Compilare: main.cpp: In function 'int main()': main.cpp:25:17: warning: unused variable 'poz1' [-Wunused-variable] int poz,poz1; ^~~~ main.cpp:60:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<sol.size();i++) ~^~~~~~~~~~~ main.cpp:12:9: warning: unused variable 'pooz' [-Wunused-variable] int pooz=1; ^~~~ main.cpp:40:9: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] int pos; ^~~