Compilare: user.cpp: In function ‘int fact2(int, int)’: user.cpp:63:14: warning: the address of ‘best’ will always evaluate as ‘true’ [-Waddress] if (!best && !sir) return -1; ^ user.cpp: In function ‘int main()’: user.cpp:67:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("sprim.in", "r", stdin); ^ user.cpp:68:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("sprim.out", "w", stdout); ^ user.cpp:70:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &N); ^ user.cpp:72:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &chr[i]), fact(chr[i], i); ^