Compilare: user.cpp: In function ‘void scadere1()’: user.cpp:14:10: warning: unused variable ‘i’ [-Wunused-variable] int i,t=0; ^ user.cpp: In function ‘void scadere2()’: user.cpp:28:10: warning: unused variable ‘i’ [-Wunused-variable] int i,t=0; ^ user.cpp: In function ‘int main()’: user.cpp:53:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("palindrom4.in","r",stdin); ^ user.cpp:54:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("palindrom4.out","w",stdout); ^ user.cpp:55:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^