Compilare: user.c: In function ‘main’: user.c:48:12: warning: unused variable ‘y’ [-Wunused-variable] int x, y, k; ^ user.c:48:9: warning: unused variable ‘x’ [-Wunused-variable] int x, y, k; ^ user.c:28:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( in, "%d%d", &n, &m ); ^ user.c:32:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( in, "%d", &v[ i ] ); ^ user.c:37:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( in, "%d", &teleport[ j ] ); ^ user.c:42:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( in, "%d%d", &q1[ i ], &q2[ i ] ); ^