Compilare: main.cpp: In function 'int main()': main.cpp:49:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(i=0; i<s.size(); i++) | ~^~~~~~~~~ main.cpp:43:15: warning: unused variable 'n' [-Wunused-variable] 43 | long long n,cer,a,b,i,tip=0,semn=0,prod,h,suma2,j,z; | ^ main.cpp:43:21: warning: unused variable 'a' [-Wunused-variable] 43 | long long n,cer,a,b,i,tip=0,semn=0,prod,h,suma2,j,z; | ^ main.cpp:43:23: warning: unused variable 'b' [-Wunused-variable] 43 | long long n,cer,a,b,i,tip=0,semn=0,prod,h,suma2,j,z; | ^ main.cpp:43:45: warning: unused variable 'h' [-Wunused-variable] 43 | long long n,cer,a,b,i,tip=0,semn=0,prod,h,suma2,j,z; | ^ main.cpp: In function 'int recurs(long long int, long long int)': main.cpp:36:1: warning: control reaches end of non-void function [-Wreturn-type] 36 | } | ^