Compilare: main.cpp: In function 'int main()': main.cpp:27:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<v.size(); i++) ~^~~~~~~~~ main.cpp:14:18: warning: unused variable 'j' [-Wunused-variable] int n, m, i, j, pos, nr; ^ main.cpp:14:26: warning: unused variable 'nr' [-Wunused-variable] int n, m, i, j, pos, nr; ^~