# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
716641 | europium | Type Printer (IOI08_printer) | C++17 | 51 ms | 6648 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
// - 28/3/23
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <numeric>
#include <cmath>
#include <iterator>
#include <set>
#include <map>
#include <math.h>
#include <iomanip>
#include <unordered_set>
#include <queue>
#include <climits>
using namespace std;
// clang++ -std=c++17 IOI08_Printer.cpp && ./a.out
using ll = long long;
bool comp(const string &a, const string&b){
if (a.size() == b.size()) return a < b;
return a.size() < b.size();
}
void solve(){
int n;
cin >> n;
vector<string> a(n);
for (string& e : a) cin >> e;
int max_len = 0;
char end_ltr;
string max_str;
for (auto e : a){
if (e.size() > max_len){
max_len = e.size();
end_ltr = e[0];
max_str = e;
}
}
vector<string> first, last;
for (auto e : a){
if (e == max_str) continue;
if (e[0] == end_ltr) last.push_back(e);
else first.push_back(e);
}
sort(first.begin(), first.end());
sort(last.begin(), last.end());
a.clear();
for (auto e : first) a.push_back(e);
for (auto e : last) a.push_back(e);
a.push_back(max_str);
// for (auto e : last) cout << e << ' ';
// cout << '\n';
vector<char> ans;
string s = "";
for (auto e : a){
// removing characters
int min_size = min((int)s.size(), (int)e.size());
int stop;
(s.size() == 0 || e.size() == 0) ? stop = 0 : stop = min_size;
// stop is length of same prefix
for (int i = 0; i < min_size; i++){
if (s[i] != e[i]){
stop = i;
break;
}
}
// cout << s << ' ' << e << '\n';
// cout << stop << '\n';
for (int i = 0; i < s.size() - stop; i++) ans.push_back('-');
s = s.substr(0, stop);
// adding characters
while (s != e){
ans.push_back(e[s.size()]);
s += e[s.size()];
}
ans.push_back('P');
}
cout << ans.size() << '\n';
for (auto e : ans) cout << e << '\n';
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
// freopen("input.txt", "r", stdin);
solve();
return 0;
}
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