oj.uz

Submission #555463

# Submission time Handle Problem Language Result Execution time Memory
555463 2022-05-01T01:48:11 Z Sharky Type Printer (IOI08_printer) C++17
100 / 100
 87 ms 49340 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int maxn = 25000 * 20 + 5;
int cnt = 0, nex[maxn][26], n; string mx = ""; vector<string> vs; 
vector<bool> flag(maxn, false), bac(maxn, false); vector<char> ans;
void ins(string& s, bool f) {
    int p = 0;
    for (int i = 0; i < s.length(); i++) {
        int c = s[i] - 'a';
        if (!nex[p][c]) nex[p][c] = ++cnt;
        p = nex[p][c];
        flag[p] = f; 
        if (i == s.length() - 1) bac[p] = true; 
    }
}
void dfs(int u) {
    if (bac[u]) ans.pb('P');
    if (flag[u]) {
        for (int i = 0; i < 26; i++) if (!flag[nex[u][i]] && nex[u][i]) ans.pb((char) (i + 'a')), dfs(nex[u][i]), ans.pb('-');
        for (int i = 0; i < 26; i++) if (flag[nex[u][i]] && nex[u][i]) ans.pb((char) (i + 'a')), dfs(nex[u][i]), ans.pb('-');
    } else {
        for (int i = 0; i < 26; i++) if (nex[u][i]) ans.pb((char) (i + 'a')), dfs(nex[u][i]), ans.pb('-');
    }
}
signed main() {
    ios::sync_with_stdio(0); cin.tie(0);
    cin >> n;
    while (n--) {
        string s; cin >> s; vs.pb(s);
        if (s.length() > mx.length() || (s.length() == mx.length() && s > mx)) mx = s;
    }
    for (auto& s : vs) if (s != mx) ins(s, false);
    ins(mx, true); 
    flag[0] = true; 
    dfs(0);
    while (ans.back() == '-') ans.pop_back();
    cout << ans.size() << "\n";
    for (char c : ans) cout << c << "\n";
    return 0;
}

Compilation message

printer.cpp: In function 'void ins(std::string&, bool)':
printer.cpp:9:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for (int i = 0; i < s.length(); i++) {
      |                     ~~^~~~~~~~~~~~
printer.cpp:14:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |         if (i == s.length() - 1) bac[p] = true;
      |             ~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 340 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 852 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1236 KB Output is correct
2 Correct 2 ms 1364 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 3284 KB Output is correct
2 Correct 11 ms 6608 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 7836 KB Output is correct
2 Correct 7 ms 2316 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 18828 KB Output is correct
2 Correct 76 ms 41536 KB Output is correct
3 Correct 44 ms 22576 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 15160 KB Output is correct
2 Correct 87 ms 49340 KB Output is correct
3 Correct 48 ms 25532 KB Output is correct
4 Correct 80 ms 46736 KB Output is correct