Eroare de compilare: main.cpp: In function 'void findroad()': main.cpp:37:12: warning: statement has no effect [-Wunused-value] worst==0; ~~~~~^~~ main.cpp:43:81: error: no matching function for call to 'min(int&, char&)' pq.push(makedata(x+dirx[i],y+diry[i],min(worst,mat[x+dirx[i]][y+diry[i]]))); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:195:5: note: candidate: template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&) min(const _Tp& __a, const _Tp& __b) ^~~ /usr/include/c++/6/bits/stl_algobase.h:195:5: note: template argument deduction/substitution failed: main.cpp:43:81: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'char') pq.push(makedata(x+dirx[i],y+diry[i],min(worst,mat[x+dirx[i]][y+diry[i]]))); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:243:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare) min(const _Tp& __a, const _Tp& __b, _Compare __comp) ^~~ /usr/include/c++/6/bits/stl_algobase.h:243:5: note: template argument deduction/substitution failed: main.cpp:43:81: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'char') pq.push(makedata(x+dirx[i],y+diry[i],min(worst,mat[x+dirx[i]][y+diry[i]]))); ^ Non zero exit status: 1