Compilare: main.cpp: In function 'void coada1(int)': main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[l].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'int coada2(int)': main.cpp:32:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[l].size();i++) ~^~~~~~~~~~~~ main.cpp:39:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^