Compilare: user.c: In function ‘main’: user.c:10:23: warning: unused variable ‘k’ [-Wunused-variable] int n,t,v,st,dr,i,k,s; ^ user.c:10:13: warning: unused variable ‘v’ [-Wunused-variable] int n,t,v,st,dr,i,k,s; ^ user.c:18:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &n, &s, &t ); ^ user.c:20:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &c[i], &p[i] ); ^