#include <stdio.h>
#include <stdlib.h>
#define as 200
#define n 3000
int main(){
char a[as+2]; int fc=0;
{int j=as+2; while(j--) a[j]=0;}
{int j = n*as; while(j--) {int k=1+(rand()%as);
  if(a[k] || (!a[k-1] && !a[k+1])) {a[k] = !a[k]; ++fc;}}}
{int c=0; {int j=as+2; while(j--) c += a[j];}
{int j; for(j=0; j<as+2; ++j) putchar('0'+a[j]);
   printf("\n%d bits, work= %d, den = %6.3f, laxity = %6.3f\n",
      as, n, c/(double)(as+2), fc/(double)(n*as));}}}
 
/* yields:
01010100010100100101010000000000100000010101010101010100000001001010001000010000
00000000100010010010010101000010100000000100000000001000010001000010010101010001
010000101000101000001010010000001010000010
200 bits, work= 3000, den =  0.262, laxity =  0.554
*/