Compilare: main.cpp: In function 'bool solve(int, std::vector<int>)': main.cpp:30:9: warning: unused variable 'nr' [-Wunused-variable] 30 | int nr = 0, nrop = 0, nropmin = 0, op = 0; | ^~ main.cpp:30:27: warning: variable 'nropmin' set but not used [-Wunused-but-set-variable] 30 | int nr = 0, nrop = 0, nropmin = 0, op = 0; | ^~~~~~~ main.cpp:47:9: warning: unused variable 'extra' [-Wunused-variable] 47 | int extra = 0; | ^~~~~ main.cpp: In function 'int main()': main.cpp:91:16: warning: 'rez' may be used uninitialized in this function [-Wmaybe-uninitialized] 91 | cout<<rez<<'\n'; | ^~~~