Compilare: user.cpp: In function ‘int main()’: user.cpp:14:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&n,&m); ^ user.cpp:16:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%s " ,mat[i] + 1); ^ user.cpp:19:19: warning: ‘d’ may be used uninitialized in this function [-Wmaybe-uninitialized] int f, s, d; ^ user.cpp:39:17: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(s + dir != f && (mat[1][s + dir] != '0' && mat[1][s + dir] != 'D')) { ^ user.cpp:52:52: warning: ‘f’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d" ,max(cnt + 1, t) + abs(d - f)); ^