Eroare de compilare: user.c: In function ‘main’: user.c:8:9: error: ‘j’ undeclared (first use in this function) for(j=i+1;j<n;j++) ^ user.c:8:9: note: each undeclared identifier is reported only once for each function it appears in user.c:4:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("inv.in","r",stdin),freopen("inv.out","w",stdout),scanf("%d",&n); ^ user.c:4:40: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("inv.in","r",stdin),freopen("inv.out","w",stdout),scanf("%d",&n); ^ user.c:4:68: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("inv.in","r",stdin),freopen("inv.out","w",stdout),scanf("%d",&n); ^ user.c:6:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",a+i); ^