Compilare: user.c: In function ‘main’: user.c:9:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&m); ^ user.c:11:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&v[i]); ^ user.c:12:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&v2[0],&v2[1],&v2[2]); ^ user.c:13:34: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] for (i=0;i<v2[2];i++) fscanf (fin,"%d",&v2[3]); ^ user.c:21:20: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&v2[0],&v2[1],&v2[2]); ^ user.c:22:42: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] for (j=0;j<v2[2];j++) fscanf (fin,"%d",&v2[3]); ^ user.c:25:20: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&v2[0],&v2[1],&v2[2]); ^ user.c:26:42: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] for (j=0;j<v2[2];j++) fscanf (fin,"%d",&v2[3]); ^