Compilare: main.cpp: In function 'int main()': main.cpp:33:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( linie.size() < j ) ~~~~~~~~~~~~~^~~ main.cpp:100:42: warning: 'pj' may be used uninitialized in this function [-Wmaybe-uninitialized] out << dmin << " " << pi << " " << pj; ^ main.cpp:100:33: warning: 'pi' may be used uninitialized in this function [-Wmaybe-uninitialized] out << dmin << " " << pi << " " << pj; ^~~