Compilare: main.cpp: In function 'int main()': main.cpp:18:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < s[0].size(); i++) ~~^~~~~~~~~~~~~ main.cpp:22:23: warning: capture of variable 'complexitate' with non-automatic storage duration sort(s+1, s+n+1, [complexitate](const string& x, const string& y) -> bool{ ^~~~~~~~~~~~ main.cpp:12:5: note: 'int complexitate [30]' declared here int complexitate[30]; ^~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:31:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(len == x.size()) ~~~~^~~~~~~~~~~