Add 2020 source files for real

2020/kurdyukov3/prog.extra.c

@@ -0,0 +1,80 @@
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef IDX
+#define IDX 1
+#endif
+#if IDX==1 // square
+
+  int main(){;unsigned
+  a,i=1,j=0,t[256];for
+  (srand(time(0));i;)j
+  ?(--i||~a>>8?putchar
+  (i?t[j]:a),i++:0)?t[
+  j]=t[--i],j=i>2?rand
+  ()%(i-2)+2:1,1:j--:(
+  a=getchar(),(1==a>>7
+  ||26>(a|32)-97)&&256
+  >i?t[i++]=a,0:j++);}
+
+#elif IDX==2
+
+  int main(){;unsigned
+  a=0,i,j,t[256];srand
+  (time(0));for(;256>a
+  ;){for(i=j=0;(26>((a
+  =getchar())|32)-97||
+  1==a>>7)&&i<256;)t[i
+  ++]=a;;for(;i||~a>>8
+  ?putchar(i?t[j]:a),i
+  --:0;j=i>1?rand()%(i
+  -1)+1:0)t[j]=t[i];}}
+
+#elif IDX==3 // round
+
+       int main()
+    {unsigned a,i=1,
+  j=0,t[64];for(srand(
+  time(0));i;)j?(--i||
+ ~a>>8?putchar(i?t[j]:a
+ ),i++:0)?t[j]=t[--i],j
+ =i>2?rand()%(i-2)+2:1,
+  1:j--:(a=getchar(),(
+  26>(a|32)-97||1==a>>
+    7)&&i<64?t[i++]=
+       a,0:j++);}
+
+#elif IDX==4
+
+       int main()
+    {unsigned a,i,j=
+  a=0,t[64];for(srand(
+  time(0)),i=0;~a>>8;)
+ {for(;a=getchar(),(26>
+ (a|32)-97||1==a>>7)&&i
+ <64;)t[i++]=a;;for(;!i
+  &&a>>8?0:putchar(i?t
+  [j]:a),i;j=i>1?rand(
+    )%(i-1)+1:0)t[j]
+       =t[--i];}}
+
+#elif IDX==5 // profile
+
+          int main
+        (){;unsigned
+       a=0,i,j,t[64];
+       srand(time(0))
+       ;for(;a<256;~a
+       >>8?putchar(a)
+       :0){for(i=j=0;
+        a=getchar(),
+         ((a|32)-97
+          <26||a>>
+          7==1)&&i
+       <64;)t[i++]=a;
+ for(i-=1;i+1;putchar(t[j])
+  ,t[j]=t[i--],j=i?rand()%
+     i+1:0);}return!a;}
+
+#endif