Compilare: user.cpp: In function ‘void Read()’: user.cpp:133:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &n, &m, &t); ^ user.cpp:137:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &y, &x, &type); ^ user.cpp: In function ‘int Surface(int, int, int)’: user.cpp:57:9: warning: ‘dy’ may be used uninitialized in this function [-Wmaybe-uninitialized] int dy; ^