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Acception rejection using poisson

/*acception rejection using poisson*/
#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<stdlib.h>
main()
{
      float p[30],r[30],random[30],a;
      int i,j,k,n;
      int count =0;
      int flag=0;
         printf("Enter the number of random numbers  \t e.g 5\n");
      scanf("%d",&n); 
      printf("enter the value of alpha \t e.g 0.2 \n");
      scanf("%f",&a);
      random[0]=0.4357;
      random[1]=0.4146;
      random[2]=0.8353;
      random[3]=0.9952;
      random[4]=0.8004;
     printf("\n");
      p[0]=1;
      system("cls");
      printf("n\t\tR(n+i)\t\tP\t\tAcc/Rej\n");
      i=0;
      p[i+1]= p[0] * random[i];
      while(i<n)
      {
      if(p[i+1] < exp(-a))
        { 
       printf("\n%d\t%f\t%f\t%s",count,random[i],p[i+1],"accept");
           i++;
     p[i+1]= p[0] * random[i];
                               }
       else if(p[i+1] >= exp(-a))
         {   
      printf("\n%d\t%f\t%f\t%s",count,random[i],p[i+1],"reject"); 
                         i++;
                         count++;
                         p[i+1]= p[i]*random[i];
                    }
              }        
  getch();
}

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