Compilare: user.c: In function ‘main’: user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp, "%d", &n); ^ user.c:15:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp,"%d", &v[0]); ^ user.c:23:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp,"%d", &v[i]); ^ user.c:16:11: warning: ‘i’ is used uninitialized in this function [-Wuninitialized] v2[0] = i + (v[0] ^ v[0]); ^ user.c:29:24: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] case 2: {if(p<=v2[i-1]) {t++; s=1;} else if(v2[i-1]>v2[i]) {t++; s=1;} break;} ^