Compilare: user.cpp: In function ‘void marcheaza(regine)’: user.cpp:24:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < q.size() ; ++ j) ^ user.cpp:33:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < q.size() ; ++ j) ^ user.cpp: In function ‘void demarcheaza(regine)’: user.cpp:42:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < q.size() ; ++ j) ^ user.cpp:51:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < q.size() ; ++ j) ^ user.cpp: In function ‘int verif(std::vector<int>)’: user.cpp:63:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < sol.size() ; ++ j) ^ user.cpp: In function ‘void back(int)’: user.cpp:85:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i != sol.size() ; ++ i) ^ user.cpp:88:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i != q.size() ; ++ i) ^