Compilare: user.c: In function ‘main’: user.c:24:21: warning: unused variable ‘nr’ [-Wunused-variable] int i, j, n, m, nr; ^ user.c:27:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &m ); ^ user.c:30:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%hd", &v[i][j] ); ^