Compilare: user.cpp: In function ‘bool IPOTS(int, int, int, int, int, int)’: user.cpp:71:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(xa==xc) ^ user.cpp:76:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(ya==yc) ^ user.cpp: In member function ‘char InParser::read_ch()’: user.cpp:15:38: 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); ^