Compilare: user.c: In function ‘B’: user.c:12:5: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(j=q[p++]) ^ user.c: In function ‘main’: user.c:31:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuplaj.in","r",stdin),freopen("cuplaj.out","w",stdout),scanf("%d%d%d",&n,&m,&e); ^ user.c:31:40: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuplaj.in","r",stdin),freopen("cuplaj.out","w",stdout),scanf("%d%d%d",&n,&m,&e); ^ user.c:31:71: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuplaj.in","r",stdin),freopen("cuplaj.out","w",stdout),scanf("%d%d%d",&n,&m,&e); ^ user.c:33:13: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&a[i],&b[i]),r[a[i]]++; ^