Compilare: user.c: In function ‘main’: user.c:33:16: warning: unused variable ‘sum’ [-Wunused-variable] int c, sum=0; ^ user.c:33:13: warning: unused variable ‘c’ [-Wunused-variable] int c, sum=0; ^ user.c:13:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&p); ^ user.c:14:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&n); ^ user.c:19:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&v[i]); ^ user.c:35:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&v[i]); ^