Compilare: user.cpp: In function ‘int main()’: user.cpp:196:17: warning: unused variable ‘psc’ [-Wunused-variable] int n,m,i,a,b,p,psc; ^ user.cpp: In function ‘int que(int, int, int, int)’: user.cpp:116:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int que1(int, int, int, int)’: user.cpp:131:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int jos(int)’: user.cpp:178:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:194:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("eliminare.in","r",stdin); ^ user.cpp:195:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("eliminare.out","w",stdout); ^