Submission #328671

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
328671	2020-11-17T14:19:52 Z	aris12345678	Type Printer (IOI08_printer)	C++14	Compilation error	0 ms	0 KB

printer

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pi pair<int, int>
#define fi first
#define se second

const int mxN = 1e5+5;
const int mod = 1e9+7;
const ll inf = 1e18;

struct node {
    bool word;
    int depth;
    node *children[26];
    node() {
        word = 0, depth = 0;
        for(int i = 0; i < 26; i++) children[i] = nullptr;
    }
}; node *root = new node();

int n;
string s[mxN];
vector<char> ans;

// insert string s
void add(string s) {
    node *cur = root;
    for(int i = 0; i < s.length(); i++) {
        cur->depth = max(cur->depth, s.length());
        if(cur->children[s[i]-'a'] == nullptr) cur->children[s[i]-'a'] = new node();
        cur = cur->children[s[i]-'a'];
    }
    cur->depth = max(cur->depth, s.length());
    cur->word = 1;
}

// dfs in a trie starting from the root
void dfs(node *u, int back) {
    if(u->word) ans.push_back('P'); // red vertice - end of the word
    int p = 0;
    node *x = nullptr;
    for(int i = 0; i < 26; i++) {
        node *v = u->children[i];
        if(v == nullptr) continue;
        if(x == nullptr || v->depth > x->depth) { x = v; p = i; }
        if(v == x) continue;
        ans.push_back(i+'a');
        dfs(v, 0);
    }
    if(x != nullptr) { ans.push_back(p+'a'); dfs(x, back); }
    if(!back) ans.push_back('-');
}

int main() {
    ios::sync_with_stdio(0); cin.tie(0);
    cin >> n;
    for(int i = 0; i < n; i++) {
        cin >> s[i];
        add(s[i]);
    }
    dfs(root, 1);
    cout << ans.size() << "\n";
    for(char i : ans) cout << i << "\n";
    return 0;
}

Compilation message

printer.cpp: In function 'void add(std::string)':
printer.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int i = 0; i < s.length(); i++) {
      |                    ~~^~~~~~~~~~~~
printer.cpp:31:48: error: no matching function for call to 'max(int&, std::__cxx11::basic_string<char>::size_type)'
   31 |         cur->depth = max(cur->depth, s.length());
      |                                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:222:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:   template argument deduction/substitution failed:
printer.cpp:31:48: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
   31 |         cur->depth = max(cur->depth, s.length());
      |                                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:   template argument deduction/substitution failed:
printer.cpp:31:48: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
   31 |         cur->depth = max(cur->depth, s.length());
      |                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3456:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3456 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3456:5: note:   template argument deduction/substitution failed:
printer.cpp:31:48: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   31 |         cur->depth = max(cur->depth, s.length());
      |                                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3462:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3462 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
printer.cpp:31:48: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   31 |         cur->depth = max(cur->depth, s.length());
      |                                                ^
printer.cpp:35:44: error: no matching function for call to 'max(int&, std::__cxx11::basic_string<char>::size_type)'
   35 |     cur->depth = max(cur->depth, s.length());
      |                                            ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:222:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:   template argument deduction/substitution failed:
printer.cpp:35:44: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
   35 |     cur->depth = max(cur->depth, s.length());
      |                                            ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:   template argument deduction/substitution failed:
printer.cpp:35:44: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
   35 |     cur->depth = max(cur->depth, s.length());
      |                                            ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3456:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3456 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3456:5: note:   template argument deduction/substitution failed:
printer.cpp:35:44: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   35 |     cur->depth = max(cur->depth, s.length());
      |                                            ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from printer.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3462:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3462 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
printer.cpp:35:44: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   35 |     cur->depth = max(cur->depth, s.length());
      |                                            ^