Compilare: user.cpp: In member function ‘bool myHash::check(int)’: user.cpp:21:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < v[h].size() && v[h][i] != val ) ^ user.cpp:24:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return ( i < v[h].size() ); ^ user.cpp: In member function ‘bool myHash::pop(int)’: user.cpp:33:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < v[h].size() && v[h][i] != val ) ^ user.cpp:36:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( i < v[h].size() ) ^ user.cpp:39:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return ( i < v[h].size() ); ^ user.cpp: In function ‘int main()’: user.cpp:118:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^ user.cpp:121:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &t, &nr ); ^