Compilare: main.cpp: In function 'int main()': main.cpp:25:59: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] 25 | dist[i] = (coord[i][1] - coord[0][1]) ^ 2 + (coord[i][0] - coord[0][0]) ^ 2; | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:39:90: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] 39 | dist[k] = min(dist[k], (coord[k][1] - coord[loc][1]) ^ 2 + (coord[k][0] - coord[loc][0]) ^ 2); | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/iostream:39, from main.cpp:1: In member function 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char; _Traits = std::char_traits<char>]', inlined from 'int main()' at main.cpp:43:7: /usr/include/c++/12.2.1/ostream:221:25: warning: 'total' may be used uninitialized [-Wmaybe-uninitialized] 221 | { return _M_insert(__f); } | ~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:8:16: note: 'total' was declared here 8 | double total,dist_mincost; | ^~~~~ main.cpp:35:28: warning: 'loc' may be used uninitialized [-Wmaybe-uninitialized] 35 | vizitat[loc] = 1; | ^ main.cpp:7:21: note: 'loc' was declared here 7 | int n, x, y,loc; | ^~~