Language: C++

int a[1111],b[1111],c[1111],d[1111],p[333],i,j,x,y,z;main(){for(;scanf("%d%d%d",a,b,c)&(*a+=*b+*c);){for(i=332;i;p[i--]=2);for(i=0,scanf("%d",p);i++<*p;scanf("%d%d%d%d",a+i,b+i,c+i,d+i));for(i=0;i++<*p;)for(j=0;j++<*p;d[j]?p[a[j]]=p[b[j]]=p[c[j]]=1:(x=p[a[j]]&1)&(y=p[b[j]]&1)?p[c[j]]=0:x&(z=p[c[j]])?p[b[j]]=0:y&z?p[a[j]]=0:0);for(i=0;i<*a;printf("%d\n",p[++i]));}exit(0);}

Compiler output:
a.cc:1:54: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    1 | int a[1111],b[1111],c[1111],d[1111],p[333],i,j,x,y,z;main(){for(;scanf("%d%d%d",a,b,c)&(*a+=*b+*c);){for(i=332;i;p[i--]=2);for(i=0,scanf("%d",p);i++<*p;scanf("%d%d%d%d",a+i,b+i,c+i,d+i));for(i=0;i++<*p;)for(j=0;j++<*p;d[j]?p[a[j]]=p[b[j]]=p[c[j]]=1:(x=p[a[j]]&1)&(y=p[b[j]]&1)?p[c[j]]=0:x&(z=p[c[j]])?p[b[j]]=0:y&z?p[a[j]]=0:0);for(i=0;i<*a;printf("%d\n",p[++i]));}exit(0);}
      |                                                      ^~~~
a.cc: In function 'int main()':
a.cc:1:66: error: 'scanf' was not declared in this scope
    1 | int a[1111],b[1111],c[1111],d[1111],p[333],i,j,x,y,z;main(){for(;scanf("%d%d%d",a,b,c)&(*a+=*b+*c);){for(i=332;i;p[i--]=2);for(i=0,scanf("%d",p);i++<*p;scanf("%d%d%d%d",a+i,b+i,c+i,d+i));for(i=0;i++<*p;)for(j=0;j++<*p;d[j]?p[a[j]]=p[b[j]]=p[c[j]]=1:(x=p[a[j]]&1)&(y=p[b[j]]&1)?p[c[j]]=0:x&(z=p[c[j]])?p[b[j]]=0:y&z?p[a[j]]=0:0);for(i=0;i<*a;printf("%d\n",p[++i]));}exit(0);}
      |                                                                  ^~~~~
a.cc:1:342: error: 'printf' was not declared in this scope
    1 | int a[1111],b[1111],c[1111],d[1111],p[333],i,j,x,y,z;main(){for(;scanf("%d%d%d",a,b,c)&(*a+=*b+*c);){for(i=332;i;p[i--]=2);for(i=0,scanf("%d",p);i++<*p;scanf("%d%d%d%d",a+i,b+i,c+i,d+i));for(i=0;i++<*p;)for(j=0;j++<*p;d[j]?p[a[j]]=p[b[j]]=p[c[j]]=1:(x=p[a[j]]&1)&(y=p[b[j]]&1)?p[c[j]]=0:x&(z=p[c[j]])?p[b[j]]=0:y&z?p[a[j]]=0:0);for(i=0;i<*a;printf("%d\n",p[++i]));}exit(0);}
      |                                                                                                                                                                                                                                                                                                                                                      ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int a[1111],b[1111],c[1111],d[1111],p[333],i,j,x,y,z;main(){for(;scanf("%d%d%d",a,b,c)&(*a+=*b+*c);){for(i=332;i;p[i--]=2);for(i=0,scanf("%d",p);i++<*p;scanf("%d%d%d%d",a+i,b+i,c+i,d+i));for(i=0;i++<*p;)for(j=0;j++<*p;d[j]?p[a[j]]=p[b[j]]=p[c[j]]=1:(x=p[a[j]]&1)&(y=p[b[j]]&1)?p[c[j]]=0:x&(z=p[c[j]])?p[b[j]]=0:y&z?p[a[j]]=0:0);for(i=0;i<*a;printf("%d\n",p[++i]));}exit(0);}
a.cc:1:366: error: 'exit' was not declared in this scope
    1 | int a[1111],b[1111],c[1111],d[1111],p[333],i,j,x,y,z;main(){for(;scanf("%d%d%d",a,b,c)&(*a+=*b+*c);){for(i=332;i;p[i--]=2);for(i=0,scanf("%d",p);i++<*p;scanf("%d%d%d%d",a+i,b+i,c+i,d+i));for(i=0;i++<*p;)for(j=0;j++<*p;d[j]?p[a[j]]=p[b[j]]=p[c[j]]=1:(x=p[a[j]]&1)&(y=p[b[j]]&1)?p[c[j]]=0:x&(z=p[c[j]])?p[b[j]]=0:y&z?p[a[j]]=0:0);for(i=0;i<*a;printf("%d\n",p[++i]));}exit(0);}
      |                                                                                                                                                                                                                                                                                                                                                                              ^~~~
a.cc:1:1: note: 'exit' is defined in header '<cstdlib>'; this is probably fixable by adding '#include <cstdlib>'
  +++ |+#include <cstdlib>
    1 | int a[1111],b[1111],c[1111],d[1111],p[333],i,j,x,y,z;main(){for(;scanf("%d%d%d",a,b,c)&(*a+=*b+*c);){for(i=332;i;p[i--]=2);for(i=0,scanf("%d",p);i++<*p;scanf("%d%d%d%d",a+i,b+i,c+i,d+i));for(i=0;i++<*p;)for(j=0;j++<*p;d[j]?p[a[j]]=p[b[j]]=p[c[j]]=1:(x=p[a[j]]&1)&(y=p[b[j]]&1)?p[c[j]]=0:x&(z=p[c[j]])?p[b[j]]=0:y&z?p[a[j]]=0:0);for(i=0;i<*a;printf("%d\n",p[++i]));}exit(0);}