Compilare: user.cpp: In function ‘void Citeste()’: user.cpp:32:9: warning: unused variable ‘lin’ [-Wunused-variable] int i, lin, col, an; ^ user.cpp:32:14: warning: unused variable ‘col’ [-Wunused-variable] int i, lin, col, an; ^ user.cpp:32:19: warning: unused variable ‘an’ [-Wunused-variable] int i, lin, col, an; ^ user.cpp: In function ‘void Solve()’: user.cpp:62:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<a.size(); ++j) ^ user.cpp:78:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<sl.size(); ++j) ^