: warning: unused variable 'tot' [-Wunused-variable]
51 | int tot=0;
| ^~~