在网上看到这篇介绍混乱C语言的文章!展示了程序员幽默的一面,细细体会挺有意思的!哈哈,写在这本身收藏了!(后面是一片实现混乱C的教程,教你如何将本身的代码写的本身都看着晕,哈哈哈)程序员
下面的六个程序片断主要完成这些事情:编程
下面的全部程序均可以在GCC下编译经过,只有最后一个须要动用C++的编译器g++才能编程经过。函数
hello1.cspa
#define _________ } #define ________ putchar #define _______ main #define _(a) ________(a); #define ______ _______(){ #define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C) #define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F) #define ____ _(0x72)_(0x6C)_(0x64)_(0x21) #define _____ __ ___ ____ _________ #include<stdio.h> _____
hello2.c code
#include<stdio.h> main(){ int x=0,y[14],*z=&y;*(z++)=0x48;*(z++)=y[x++]+0x1D; *(z++)=y[x++]+0x07;*(z++)=y[x++]+0x00;*(z++)=y[x++]+0x03; *(z++)=y[x++]-0x43;*(z++)=y[x++]-0x0C;*(z++)=y[x++]+0x57; *(z++)=y[x++]-0x08;*(z++)=y[x++]+0x03;*(z++)=y[x++]-0x06; *(z++)=y[x++]-0x08;*(z++)=y[x++]-0x43;*(z++)=y[x]-0x21; x=*(--z);while(y[x]!=NULL)putchar(y[x++]); }
hello3.c教程
#include<stdio.h> #define __(a) goto a; #define ___(a) putchar(a); #define _(a,b) ___(a) __(b); main() { _:__(t)a:_('r',g)b:_('$',p) c:_('l',f)d:_(' ',s)e:_('a',s) f:_('o',q)g:_('l',h)h:_('d',n) i:_('e',w)j:_('e',x)k:_('\n',z) l:_('H',l)m:_('X',i)n:_('!',k) o:_('z',q)p:_('q',b)q:_(',',d) r:_('i',l)s:_('w',v)t:_('H',j) u:_('a',a)v:_('o',a)w:_(')',k) x:_('l',c)y:_('\t',g)z:___(0x0)}
hello4.c递归
int n[]={0x48, 0x65,0x6C,0x6C, 0x6F,0x2C,0x20, 0x77,0x6F,0x72, 0x6C,0x64,0x21, 0x0A,0x00},*m=n; main(n){putchar (*m)!='\0'?main (m++):exit(n++);}
hello5.cci
main(){int i,n[]={(((1<<1)<<(1<<1)<<(1<< 1)<<(1<<(1>>1)))+((1<<1)<<(1<<1))), (((1 <<1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<<( 1<<1)<<(1<<1))+((1<<1)<<(1<<(1>>1)))+ (1 <<(1>>1))),(((1<<1)<<(1<<1)<<(1<<1)<< (1 <<1))-((1<<1)<<(1<<1)<<(1<<(1>>1)))- ((1 <<1)<<(1<<(1>>1)))),(((1<<1)<<(1<<1)<<(1 <<1)<<(1<<1))-((1<<1)<<(1<<1)<<(1<<(1>>1 )))-((1<<1)<<(1<<(1>>1)))),(((1<<1)<< (1 <<1)<<(1<<1)<<(1<<1))-((1<<1)<<(1<<1)<<( 1<<(1>>1)))-(1<<(1>>1))),(((1<<1)<<(1<<1 )<<(1<<1))+((1<<1)<<(1<<1)<<(1<<(1>>1))) -((1<<1)<<(1<<(1>>1)))),((1<<1)<< (1<<1) <<(1<<1)),(((1<<1)<<(1<<1)<<(1<<1)<<(1<< 1))-((1<<1)<<(1<<1))-(1<<(1>>1))),(((1<< 1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<< (1 <<1)<<(1<<(1>>1)))-(1<<(1>>1))), (((1<<1 )<<(1<<1)<<(1<<1)<<(1<<1))- ((1<<1)<< (1 <<1)<<(1<<(1>>1)))+(1<<1)), (((1<<1)<< ( 1<<1)<<(1<<1)<< (1<<1))-((1<<1)<< (1<<1) <<(1<<(1>>1)))-((1<<1) <<(1<< (1>>1)))), (((1<<1)<< (1<<1)<<(1<<1)<< (1<<1))- ((1 <<1)<<(1<<1)<<(1<<1))+((1<<1)<< (1<<(1>> 1)))), (((1<<1)<<(1<<1) <<(1<<1))+(1<<(1 >>1))),(((1<<1)<<(1<<1))+((1<<1)<< (1<<( 1>>1))) + (1<< (1>>1)))}; for(i=(1>>1);i <(((1<<1) <<(1<<1))+((1 <<1)<< (1<<(1>>1 ))) + (1<<1)); i++) printf("%c",n[i]); }
hello6.cpp编译器
下面的程序只能由C++的编译器编译(好比:g++)it
#include <stdio.h> #define _(_) putchar(_); int main(void){int i = 0;_( ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++i)_(++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++i)_(++++++++++++++ i)_(--++i)_(++++++i)_(------ ---------------------------- ---------------------------- ---------------------------- ---------------------------- ----------------i)_(-------- ----------------i)_(++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++ ++++++++++++++++++++++++++i) _(----------------i)_(++++++ i)_(------------i)_(-------- --------i)_(---------------- ---------------------------- ---------------------------- ---------------------------- ---------------------------- ------i)_(------------------ ---------------------------- i)return i;}
下面是一个Step by Step的教程,教你如何把一个清晰的代码变得复杂难懂的。固然,这只是一个“简明教程”了。仍是那句话——“本文仅供朋友们“消遣做乐”,若是你要以为有意思的话,顶个贴。若是你以为没什么意思的话,一笑了之。仅供娱乐而已,没必要太过认真。”
下面是一个找出素数的程序:
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void
primes(
int
cap)
{
int
i, j, composite;
for
(i = 2; i < cap; ++i) {
composite = 0;
for
(j = 2; j * j < i; ++j) {
composite += !(i % j);
}
if
(!composite){
printf
(
"%dt"
, i);
}
}
}
int
main()
{
primes(100);
}
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下面咱们来看看如何把上面这段代码搞得复杂难懂。
一般来讲,for循坏要以while循坏简单一些,上面的程序有二重for循环,咱们不但要把其变成while循环,并且还要把二重循环的变成一重的循环,而后使用大量的if-else语句来判断。
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void
primes(
int
cap)
{
int
i, j, composite, t = 0;
while
(t < cap * cap) {
i = t / cap;
j = t++ % cap;
if
(i <= 1);
else
if
(!j)
composite = j;
else
if
(j == i && !composite)
printf
(
"%dt"
,i);
else
if
(j > 1 && j < i)
composite += !(i % j);
}
}
int
main()
{
primes(100);
}
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递归在某些时候是能够把代码变得简单,但大多数的状况下是把代码变得复杂,并且很没有效率。下面是把上面的while循环变成了递归。变成了递归后,函数的参数都变成3个了。
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void
primes(
int
cap,
int
t,
int
composite)
{
int
i,j;
i = t / cap;
j = t % cap;
if
(i <= 1)
primes(cap,t+1,composite);
else
if
(!j)
primes(cap,t+1,j);
else
if
(j == i && !composite)
(
printf
(
"%dt"
,i), primes(cap,t+1,composite));
else
if
(j > 1 && j < i)
primes(cap,t+1, composite + !(i % j));
else
if
(t < cap * cap)
primes(cap,t+1,composite);
}
int
main()
{
primes(100,0,0);
}
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关于如何弄乱代码结构,其中一个小技巧是,使用“?”表达式代替if-else语句。
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void
primes(
int
m,
int
t,
int
c)
{
int
i,j;
i = t / m;
j = t % m;
(i <= 1) ? primes(m,t+1,c) : (!j) ? primes(m,t+1,j) : (j == i && !c) ?
(
printf
(
"%dt"
,i), primes(m,t+1,c)) : (j > 1 && j < i) ?
primes(m,t+1,c + !(i % j)) : (t < m * m) ? primes(m,t+1,c) : 0;
}
int
main()
{
primes(100,0,0);
}
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临时变量通常用来保存反复使用的一个表达式的值。使用大量重复的表达式来取消这些临时变量的也可让代码复杂起来。
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void
primes(
int
m,
int
t,
int
c)
{
((t / m) <= 1) ? primes(m,t+1,c) : !(t % m) ? primes(m,t+1, t % m) :
((t % m)==(t / m) && !c) ? (
printf
(
"%dt"
,(t / m)), primes(m,t+1,c)) :
((t % m)> 1 && (t % m) < (t / m)) ? primes(m,t+1,c + !((t / m) % (t % m))) :
(t < m * m) ? primes(m,t+1,c) : 0;
}
int
main()
{
primes(100,0,0);
}
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咱们知道,下划线是合法的变量名,因此,咱们不妨用__,___,____来代替m,t,c。函数名也可使用下划线来代替。让咱们来看看求素数的函数能变成什么。
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void
_(
int
__,
int
___,
int
____)
{
((___ / __) <= 1) ? _(__,___+1,____) : !(___ % __) ? _(__,___+1,___ % __) :
((___ % __)==(___ / __) && !____) ? (
printf
(
"%dt"
,(___ / __)),
_(__,___+1,____)) : ((___ % __) > 1 && (___ % __) < (___ / __)) ?
_(__,___+1,____ + !((___ / __) % (___ % __))) : (___ < __ * __) ?
_(__,___+1,____) : 0;
}
int
main()
{
_(100,0,0);
}
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在上面的程序中,还有一些常量,你能够经过增长一个宏定义,或是增长一个函数的形参来取代这一常量。
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void
_(
int
__,
int
___,
int
____,
int
_____)
{
((___ / __) <= _____) ? _(__,___+_____,____,_____) : !(___ % __) ? _(__,___+_____,___ % __, _____) :
((___ % __)==(___ / __) && !____) ? (
printf
(
"%dt"
,(___ / __)),
_(__,___+_____,____,_____)) : ((___ % __) > _____ && (___ % __) < (___ / __)) ?
_(__,___+_____,____,_____ + !((___ / __) % (___ % __))) : (___ < __ * __) ?
_(__,___+_____,____,_____) : 0;
}
int
main() {
_(100,0,0,1);
}
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程序到这里应该差很少了。仍是那句话——“每个程序员都有把源代码弄复杂的潜质”,你们好自为之。