Compilare: user.c: In function ‘main’: user.c:14:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d" ,&n,&nr,&t); ^ user.c:16:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d" ,&v[i][0],&v[i][1],&v[i][2]); ^