Compilare: user.cpp: In function ‘int calcul(int, int, int, int, int, int)’: user.cpp:23: warning: value computed is not used user.cpp:24: warning: value computed is not used user.cpp:9: warning: unused variable ‘s1’ user.cpp:9: warning: unused variable ‘s2’ user.cpp:9: warning: unused variable ‘s3’ user.cpp:28: warning: control reaches end of non-void function