Compilare: user.c: In function ‘main’: user.c:34:23: warning: unused variable ‘j’ [-Wunused-variable] int n,m,a,b,t,i,x,j; ^ user.c:37:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&n,&m); ^ user.c:39:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&x); ^ user.c:43:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d" ,&t,&a,&b); ^