Compilare: user.cpp: In function ‘int main()’: user.cpp:23:7: warning: unused variable ‘j’ [-Wunused-variable] int i,j,k,P=0,Q=0,C; ^ user.cpp:23:9: warning: unused variable ‘k’ [-Wunused-variable] int i,j,k,P=0,Q=0,C; ^ user.cpp: In function ‘int incape(int)’: user.cpp:19:1: warning: control reaches end of non-void function [-Wreturn-type] } ^