Compilare: user.cpp: In function ‘int main()’: user.cpp:57:13: warning: unused variable ‘hash1’ [-Wunused-variable] int hash1 = 0, hash2 = 0; ^ user.cpp:57:24: warning: unused variable ‘hash2’ [-Wunused-variable] int hash1 = 0, hash2 = 0; ^ user.cpp:68:13: warning: unused variable ‘hash1’ [-Wunused-variable] int hash1 = 0, hash2 = 0; ^ user.cpp:68:24: warning: unused variable ‘hash2’ [-Wunused-variable] int hash1 = 0, hash2 = 0; ^ user.cpp:45:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("enigma.in", "r", stdin); ^ user.cpp:46:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("enigma.out", "w", stdout); ^ user.cpp:47:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("debug.err", "w", stderr); ^