Compilare: user.cpp: In function ‘void read(int)’: user.cpp:18:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%hd", &h[ i ][ j ] ); ^ user.cpp: In function ‘int main()’: user.cpp:58:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^ user.cpp:72:23: warning: ‘ysol’ may be used uninitialized in this function [-Wmaybe-uninitialized] drum( xsol, ysol ); ^ user.cpp:72:23: warning: ‘xsol’ may be used uninitialized in this function [-Wmaybe-uninitialized]