제출 #655220

#제출 시각아이디문제언어결과실행 시간메모리
655220SansPapyrus683Zamjene (COCI16_zamjene)C++17
컴파일 에러
0 ms0 KiB
#include <iostream> #include <cassert> #include <vector> #include <map> #include <algorithm> // #include "debugging.hpp" using std::cout; using std::endl; using std::vector; using std::pair; using ll = long long; pair<ll, ll> operator+(const pair<ll, ll>& a, const pair<ll, ll>& b) { return {a.first + b.first, a.second + b.second}; } pair<ll, ll> operator-(const pair<ll, ll>& a, const pair<ll, ll>& b) { return {a.first - b.first, a.second - b.second}; } pair<ll, ll> operator%(const pair<ll, ll>& a, const pair<ll, ll>& b) { return {a.first % b.first, a.second % b.second}; } class DominikArray { private: const int POW = 1000003; const pair<int, int> MOD = {1e9 + 7, 1e9 + 9}; vector<int> arr; vector<int> sorted; vector<int> parent; vector<int> size; int bad_num = 0; std::map<int, pair<ll, ll>> elem_pow; vector<pair<ll, ll>> hash; vector<pair<ll, ll>> req_hash; std::map<pair<ll, ll>, int> bad_diff; ll cloud_pairs = 0; int get_top(int n) { return parent[n] == n ? n : (parent[n] = get_top(parent[n])); } inline bool is_unsortable(int n) { return hash[n] != req_hash[n]; } void add_if_bad(int n) { if (is_unsortable(n)) { bad_num++; cloud_pairs += size[n] * bad_diff[hash[n] - req_hash[n]]; bad_diff[req_hash[n] - hash[n]] += size[n]; } } void remove_if_bad(int n) { if (is_unsortable(n)) { bad_num--; cloud_pairs -= size[n] * bad_diff[hash[n] - req_hash[n]]; bad_diff[req_hash[n] - hash[n]] -= size[n]; } } public: DominikArray(vector<int> arr) : arr(arr), parent(arr.size()), size(arr.size(), 1), hash(arr.size()), req_hash(arr.size()) { sorted = arr; std::sort(sorted.begin(), sorted.end()); pair<ll, ll> curr_pow{1, 1}; for (int i : sorted) { if (!elem_pow.count(i)) { elem_pow[i] = curr_pow; curr_pow = pair<ll, ll>{ curr_pow.first * POW, curr_pow.second * POW } % MOD; } } cout << elem_pow << endl; for (int i = 0; i < arr.size(); i++) { parent[i] = i; hash[i] = elem_pow[arr[i]]; req_hash[i] = elem_pow[sorted[i]]; add_if_bad(i); } } void swap(int a, int b) { int top_a = get_top(a); int top_b = get_top(b); remove_if_bad(top_a); remove_if_bad(top_b); hash[top_a] = hash[top_a] + elem_pow[arr[b]] - elem_pow[arr[a]] + MOD; hash[top_a] = hash[top_a] % MOD; hash[top_b] = hash[top_b] + elem_pow[arr[a]] - elem_pow[arr[b]] + MOD; hash[top_b] = hash[top_b] % MOD; add_if_bad(top_a); add_if_bad(top_b); std::swap(arr[a], arr[b]); } void link(int a, int b) { a = get_top(a); b = get_top(b); if (a == b) { return; } if (size[a] < size[b]) { return link(b, a); } remove_if_bad(a); remove_if_bad(b); size[a] += size[b]; parent[b] = a; hash[a] = (hash[a] + hash[b]) % MOD; req_hash[a] = (req_hash[a] + req_hash[b]) % MOD; add_if_bad(a); } bool sortable() { return bad_num == 0; } ll needed_pair_num() { return cloud_pairs; } }; // https://oj.uz/problem/view/COCI16_zamjene (input omitted due to length) int main() { int arr_len; int query_num; std::cin >> arr_len >> query_num; vector<int> arr(arr_len); for (int& i : arr) { std::cin >> i; } DominikArray array(arr); for (int q = 0; q < query_num; q++) { int type; std::cin >> type; int a, b; // not necessarily used (queries of type 3 & 4) switch (type) { case 1: std::cin >> a >> b; array.swap(--a, --b); break; case 2: std::cin >> a >> b; array.link(--a, --b); break; case 3: cout << (array.sortable() ? "DA" : "NE") << '\n'; break; case 4: cout << array.needed_pair_num() << '\n'; break; }; } }

컴파일 시 표준 에러 (stderr) 메시지

zamjene.cpp: In constructor 'DominikArray::DominikArray(std::vector<int>)':
zamjene.cpp:84:18: error: no match for 'operator<<' (operand types are 'std::ostream' {aka 'std::basic_ostream<char>'} and 'std::map<int, std::pair<long long int, long long int> >')
   84 |             cout << elem_pow << endl;
      |             ~~~~ ^~ ~~~~~~~~
      |             |       |
      |             |       std::map<int, std::pair<long long int, long long int> >
      |             std::ostream {aka std::basic_ostream<char>}
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:108:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type& (*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  108 |       operator<<(__ostream_type& (*__pf)(__ostream_type&))
      |       ^~~~~~~~
/usr/include/c++/10/ostream:108:36: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'std::basic_ostream<char>::__ostream_type& (*)(std::basic_ostream<char>::__ostream_type&)' {aka 'std::basic_ostream<char>& (*)(std::basic_ostream<char>&)'}
  108 |       operator<<(__ostream_type& (*__pf)(__ostream_type&))
      |                  ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/ostream:117:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ios_type& (*)(std::basic_ostream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::basic_ostream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]'
  117 |       operator<<(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/10/ostream:117:32: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'std::basic_ostream<char>::__ios_type& (*)(std::basic_ostream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'}
  117 |       operator<<(__ios_type& (*__pf)(__ios_type&))
      |                  ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/10/ostream:127:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  127 |       operator<<(ios_base& (*__pf) (ios_base&))
      |       ^~~~~~~~
/usr/include/c++/10/ostream:127:30: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'std::ios_base& (*)(std::ios_base&)'
  127 |       operator<<(ios_base& (*__pf) (ios_base&))
      |                  ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
/usr/include/c++/10/ostream:166:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  166 |       operator<<(long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:166:23: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'long int'
  166 |       operator<<(long __n)
      |                  ~~~~~^~~
/usr/include/c++/10/ostream:170:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  170 |       operator<<(unsigned long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:170:32: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'long unsigned int'
  170 |       operator<<(unsigned long __n)
      |                  ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:174:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  174 |       operator<<(bool __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:174:23: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'bool'
  174 |       operator<<(bool __n)
      |                  ~~~~~^~~
In file included from /usr/include/c++/10/ostream:784,
                 from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/bits/ostream.tcc:91:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char; _Traits = std::char_traits<char>]'
   91 |     basic_ostream<_CharT, _Traits>::
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/ostream.tcc:92:22: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'short int'
   92 |     operator<<(short __n)
      |                ~~~~~~^~~
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:181:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(short unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  181 |       operator<<(unsigned short __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:181:33: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'short unsigned int'
  181 |       operator<<(unsigned short __n)
      |                  ~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/ostream:784,
                 from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/bits/ostream.tcc:105:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char; _Traits = std::char_traits<char>]'
  105 |     basic_ostream<_CharT, _Traits>::
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/ostream.tcc:106:20: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'int'
  106 |     operator<<(int __n)
      |                ~~~~^~~
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:192:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  192 |       operator<<(unsigned int __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:192:31: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'unsigned int'
  192 |       operator<<(unsigned int __n)
      |                  ~~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:201:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  201 |       operator<<(long long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:201:28: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'long long int'
  201 |       operator<<(long long __n)
      |                  ~~~~~~~~~~^~~
/usr/include/c++/10/ostream:205:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  205 |       operator<<(unsigned long long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:205:37: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'long long unsigned int'
  205 |       operator<<(unsigned long long __n)
      |                  ~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:220:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  220 |       operator<<(double __f)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:220:25: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'double'
  220 |       operator<<(double __f)
      |                  ~~~~~~~^~~
/usr/include/c++/10/ostream:224:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(float) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  224 |       operator<<(float __f)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:224:24: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'float'
  224 |       operator<<(float __f)
      |                  ~~~~~~^~~
/usr/include/c++/10/ostream:232:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  232 |       operator<<(long double __f)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:232:30: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'long double'
  232 |       operator<<(long double __f)
      |                  ~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:245:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(const void*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  245 |       operator<<(const void* __p)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:245:30: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'const void*'
  245 |       operator<<(const void* __p)
      |                  ~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:250:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::nullptr_t) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::nullptr_t = std::nullptr_t]'
  250 |       operator<<(nullptr_t)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:250:18: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'std::nullptr_t'
  250 |       operator<<(nullptr_t)
      |                  ^~~~~~~~~
In file included from /usr/include/c++/10/ostream:784,
                 from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/bits/ostream.tcc:119:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]'
  119 |     basic_ostream<_CharT, _Traits>::
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/ostream.tcc:120:34: note:   no known conversion for argument 1 from 'std::map<int, std::pair<long long int, long long int> >' to 'std::basic_ostream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'}
  120 |     operator<<(__streambuf_type* __sbin)
      |                ~~~~~~~~~~~~~~~~~~^~~~~~
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/string_view:622:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::basic_string_view<_CharT, _Traits>)'
  622 |     operator<<(basic_ostream<_CharT, _Traits>& __os,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:622:5: note:   template argument deduction/substitution failed:
zamjene.cpp:84:21: note:   'std::map<int, std::pair<long long int, long long int> >' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   84 |             cout << elem_pow << endl;
      |                     ^~~~~~~~
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6458:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6458 |     operator<<(basic_ostream<_CharT, _Traits>& __os,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6458:5: note:   template argument deduction/substitution failed:
zamjene.cpp:84:21: note:   'std::map<int, std::pair<long long int, long long int> >' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
   84 |             cout << elem_pow << endl;
      |                     ^~~~~~~~
In file included from /usr/include/c++/10/bits/ios_base.h:46,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/system_error:262:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::error_code&)'
  262 |     operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e)
      |     ^~~~~~~~
/usr/include/c++/10/system_error:262:5: note:   template argument deduction/substitution failed:
zamjene.cpp:84:21: note:   cannot convert '((DominikArray*)this)->DominikArray::elem_pow' (type 'std::map<int, std::pair<long long int, long long int> >') to type 'const std::error_code&'
   84 |             cout << elem_pow << endl;
      |                     ^~~~~~~~
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:506:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)'
  506 |     operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
      |     ^~~~~~~~
/usr/include/c++/10/ostream:506:5: note:   template argument deduction/substitution failed:
zamjene.cpp:84:21: note:   deduced conflicting types for parameter '_CharT' ('char' and 'std::map<int, std::pair<long long int, long long int> >')
   84 |             cout << elem_pow << endl;
      |                     ^~~~~~~~
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:511:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)'
  511 |     operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
      |     ^~~~~~~~
/usr/include/c++/10/ostream:511:5: note:   template argument deduction/substitution failed:
zamjene.cpp:84:21: note:   cannot convert '((DominikArray*)this)->DominikArray::elem_pow' (type 'std::map<int, std::pair<long long int, long long int> >') to type 'char'
   84 |             cout << elem_pow << endl;
      |                     ^~~~~~~~
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:517:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char)'
  517 |     operator<<(basic_ostream<char, _Traits>& __out, char __c)
      |     ^~~~~~~~
/usr/include/c++/10/ostream:517:5: note:   template argument deduction/substitution failed:
zamjene.cpp:84:21: note:   cannot convert '((DominikArray*)this)->DominikArray::elem_pow' (type 'std::map<int, std::pair<long long int, long long int> >') to type 'char'
   84 |             cout << elem_pow << endl;
      |                     ^~~~~~~~
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:523:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char)'
  523 |     operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
      |     ^~~~~~~~
/usr/include/c++/10/ostream:523:5: note:   template argument deduction/substitution failed:
zamjene.cpp:84:21: note:   cannot convert '((DominikArray*)this)->DominikArray::elem_pow' (type 'std::map<int, std::pair<long long int, long long int> >') to type 'signed char'
   84 |             cout << elem_pow << endl;
      |                     ^~~~~~~~
In file included from /usr/include/c++/10/iostream:39,
                 from zamjene.cpp:1:
/usr/include/c++/10/ostream:528:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char)'
  528 |     operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
      |     ^~~~~~~~
/usr/include/c++/10/ostream:528:5: note:   template argument deduction