After reading these C language examples, you must be like me and say 5 "wow"s!!!!

Example 1

First, let's see how the master calculated pi.

#include <stdio.h>
long a=10000,b=0,c=10000,d,e,f[10001],g;
void main()
{
    for(;b != c; f[b++] = a/5);
    for(; d=0,g=c*2,c>5000; c--,printf('%.4d',e+d/a),e=d%a)
    for(b=c;d+=f[b]*a,f[b]=d%--g,d/=g--,--b;d*=b); 
} 

Execution Result:

Teacher Peng is really at a loss for words.

first

Example 2

Simulate the Fibonacci sequence printed by a Turing machine

#include <stdio.h>
#define f int
#define v (void)printf(
#define x ),exit(1);
#define y ){if(n)c=z(n,u),u=n,n=c;o[i]=n?'0'+(1&*n):'0';}
#define z(a,b) (f*)(~1&*a^(f)b)
#define k(l) if(!(l=(f*)malloc(sizeof(l))))v 23+m x if(1&(f)l)v 39+m x*l=
r(p,q,d)f*p,*q;{char o[81];f*n=p,i=39,*c,*u=d?q:z(p,q);o[40]='0'+(1&*p);
for(;i>=0;i--y u=d?z(p,q):q;n=p;for(i=41;i<79;i++y o[i++]='\r';o[i++]=0;
v o);(void)fflush(stdout);sleep(1);}
main(a,c)char**c;{char*u,*malloc(),*m=
'Usage: black [string]\n\0No more memory\n\0Unusable memory alignment\n\0jt,s@m@ (beleY%XX&Yz {z&z}i|R(|)*((.)i)hiniFiGJ%FG.JJgJ: ;;&;z {z&z}-RS/ROiOV OP+PsaPh+ijainnjmamfmfAlnnnnphppopv%vvgv.aABiB1/BVP11/1.%..&.OhrR-WV V1#1VP1CcC0R\
\n\n'CVP0\n!\n\n'\nEaEEnEamat!akckk'kwaww'wz,zzozEit +',
*n=m;f*q,*p=0,*g,b=3,d;
if(a>2)v m x n=a>1?c[1]:n;
/*v'\t\t\t\t\tV\n');*/
k(q)0;u=n;a=~1&'j';
while(a!='x'){
 /*r(q,p,b);*/
 for(;;u+=3){
  u= *u?u:n;
  if((~1&*u)==a&&(1&*q)<<1==(2&u[2]))break;
 }
 a=~1&u[1];
 d=(8&u[2])>>3;
 if(16&u[2])putchar(u[3]);
 if(4&u[2])*q|=1;else*q&=~1;
 if(b==d)g=p;else{
  g=z(q,p);
  if(!g){k(g)(f)q;*q^=(f)g;}
 }
 p=q;q=g;b=1-d;
}
/*r(q,p,b);v'\n');*/exit(0);
}

Execution Result:

double sink

Example 3

Look at the following code,

At first glance I thought it was a copy error.

#include <stdio.h>
main(int t,int _,char* a)
{
    return !0<t?t<3?main(-79,-13,a+main(-87,1-_, 
main(-86,0,a+1)+a)):1,t<_?main(t+1,_,a):3,main(-94,-27+t,a)&&t==2?_<13? 
main(2,_+1,'%s %d %d\n'):9:16:t<0?t<-72?main(_,t, 
'@n'+,#'/*{}w+/w#cdnr/+,{}r/*de}+,/*{*+,/w{%+,/w#q#n+,/#{l+,/n{n+,/+#n+,/#;#q#n+,/+k#;*+,/'r :'d*'3,}{w+K w'K:'+}e#';dq#'l q#'+d'K#!/+k#;q#'r}eKK#}w'r}eKK{nl]'/#;#q#n'){)#}w'){){nl]'/+#n';d}rw' i;# ){nl]!/n{n#'; r{#w'r nc{nl]'/#{l,+'K {rw' iK{;[{nl]'/w#q#n'wk nw' iwk{KK{nl]!/w{%'l##w#' i; :{nl]'/*{q#'ld;r'}{nlwb!/*de}'c ;;{nl'-{}rw]'/+,}##'*}#nc,',#nw]'/+kd'+e}+;#'rdq#w! nr'/ ') }+}{rl#'{n' ')# }'+}##(!!/') 
:t<-50?_==*a?putchar(a[31]):main(-65,_,a+1):main((*a=='/')+t,_,a+1) 
:0<t?main(2,2,'%s'):*a=='/'||main(0,main(-61,*a, 
'!ek;dc i@bK'(q)-[w]*%n+r3#l,{}:\nuwloca-O;m .vpbks,fxntdCeghiry'),a+1);
}

But this code has no problem and can be compiled.

Execution Result:

Treble

The result of the execution turned out to be a poem!

The author is Ian Phillipps .

Example 4

This little train, full of performance art, has made Zhong Yi start to completely doubt his life!

quadra what the hell!

The results are as follows:

peng@ubuntu:~/test$ ./marshall 
      choo choo

Example 5

If you still think it’s just so so, then take a look at the following code, which is simply a perfect combination of art and code.

I believe the author of this code must be a greasy, fat, otaku with a full beard ,

Otherwise, how could one draw such a shocking, world-shaking, incredibly beautiful, and so kawaii little loli!

The key is that he can actually run:

The painting turned out to be snowflakes!

Penta

These codes are some winning works of IOCCC [The International Obfuscated C Code Contest (International C Code Contest) is an international programming competition]. If you are interested, you can search for it.

There is no doubt that these masters are the world's top C language programmers, all god-like and legendary.

We will not discuss the principles of these codes here (you can search the Internet for analysis of these codes) .

Zhongyi is not encouraging everyone to write such code.

On the contrary, what I want to tell you is:

If a master writes code like this, it's a classic. If you write code like this, it's garbage!

So between trash and classic, you need to make a choice.

The C language is profound and extensive. Dear programmers, learn it and cherish it!