Rule 30 is a code-poem included in code {poems}.
The requirements for submission were:
– 0,5 KB maximum size.
– Required to compile.
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| //c++ rule30.cpp -o rule30 | |
| #include | |
| int i,j,l,r,o[80]={},t[80]={}; | |
| char c; | |
| int main(){ | |
| std::cout<<"enter character, then return >> "; | |
| std::cin>>c; | |
| o[39]=1; | |
| while(1){ | |
| for(j=0;j<80;j++){ | |
| if(j) l=o[j-1]; else l=o[79]; | |
| if(j!=79) r=o[j+1]; else r=o[0]; | |
| if(o[j]) | |
| if(l) t[j]=0; else t[j]=1; | |
| else | |
| if(l^r) t[j]=1; else t[j]=0; | |
| std::cout<<((o[j]?" ":&c)); | |
| } | |
| for(;--j>=0;) o[j]=t[j]; | |
| std::cout.flush(); | |
| usleep(50000); | |
| } | |
| } |
by You may or may not additionally need the -ansi flag to compile.