Compilare: user.cpp: In function ‘int main()’: user.cpp:10:13: warning: unused variable ‘i’ [-Wunused-variable] int n,p,i; ^ user.cpp:11:9: warning: variable ‘suma’ set but not used [-Wunused-but-set-variable] int suma; ^ user.cpp:12:11: warning: ‘n’ is used uninitialized in this function [-Wuninitialized] suma=((n-1)%p)*(n%p)*((n+1)%p)/3%p; ^ user.cpp:12:14: warning: ‘p’ is used uninitialized in this function [-Wuninitialized] suma=((n-1)%p)*(n%p)*((n+1)%p)/3%p; ^