Compilare: user.cpp: In function ‘void getAPM()’: user.cpp:118:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; needed && i < candidates.size(); ++i) { ^ user.cpp: In member function ‘void inputReader::getBuffer()’: user.cpp:25:47: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, bufferDim, stdin); ^