Compilare: main.cpp: In function 'void adaugare(int)': main.cpp:16:14: warning: unused variable 'i' [-Wunused-variable] int poz, i; ^ main.cpp: In function 'void stergere(int)': main.cpp:25:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<= v[poz].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp:27:22: warning: value computed is not used [-Wunused-value] v[poz][i] == -1; main.cpp: In function 'void verificare(int)': main.cpp:34:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i =1; i<= v[poz].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:53:14: warning: this 'if' clause does not guard... [-Wmisleading-indentation] else if (operatie == 3) ^~ main.cpp:55:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' g<<endl; ^