Compilare: user.cpp: In function ‘void PolishForm()’: user.cpp:83:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (strchr("+/^!",s[i])) if (st.empty()) { ^ user.cpp: In function ‘void Read()’: user.cpp:17:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare1.in","r",stdin); ^ user.cpp:18:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^ user.cpp: In function ‘long long int prior(char)’: user.cpp:28:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘long long int transf(char)’: user.cpp:38:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void Eval()’: user.cpp:119:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare1.out","w",stdout); ^