#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <iomanip>
#include <array>
#include <string>
#include <algorithm>
#include <cmath>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <bitset>
#include <list>
#include <iterator>
#include <numeric>
#include <complex>
#include <utility>
#include <random>
#include <fstream>
using namespace std;
/* -------------------- Typedefs -------------------- */
typedef int itn;
typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef float fl;
typedef long double ld;
/* -------------------- Usings -------------------- */
using vi = vector<int>;
using vll = vector<ll>;
using mii = map<int, int>;
using mll = map<ll, ll>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
/* -------------------- Defines -------------------- */
#define ff first
#define ss second
#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define mpr make_pair
#define yes cout<<"YES\n"
#define no cout<<"NO\n"
#define all(x) (x).begin(), (x).end()
/* -------------------- Constants -------------------- */
const int MAX = int(2e9 + 5);
const ll MAXL = ll(1e18) + 5ll;
const ll MOD = ll(1e9 + 7);
const ll MOD2 = ll(998244353);
/* -------------------- Functions -------------------- */
void fastio() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
}
void precision(int x) {
cout.setf(ios::fixed | ios::showpoint);
cout.precision(x);
}
ll gcd(ll a, ll b) {
if (a == 0 || b == 0) return(max(a, b));
while (b) {
a %= b;
swap(a, b);
}
return a;
}
ll lcm(ll a, ll b) {
return a / gcd(a, b) * b;
}
ll range_sum(ll a, ll b) {
ll dif = a - 1, cnt = b - a + 1;
ll ans = ((b - a + 1) * (b - a + 2)) / 2;
ans += ((b - a + 1) * dif);
return ans;
}
string dec_to_bin(ll a) {
string s = "";
for (ll i = a; i > 0; ) {
ll k = i % 2;
i /= 2;
char c = k + 48;
s += c;
}
if (a == 0) {
s = "0";
}
reverse(all(s));
return s;
}
ll bin_to_dec(string s) {
ll num = 0;
for (int i = 0; i < s.size(); i++) {
num *= 2ll;
num += (s[i] - '0');
}
return num;
}
int isPrime(ll a) {
if (a == 1) return 0;
for (ll i = 2; i * i <= a; i++) {
if (a % i == 0) return 0;
}
return 1;
}
ll binpow(ll a, ll b) {
if (!a) return 0;
ll ans = 1;
while (b) {
if (b & 1) {
ans *= a;
}
b >>= 1;
a *= a;
}
return ans;
}
ll binpow_by_mod(ll a, ll b, ll mod) {
if (!a) return 0;
ll ans = 1;
while (b) {
if (b & 1) {
ans *= a;
ans %= mod;
}
b >>= 1;
a *= a;
a %= mod;
}
return ans;
}
/* -------------------- Solution -------------------- */
const int N = 1000005, M = 30;
int trie[N][M], p[N], last[N], mark[N];
string s;
int n, id = 1, answ = -1, node = 0;
vector<char> ans;
void add(int cur = 1, int ind = 0) {
if (ind == s.size()) {
mark[cur] = 1;
return;
}
if (!trie[cur][s[ind] - 'a']) trie[cur][s[ind] - 'a'] = ++id, p[id] = cur;
add(trie[cur][s[ind] - 'a'], ind + 1);
}
void dfs1(int u = 1, int len = 0) {
for (int i = 0; i < 26; ++i) {
if (trie[u][i]) dfs1(trie[u][i], len + 1);
}
if (len > answ) {
answ = len;
node = u;
}
}
void dfs2(int u = 1) {
int gag = -1;
if (mark[u]) ans.pub('P');
for (int i = 0; i < 26; ++i) {
if (!trie[u][i]) continue;
if (last[trie[u][i]]) {
gag = i;
continue;
}
ans.pub(char('a' + i));
dfs2(trie[u][i]);
}
if (gag != -1) {
ans.pub(char('a' + gag));
dfs2(trie[u][gag]);
}
if (!last[u]) ans.pub('-');
}
void slv() {
cin >> n;
for (int i = 0; i < n; ++i) {
cin >> s;
add();
}
dfs1();
while (node) {
last[node] = 1;
node = p[node];
}
dfs2();
cout << ans.size() << '\n';
for (auto elem : ans) cout << elem << '\n';
}
void cs() {
int tstc = 1;
//cin >> tstc;
while (tstc--) {
slv();
}
}
void precalc() {
return;
}
int main() {
fastio();
precalc();
//precision(0);
cs();
return 0;
}
Compilation message
printer.cpp: In function 'll range_sum(ll, ll)':
printer.cpp:91:21: warning: unused variable 'cnt' [-Wunused-variable]
91 | ll dif = a - 1, cnt = b - a + 1;
| ^~~
printer.cpp: In function 'll bin_to_dec(std::string)':
printer.cpp:114:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
114 | for (int i = 0; i < s.size(); i++) {
| ~~^~~~~~~~~~
printer.cpp: In function 'void add(int, int)':
printer.cpp:166:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
166 | if (ind == s.size()) {
| ~~~~^~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 2 |
Correct |
4 ms |
5468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
7768 KB |
Output is correct |
| 2 |
Correct |
13 ms |
13400 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
16 ms |
14604 KB |
Output is correct |
| 2 |
Correct |
7 ms |
6232 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
43 ms |
28624 KB |
Output is correct |
| 2 |
Correct |
98 ms |
56240 KB |
Output is correct |
| 3 |
Correct |
51 ms |
34096 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
35 ms |
22228 KB |
Output is correct |
| 2 |
Correct |
113 ms |
65628 KB |
Output is correct |
| 3 |
Correct |
58 ms |
35800 KB |
Output is correct |
| 4 |
Correct |
82 ms |
62408 KB |
Output is correct |
