Eroare de compilare: user.cpp: In function ‘int get_int(std::string)’: user.cpp:15:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz < s.size() && s[poz] >= '0' && s[poz] <= '9') { ^ user.cpp: In function ‘long long int solve(int, int)’: user.cpp:28:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz < s[x][y].size()) { ^ user.cpp:30:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz == s[x][y].size()) ^ user.cpp:31:51: error: no matching function for call to ‘max(int, long long int&)’ return ans[x][y] = max(0, ans[x][y]) + a; ^ user.cpp:31:51: note: candidates are: In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_algobase.h:216:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&) max(const _Tp& __a, const _Tp& __b) ^ /usr/include/c++/4.8/bits/stl_algobase.h:216:5: note: template argument deduction/substitution failed: user.cpp:31:51: note: deduced conflicting types for parameter ‘const _Tp’ (‘int’ and ‘long long int’) return ans[x][y] = max(0, ans[x][y]) + a; ^ In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_algobase.h:260:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare) max(const _Tp& __a, const _Tp& __b, _Compare __comp) ^ /usr/include/c++/4.8/bits/stl_algobase.h:260:5: note: template argument deduction/substitution failed: user.cpp:31:51: note: deduced conflicting types for parameter ‘const _Tp’ (‘int’ and ‘long long int’) return ans[x][y] = max(0, ans[x][y]) + a; ^ user.cpp:34:44: error: no matching function for call to ‘max(int, long long int&)’ ans[x][y] = max(0, ans[x][y]) + a; ^ user.cpp:34:44: note: candidates are: In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_algobase.h:216:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&) max(const _Tp& __a, const _Tp& __b)