Compilare: user.c: In function ‘main’: user.c:9:34: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] long long a,b,q,i,t,cnt,x,nr,ok,div,pdiv,j; ^ user.c:10:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld%lld",&a,&b,&q); ^ user.c:13:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld",&t,&x); ^ user.c:40:19: warning: ‘nr’ may be used uninitialized in this function [-Wmaybe-uninitialized] nr+=j; ^