Compilare: user.cpp:65:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] InputReader fin("secv5.in"); ^ user.cpp: In function ‘int main()’: user.cpp:71:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= n; i++) ^ user.cpp: In member function ‘void InputReader::adv()’: user.cpp:19:25: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf, DIM, 1, f); ^ user.cpp: In constructor ‘InputReader::InputReader(char*)’: user.cpp:27:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf, DIM, 1, f); ^