Compilare: user.cpp: In function ‘int main()’: user.cpp:23:12: warning: unused variable ‘m’ [-Wunused-variable] ^ user.cpp:23:15: warning: unused variable ‘i’ [-Wunused-variable] ^ user.cpp:23:18: warning: unused variable ‘j’ [-Wunused-variable] ^ user.cpp:23:21: warning: unused variable ‘s’ [-Wunused-variable] ^ user.cpp:23:24: warning: unused variable ‘t’ [-Wunused-variable] ^ user.cpp:23:27: warning: unused variable ‘d’ [-Wunused-variable] ^ user.cpp: In function ‘void sterge(int)’: user.cpp:56:9: warning: unused variable ‘j’ [-Wunused-variable] ^ user.cpp: In function ‘bool cauta(int)’: user.cpp:83:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( v[ key1 ][ i ] == x ) return 1; ^ user.cpp:86:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( g[ key2 ][ i ] == x ) return 1; ^ user.cpp:81:12: warning: unused variable ‘j’ [-Wunused-variable] ^ user.cpp: In function ‘int main()’: user.cpp:20:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.out","w",stdout); ^ user.cpp:21:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ^ user.cpp:25:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] while( n-- ){ ^ user.cpp:27:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] if( x == 1 ) add( y ); ^