Compilare: main.cpp: In member function 'char InParser::read_ch()': main.cpp:21:38: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^ main.cpp: In function 'int main()': main.cpp:182:63: warning: 'solTask3' is used uninitialized in this function [-Wuninitialized] fout << solTask1 << ' ' << solTask2 << ' ' << solTask3 << '\n'; ^~~~