Compilare: main.cpp: In function 'int Convert(std::__cxx11::string)': main.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < s.size(); ++i ) ~~^~~~~~~~~~ main.cpp: In function 'void Read()': main.cpp:58:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < s.size(); ++j ) ~~^~~~~~~~~~ main.cpp: In function 'void Do()': main.cpp:114:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < V.size() && V[i].nr_E == 0; ++i ) ~~^~~~~~~~~~ main.cpp:135:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < V.size() && picked < N - 1; ++i ) ~~^~~~~~~~~~