Compilare: main.cpp: In function 'void radixSort()': main.cpp:32:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < sorted[i].size(); j++){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:45:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < sorted[i].size(); j++){ ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void Solve()': main.cpp:127:13: warning: 'first' may be used uninitialized in this function [-Wmaybe-uninitialized] if(first > 1) ^~