Compilare: main.cpp: In function 'int main()': main.cpp:12:7: warning: unused variable 'pos' [-Wunused-variable] int pos, max, top; ^~~ main.cpp:12:12: warning: unused variable 'max' [-Wunused-variable] int pos, max, top; ^~~ main.cpp:13:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("palindrom.in", "r", stdin); ^ main.cpp:14:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("palindrom.out", "w", stdout); ^