Compilare: user.cpp: In function ‘long long int Ciur()’: user.cpp:24:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘long long int Nrsum()’: user.cpp:69:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘long long int Nrdiv(long long int, long long int)’: user.cpp:99:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:102:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^