Compilare: user.cpp: In function ‘int calculeaza()’: user.cpp:28:15: warning: NULL used in arithmetic [-Wpointer-arith] while(*p!=NULL) ^ user.cpp:51:30: warning: value computed is not used [-Wunused-value] st.pop(),*p++; ^ user.cpp: In function ‘int rezolvare()’: user.cpp:73:15: warning: NULL used in arithmetic [-Wpointer-arith] while(*n!=NULL) ^ user.cpp:78:37: warning: value computed is not used [-Wunused-value] v[i]=v[i]*10+*n-'0',*n++; ^ user.cpp:91:17: warning: value computed is not used [-Wunused-value] *n++; ^ user.cpp: In function ‘int prioritate(char)’: user.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:98:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("evaluare.in","r",stdin); ^ user.cpp:99:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("evaluare.out","w",stdout); ^ user.cpp:100:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^