Compilare: user.cpp: In function ‘char recursiv(long long unsigned int)’: user.cpp:23:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(n<=k) ^ user.cpp: In function ‘int main()’: user.cpp:162:13: warning: unused variable ‘koo’ [-Wunused-variable] int koo=sm_par[pozitie][cr+1]; ^ user.cpp: In function ‘char recursiv(long long unsigned int)’: user.cpp:104:1: warning: control reaches end of non-void function [-Wreturn-type] } ^