Compilare: main.cpp: In function 'long long int solve(int, std::vector<int>)': main.cpp:8:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<v.size() && v[i]==0) ~^~~~~~~~~ main.cpp:10:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;i<v.size();i++){ ~^~~~~~~~~ main.cpp:13:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<v.size() && v[j]==v[i]){ ~^~~~~~~~~ main.cpp:21:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<frv.size();i++) ~^~~~~~~~~~~ main.cpp:28:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<frv.size() && valmin==frv[i]) ~^~~~~~~~~~~