Compilare: user.cpp: In function ‘bool transf(short int, short int, short int)’: user.cpp:31:16: warning: variable ‘r’ set but not used [-Wunused-but-set-variable] short int i, r ; ^ user.cpp: In function ‘short int lee(short int, short int, short int)’: user.cpp:66:18: warning: narrowing conversion of ‘(((int)x) + ((int)dir_l[((int)i)]))’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q.push({x+dir_l[i], y+dir_c[i]}); ~^~~~~~~~~ user.cpp:66:30: warning: narrowing conversion of ‘(((int)y) + ((int)dir_c[((int)i)]))’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q.push({x+dir_l[i], y+dir_c[i]}); ~^~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:80:77: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%hd%hd%hd%hd%hd%hd%hd%hd", &p, &n, &m, &t, &l, &c, &k, &s ) ; ^ user.cpp:82:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%hd%hd", &a, &b ) ; ^ user.cpp:87:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%hd", &nr ) ; ^