//program for bubblesort routine

# include <stdio.h>
# include <stdlib.h>
void bubblesort(int array[],int size);

void main()
{
int values[10],j;
for(j=0;j<10;j++)
values[j] = rand()%100;
/*unsorted*/
printf("\nUnsorted values.\n");
for(j=0;j<10;j++)
printf("%d ",values[j]);
/*sorted*/
printf("\nSorted values.\n");
bubblesort(values,10);
for(j=0;j<10;j++)
printf("%d ",values[j]);

}

void bubblesort(int array[],int size)
{
int tmp ,i,j;
for(i = 0;i <size;i++)
for(j=0;j < size;j++)
if(array[i] < array[j])
{
tmp = array[i];
array[i] = array[j];
array[j] = tmp;
}
}

//program to check whether a string is a palindrome

#include<stdio.h>
#include<conio.h>
#include<string.h>
void main(void)
{
char a[50],b[50];
clrscr();
printf("Enter the string:");
gets(a);
strcpy(b,a);
strrev(a);
if(strcmp(b,a) == 0)
{
printf("The given string is a palindrome!!!");
}
else
{
printf("The given string is not a palindrome!!!");
}
getch();
}

//Program to count the number of words in an input text file

#define NULL 0
FILE *fpt;
void main()
{
 char name[20],c;
 int nw=0;
 clrscr();
 printf("Enter the name of file to be checked:-  ");
 gets(name);
 fpt=fopen(name,"r");
 if (fpt==NULL)
 {
  printf("ERROR - can/'t open file %s",name);
  getch();
  exit(0);
 }
 else
 {
 while ((c=getc(fpt))!=EOF)
 {
  switch(1)
  {
   case 1:
 if (c==' ')
 {
   point: // do
 //    nw=nw+1-1;
  while((c=getc(fpt))==' ');

  if (c!=' ')
nw=nw+1;
  if(c=='
')nw--;
 }


 //  case 3:
 if(c=='
'){
   goto point;}

  }  } }
 printf("The no. of words in %s is %d.  ",name,nw);
 getch();
}

//Program to Count Blanks,Tabs and Newlines

#include<stdio.h>
int main(void)
{
        int nb,nt,nl,c;
        nb=nt=nl=0;

while((c=getchar())!=EOF)
{
if(c==' ')
++nb;
if(c==' ')
++nt;
if(c=='
')
++nl;
}
printf("No. of Blanks is %d,No. of Tabs is %d and No. of Newlines is %d",nb,nt,nl);
return 0;
}

//implement program for Merge sort

#include<stdio.h>

void getdata(int arr[],int n)
{    int i;
      printf("enter the data:");
  for(i=0;i<n;i++)
    {
     scanf("%d",&arr[i]);
    }
}

void display(int arr[],int n)
{
 int i;
 printf(" ");
 for(i=0;i<n;i++)
    {
     printf("%d ",arr[i]);
    }
 getchar();
}

void sort(int arr[],int low,int mid,int high)
{
 int i,j,k,l,b[20];
 l=low;
 i=low;
 j=mid+1;
 while((l<=mid)&&(j<=high))
   {
    if(arr[l]<=arr[j])
      {
       b[i]=arr[l];
       l++;
      }
    else
      {
       b[i]=arr[j];
       j++;
      }
    i++;
   }
 if(l>mid)
   {
    for(k=j;k<=high;k++)
       {
        b[i]=arr[k];
        i++;
       }
   }
 else
   {
    for(k=l;k<=mid;k++)
       {
        b[i]=arr[k];
        i++;
       }
   }
 for(k=low;k<=high;k++)
    {
     arr[k]=b[k];
    }
}

void partition(int arr[],int low,int high)
{
 int mid;
 if(low<high)
   {
    mid=(low+high)/2;
    partition(arr,low,mid);
    partition(arr,mid+1,high);
    sort(arr,low,mid,high);
   }
}
void main()
{
 int arr[20];
 int n;
 printf("Enter number of data:");
 scanf("%d",&n);
 getdata(arr,n);
 partition(arr,0,n-1);
 display(arr,n);
 getchar();
}

//program to prints the Fibonacci series

#include<stdio.h>
#include<conio.h>
void main(void)
{
int i,j,k,n;
clrscr();
i=0;
j=1;
        printf("Fibonacci series is :--");
printf("%d %d ",i,j);
for(n=0;n<=5;n++)
{
k=i+j;
i=j;
j=k;
printf("%d ",k);
}
getch();
}

#include<stdio.h>
#include<conio.h>
#include<graphics.h>

void main()
{ 
int gd=DETECT,gm,i,j;
int a[20][20]=
{0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0},
{1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0},
{1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,1,1,1,0},
{1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0},
{0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0},
{0,0,1,0,0,0,1,0,0,0,0,0,1,0,0,0,0,1,0,0},
{0,0,0,1,1,1,0,0,0,0,0,0,0,1,1,1,1,0,0,0}};

#include <stdio.h>
#include <conio.h>
#include <graphics.h>

main()
{
int n,i,j,k,gd,gm,dy,dx;
int x,y,temp;
int a[20][2],xi[20];
float slope[20];

clrscr();
printf("\n\n\tEnter the no. of edges of polygon : ");
scanf("%d",&n);
printf("\n\n\tEnter the cordinates of polygon :\n\n\n ");

for(i=0;i<n;i++)
{
printf("\tX%d Y%d : ",i,i);
scanf("%d %d",&a[i][0],&a[i][1]);
}

a[n][0]=a[0][0];
a[n][1]=a[0][1];
detectgraph(&gd,&gm);
initgraph(&gd,&gm,"c:\\tc\\bgi");

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<math.h>
#include<stdlib.h>

int xp[2],yp[2],z;
void display();
void translate();
void scaling();
void rotation();
void matrixmul(int [4][4]);

void main()
{
int gd=DETECT,gm;
int ch,i;
initgraph(&gd,&gm,"c:\\tc\\bgi");
for(i=0;i<2;i++)
{
printf("\nEnter X-coordinate of vertex %d : ",i+1);
scanf("%d",&xp[i]);
printf("\nEnter Y-coordinate of vertex %d : ",i+1);
scanf("%d",&yp[i]);
}
printf("\nEnter The Z-axis For 3d Figure : ");
scanf("%d",&z);
clrscr();
cleardevice();
display(xp,yp);
getche();

#include<stdio.h>
#include<math.h>
#include<graphics.h>
main()
{
int x1,y1,x2,y2,gd,gm;
int ymax,a[4][8];
float par[4][4],b[4][8];
int i,j,k,m,n,p;
int xp, yp, zp, x, y, z;

a[0][0] = 100; a[1][0] = 100; a[2][0] = -100;
a[0][1] = 200; a[1][1] = 100; a[2][1] = -100;

a[0][2] = 200; a[1][2] = 200; a[2][2] = -100;
a[0][3] = 100; a[1][3] = 200; a[2][3] = -100;

a[0][4] = 100; a[1][4] = 100; a[2][4] = -200;
a[0][5] = 200; a[1][5] = 100; a[2][5] = -200;

a[0][6] = 200; a[1][6] = 200; a[2][6] = -200;
a[0][7] = 100; a[1][7] = 200; a[2][7] = -200;

#include<stdio.h>
#include<math.h>
#include<graphics.h>
main()
{
int x1,y1,x2,y2,gd,gm;
int ymax,a[4][8];
float par[4][4],b[4][8];
int i,j,k,m,n,p;
double L1,phi;

a[0][0] = 100; a[1][0] = 100; a[2][0] = 100;
a[0][1] = 200; a[1][1] = 100; a[2][1] = 100;

a[0][2] = 200; a[1][2] = 200; a[2][2] = 100;
a[0][3] = 100; a[1][3] = 200; a[2][3] = 100;

a[0][4] = 100; a[1][4] = 100; a[2][4] = 200;
a[0][5] = 200; a[1][5] = 100; a[2][5] = 200;

a[0][6] = 200; a[1][6] = 200; a[2][6] = 200;
a[0][7] = 100; a[1][7] = 200; a[2][7] = 200;

phi = (double) (3.14*45.0)/180 ;
L1 = 0.5;

#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <time.h>
#include <dos.h>

int main(void)
{
int gd=DETECT,gm;
int cenx,ceny;
float Pk,a,b,x,y;
clrscr();

printf("\n\n Enter 'a' and 'b': ");
scanf("%f%f",&a,&b);
initgraph(&gd,&gm,"c:\\tc\\bgi");
cenx=getmaxx()/2;
ceny=getmaxy()/2;

Pk=b*b-b*a*a+0.25*a*a;
x=0;
y=b;
putpixel(cenx+x,ceny+y,WHITE);
putpixel(cenx+x,ceny-y,WHITE);
putpixel(cenx-x,ceny+y,WHITE);
putpixel(cenx-x,ceny-y,WHITE);

while (2*x*b*b <= 2*y*a*a)
{
if (Pk<0)
{
x=x+1;
y=y;
Pk=Pk+2*x*b*b+3*b*b;
}
else
{
x=x+1;
y=y-1;
Pk=Pk+2*x*b*b+3*b*b-2*y*a*a+2*a*a;
}
putpixel(cenx+x,ceny+y,WHITE);
putpixel(cenx+x,ceny-y,WHITE);
putpixel(cenx-x,ceny+y,WHITE);
putpixel(cenx-x,ceny-y,WHITE);
delay(40);
}

#include<graphics.h>
#include<dos.h>
#include<conio.h>
#include<stdlib.h>

void main()
{
int gd, gm ;
int x1 , y1 , x2 , y2 ;
int wxmin,wymin,wxmax, wymax ;
float u1 = 0.0,u2 = 1.0 ;
int p1 , q1 , p2 , q2 , p3 , q3 , p4 ,q4 ;
float r1 , r2 , r3 , r4 ;
int x11 , y11 , x22 , y22 ;
clrscr();
printf("Enter the windows left xmin , top boundry ymin\n");
scanf("%d%d",&wxmin,&wymin);
printf("Enter the windows right xmax ,bottom boundry ymax\n");
scanf("%d%d",&wxmax,&wymax);
printf("Enter line x1 , y1 co-ordinate\n");
scanf("%d%d",&x1,&y1);
printf("Enter line x2 , y2 co-ordinate\n");
scanf("%d%d",&x2,&y2);
printf("liang barsky express these 4 inequalities using lpk<=qpk\n");
p1 = -(x2 - x1 ); q1 = x1 - wxmin ;
p2 = ( x2 - x1 ) ; q2 = wxmax - x1 ;
p3 = - ( y2 - y1 ) ; q3 = y1 - wymin ;
p4 = ( y2 - y1 ) ; q4 = wymax - y1 ;
printf("p1=0 line is parallel to left clipping\n");
printf("p2=0 line is parallel to right clipping\n");
printf("p3=0 line is parallel to bottom clipping\n");
printf("p4=0 line is parallel to top clipping\n");

# include<stdio.h>
# include<conio.h>
# include<graphics.h>
# include<math.h>

void main()
{
 int gd=DETECT,gm;
 int r,x,y,p,xc=320,yc=240;
initgraph(&gd,&gm,"C:\\TC\\BGI");
cleardevice();

printf("Enter the radius ");
scanf("%d",&r);

x=0;
y=r;
putpixel(xc+x,yc-y,1);
p=3-(2*r);
for(x=0;x<=y;x++)
{
if (p<0)
{
y=y;
p=(p+(4*x)+6);
}
else
{
y=y-1;
p=p+((4*(x-y)+10));
}

putpixel(xc+x,yc-y,1);
putpixel(xc-x,yc-y,2);
putpixel(xc+x,yc+y,3);
putpixel(xc-x,yc+y,4);
putpixel(xc+y,yc-x,5);
putpixel(xc-y,yc-x,6);
putpixel(xc+y,yc+x,7);
putpixel(xc-y,yc+x,8);

}
getch();
closegraph();
}

import java.io.*;
import java.util.*;
class cafe
{
public static void main(String args[])throws IOException
{
InputStreamReader isr=new InputStreamReader(System.in);
BufferedReader bin=new BufferedReader(isr);
int i,j,k=0,kk,run,counter;
int n=6,m= 5,s=6;
double se[]=new double[10];
int seed=12345;
double r,iat=0,st=0,nat,wt=0,cwt;
double p[]={0.0,0.05,0.4,0.65,0.8,0.9,0.97,1.0};
double at[]={0,0.5,1,1.5,2,2.5,3};
double f[]={0,0.05,0.3,0.65,0.85,1.0};
double t[]={1,2,3,4,5};
Random randy = new Random(12345);

System.out.println("Enter the value of run:");
run=Integer.parseInt(bin.readLine());
for(j=0;j<=s;++j)
{

randy.nextInt(12345);
counter=0;
nat=0;
cwt=0;
for(i=1;i<=j;++i)
{
se[i]=0;
}
cwt=0;
counter=0;
for(counter=1;counter<=run;++counter)
{
r=randy.nextDouble()/32768.0;
for(i=0;i<=n;++i)
{
if(r>p[i] && r<=p[i+1])
iat=at[i];
}
r=randy.nextDouble()/32768.0;
for(i=0;i<=m;++i)
{
if(r>f[i]  && r<=f[i+1])
st=t[i];
}
nat=nat+iat;
double  min=99.9;
for(i=1;i<=j;++i)
{
if(se[i]<=min)
{
min=se[i];
k=i;
}
}
if(nat<=min )
{
se[k]=min+st;
wt=(float)min-nat;
}
else
se[k]=nat+st;
cwt=(float)cwt+wt;
}
System.out.println("server"+" "+" Total arrival" +" " +  "Average waiting time  ");
System.out.println(j+"     "+counter+"   "+(cwt/run)+"    ");
if((cwt/run)<=2)
break;
}

#include<conio.h>
#include<iostream.h>
#include<stdlib.h>
#include<iomanip.h>

void main()
{
clrscr();
int i,j,c,rart[20],rsrt[20],art[20],srt[20],srtb[20],srte[20],cuwq[20],cuss[20],idts[20];
float pa[9],ps[7],iart;
int wtime=0;
float wcust=0.0;
float tservice=0.0;
float tidle=0.0;
float time_arr=0.0;
float time_spent=0.0;
cout<<"Enter no of inter arrival times ( less than 8 minutes)";
cin>>iart;
pa[0]=0;ps[0]=0;
for(i=1;i<=iart;i++)
pa[i]=(float)((1/iart)*1000);

for(i=1;i<=6;i++)
{
cout<<"\nEnter probability for service time "<<i<<" minute";
cin>>ps[i];
ps[i]*=100;
}
cout<<"Enter number of customers (number should be less than 20)";
cin>>c;

import java.io.*;
import java.util.*;
class randomuni
{ 
  public static void main(String args[])throws IOException
  
  { int i,j;
    int r[]=new int[100];
    
    int arr1[]=new int[100];
    BufferedReader b=new BufferedReader(new InputStreamReader(System.in));
    
    System.out.println("Random number generated using in built function ");
    Random randomGenerator = new Random();
    for (i = 0; i < 100; i++)
    {
      int randomInt = randomGenerator.nextInt(100);
      arr1[i]=randomInt;
      System.out.print(randomInt+" ");
    }

    System.out.println("\nRandom number generated using linear congruential method ");
    System.out.println("Enter the values of X0,a,c and m \n");
    int xo=Integer.parseInt(b.readLine());
    int a=Integer.parseInt(b.readLine());
    int c=Integer.parseInt(b.readLine());
    int m=Integer.parseInt(b.readLine());

    for(i=0;i<100;i++)
    {
    int rand=((a*xo+c)%m);
    r[i]=rand;
    System.out.print(r[i]+" ");
    xo=rand;
    }
    System.out.println("\nSelect any method to test uniformity--1.kolmogorav  2.chi square ");
    i=Integer.parseInt(b.readLine());
    switch(i)
    {
     case 1:double dplus,dminus,dplmax=0,dmimax=0,d,cv=0.410;
            for(i=0;i<99;i++)
            { for(j=i+1;j<100;j++)
              {  if(r[i]>r[j])
                 { int temp=r[i];
                   r[i]=r[j];
                   r[j]=temp; 
                 }
              }
            } 
 

import java.io.*;
import java.util.*;
class randomind
{
  public static void main(String args[])throws IOException
 
  { int i,j;
    int r[]=new int[10];
    double u,var2,var,z,cv=1.96,n1=0,n2=0,mean=49.5;
    int run[]=new int[10];
    int ar=0;
    int arr1[]=new int[10];
    BufferedReader b=new BufferedReader(new InputStreamReader(System.in));
   
    System.out.println("Random number generated using in built function ");
    Random randomGenerator = new Random();
    for (i = 0; i < 10; i++)
    {
      int randomInt = randomGenerator.nextInt(100);
      arr1[i]=randomInt;
      System.out.print(randomInt+" ");
    }

    System.out.println("\nRandom number generated using linear congruential method ");
    System.out.println("Enter the values of X0,a,c and m \n");
    int xo=Integer.parseInt(b.readLine());
    int a=Integer.parseInt(b.readLine());
    int c=Integer.parseInt(b.readLine());
    int m=Integer.parseInt(b.readLine());

import java.io.*;

import java.util.*;
class randomgen
{ 
  public static void main(String args[])throws IOException
  { 
    int i;
    int r[]=new int[10];
    int arr1[]=new int[10];
    BufferedReader b=new BufferedReader(new InputStreamReader(System.in));
    
    System.out.println("Random number generated using in built function ");
    Random randomGenerator = new Random();
    for (i = 0; i < 10; i++)
    {
      int randomInt = randomGenerator.nextInt(100);
      arr1[i]=randomInt;
      System.out.print(randomInt+" ");
    }
    System.out.println("\nRandom number generated using linear congruential method ");
    System.out.println("Enter the values of X0,a,c and m \n");
    int x=Integer.parseInt(b.readLine());
    int a=Integer.parseInt(b.readLine());
    int c=Integer.parseInt(b.readLine());
    int m=Integer.parseInt(b.readLine());
    for(i=0;i<10;i++)
    {
      int rand=((a*x+c)%m);
      r[i]=rand;
      System.out.print(r[i]+" ");
      x=rand;
    }
  }     
}

import java.io.*;
class apriori
{ 
public static void main(String []arg)throws IOException
{
int i,j,m=0;
int t1=0;
BufferedReader b=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the number of transaction :");
int n=Integer.parseInt(b.readLine());
System.out.println("items :1--Milk 2--Bread 3--Coffee 4--Juice  5--Cookies  6--Jam");
int item[][]=new int[n][6];
for(i=0;i<n;i++)
 for(j=0;j<6;j++)
   item[i][j]=0;
String[] itemlist={"MILK","BREAD","COFFEE","JUICE","COOKIES","JAM"};
int nt[]=new int[6];
int q[]=new int[6];
for(i=0;i<n;i++)
{ System.out.println("Transaction "+(i+1)+" :");
  for(j=0;j<6;j++)
  {  //System.out.println(itemlist[j]);
     System.out.println("Is Item "+itemlist[j]+" present in this transaction(1/0)? :");
     item[i][j]=Integer.parseInt(b.readLine()); 
  }
}
 for(j=0;j<6;j++) 
  { for(i=0;i<n;i++)
    {if(item[i][j]==1)
      nt[j]=nt[j]+1;
    }
    System.out.println("Number of Item "+itemlist[j]+" :"+nt[j]);
  }

for(j=0;j<6;j++)
{ if(((nt[j]/(float)n)*100)>=50)
    q[j]=1;
  else
    q[j]=0;

  if(q[j]==1)
   {t1++;
    System.out.println("Item "+itemlist[j]+" is selected "); 
   
   }
}
 for(j=0;j<6;j++) 
  { for(i=0;i<n;i++)
   {
     
     if(q[j]==0)
       { 
        item[i][j]=0;
       }
   }
   }

int nt1[][]=new int[6][6];
 for(j=0;j<6;j++) 
    {  for(m=j+1;m<6;m++) 
       { for(i=0;i<n;i++)
         { if(item[i][j]==1 &&item[i][m]==1)
           { nt1[j][m]=nt1[j][m]+1;
           }
         }
    if(nt1[j][m]!=0)
         System.out.println("Number of Items of  "+itemlist[j]+"& "+itemlist[m]+" :"+nt1[j][m]);
    }
  
   }
for(j=0;j<6;j++)
{ for(m=j+1;m<6;m++) 
  {
  if(((nt1[j][m]/(float)n)*100)>=50)
    q[j]=1;
  else
    q[j]=0;

  if(q[j]==1)
   {
    System.out.println("Item "+itemlist[j]+"& "+itemlist[m]+" is selected "); 
   
   }
}
}
} 
}

/*OUTPUT

Z:\>javac apriori.java

Z:\>java apriori
Enter the number of transaction :
4
items :1--Milk 2--Bread 3--Coffee 4--Juice  5--Cookies  6--Jam
Transaction 1 :
Is Item MILK present in this transaction(1/0)? :
1
Is Item BREAD present in this transaction(1/0)? :
1
Is Item COFFEE present in this transaction(1/0)? :
0
Is Item JUICE present in this transaction(1/0)? :
1
Is Item COOKIES present in this transaction(1/0)? :
1
Is Item JAM present in this transaction(1/0)? :
0
Transaction 2 :
Is Item MILK present in this transaction(1/0)? :
1
Is Item BREAD present in this transaction(1/0)? :
0
Is Item COFFEE present in this transaction(1/0)? :
0
Is Item JUICE present in this transaction(1/0)? :
1
Is Item COOKIES present in this transaction(1/0)? :
0
Is Item JAM present in this transaction(1/0)? :
0
Transaction 3 :
Is Item MILK present in this transaction(1/0)? :
1
Is Item BREAD present in this transaction(1/0)? :
0
Is Item COFFEE present in this transaction(1/0)? :
0
Is Item JUICE present in this transaction(1/0)? :
0
Is Item COOKIES present in this transaction(1/0)? :
0
Is Item JAM present in this transaction(1/0)? :
1
Transaction 4 :
Is Item MILK present in this transaction(1/0)? :
0
Is Item BREAD present in this transaction(1/0)? :
1
Is Item COFFEE present in this transaction(1/0)? :
1
Is Item JUICE present in this transaction(1/0)? :
0
Is Item COOKIES present in this transaction(1/0)? :
1
Is Item JAM present in this transaction(1/0)? :
0
Number of Item MILK :3
Number of Item BREAD :2
Number of Item COFFEE :1
Number of Item JUICE :2
Number of Item COOKIES :2
Number of Item JAM :1
Item MILK is selected
Item BREAD is selected
Item JUICE is selected
Item COOKIES is selected
Number of Items of  MILK& BREAD :1
Number of Items of  MILK& COFFEE :0
Number of Items of  MILK& JUICE :2
Number of Items of  MILK& COOKIES :1
Number of Items of  MILK& JAM :0
Number of Items of  BREAD& COFFEE :0
Number of Items of  BREAD& JUICE :1
Number of Items of  BREAD& COOKIES :2
Number of Items of  BREAD& JAM :0
Number of Items of  COFFEE& JUICE :0
Number of Items of  COFFEE& COOKIES :0
Number of Items of  COFFEE& JAM :0
Number of Items of  JUICE& COOKIES :1
Number of Items of  JUICE& JAM :0
Number of Items of  COOKIES& JAM :0
Item MILK& JUICE is selected
Item BREAD& COOKIES is selected

*/

//Create two file Config.txt & transa.txt put data as follows

Config.txt
81000040

transa.txt
1 2 3 4 5
6 7 8 9 10

swap()
{
echo "Enter num1"
read num1
echo "Enter num2"
read num2

temp=$num1
num1=$num2
num2=$temp
echo "swapping numbers"
echo "num1 is $num1"
echo "num2 is $num2"
}
swap


/*
@linux-ogus:~/Desktop> chmod 755 ex2
@linux-ogus:~/Desktop> ./ex2
Enter num1
20
Enter num2
30
swapping numbers
num1 is 30
num2 is 20
*/

echo "Enter the Number"
read n1
rev=0
a=0
while [ $n1 -gt "0" ]
do
mod=`expr $n1 % 10`
rev=`expr $rev \* 10 + $mod`
n1=`expr $n1 / 10`

done
echo "$rev"

/* OUTPUT
linux-ogus:~> ./reverse_no
Enter the Number
654
456
*/

kk=y
while [ "$kk" != "y" ]
do
echo "Enter value of x"
read x
echo "Enter value of y"
read y
echo "Enter your choice"
echo "1 Add"
echo "2 Sub"
echo "3 Multi"
echo "4 div"
echo "5 i dont know"
read case
case $case in
1) expr $x + $y ;;
2) expr $x - $y ;;
3) expr $x * $y ;;
4) expr $x % $y ;;
5) exit
esac
echo "enter option"
read option
echo "do you want to continue"
read kk
done


/*Output
linux-mj2y:~> sh arith.sh
Enter value of x
3
Enter value of y
5
Enter your choice
1 Add
2 Sub
3 Multi
4 div
5 i dont know
1
8
enter option
y
do you want to continue
n
Enter value of x
3
Enter value of y
3
Enter your choice
1 Add
2 Sub
3 Multi
4 div
5 i dont know
4
0
enter option
kk
do you want to continue
y

*/

echo "Enter first num"
read n1
echo "Enter the second num"
read n2
echo "Enter the third num"
read n3
if [ $n1 -gt $n2 ]
then
val=$n1
else
val=$n2
fi
if [ $val -gt $n3 ]
then
echo "$val is the greatest num"
else
echo "$n3 is the greatest num"
fi

/* OUTPUT

shell:~> ./greater_no
Enter first num
2
Enter the second num
4
Enter the third num
54
54 is the greatest num
*/

class a extends Thread
{
public void run()
{
for(inti=0;i<=5;i++)
{
System.out.println(this.getName()+" :"+i);
}
System.out.println("The End of child Thread:"+this.getName());
}
}
class b extends Thread
{
public void run()
{
for(int i=0;i<=5;i++)
{
System.out.println(this.getName()+" :"+i);
}
System.out.println("The End of child Thread:"+this.getName());
}
}

class c extends Thread
{
public void run()
{
for(int i=0;i<=5;i++)
{
System.out.println(this.getName()+" :"+i);
}
System.out.println("The End of child Thread:"+this.getName());
}
}

class test
{
public static void main(String args[])

{
a thra=new a();
b thrb=new b();
c thrc=new c();

thra.setName("Thread_a");
thrb.setName("Thread_b");
thrc.setName("Thread_c");

thra.setPriority(Thread.MAX_PRIORITY);
thrb.setPriority(Thread.MIN_PRIORITY);
thrc.setPriority(Thread.NORM_PRIORITY);

System.out.println("start Thread b...");
thrb.start();

System.out.println("start Thread c...");
thrc.start();

System.out.println("start Thread a...");
thra.start();

try
{

thra.join();
thrb.join();
thrc.join();
}
catch(InterruptedException e)
{}

}
}

import java.io.*;
class pagereplacement
{
public static void main(String a[])throws IOException
{
BufferedReader b=new BufferedReader(new InputStreamReader(System.in));
int mf[]=new int[3];
String wish;
int i,j,k,msize=3,fault;
int x[];

System.out.println("Enter the total no. of pages ");
int n=Integer.parseInt(b.readLine());
x=new int[n];
System.out.println("Enter the page nos.");
for(i=0;i3)
index=0;
if(j>3)
{
for(i=j;i<(j+3)&&j<(x.length-3);i++) for(k=0;k=3)
index=0;
if(flag)
{if(mf[index]!=0)
{fault++;}
mf[index]=temp;
index++;
}
System.out.println("Main frame is......");
for(i=0;i>"+mf[i]);
}
System.out.println("Number of hits is"+hit);
System.out.println("Number of faults is"+fault);
break;
default :System.out.println("Wrong Choice!!!!");
}
System.out.println("Do you want to continue(y/n):");
wish=b.readLine();
}
while(wish.equalsIgnoreCase("y"));
}
}

class dinningPphilosopher
{ public static void main(String a[])
{
int Semaphore=0,i,j=1;
String philo[]={"Gandhi","Socrates","Tagore","Einstein","Newton"};
int fork[]=new int[5];
for(i=0;i<5 br="" i=""> {
if(Semaphore==0)
{ if(i%2==0)
{
System.out.println("*****************************************");
System.out.println("Batch "+j+" has started");
}
System.out.println(philo[i]+" is dinning currently");
if(i%2!=0&&i!=0)
{
Semaphore=1;
}
}
if(Semaphore==1)
{
System.out.println("Sorry you will have to wait till batch "+j+" finishes dinning");
System.out.println("Batch "+j+" has finished dining");
Semaphore=0;
j+=1;
}
}
System.out.println("All the philosophers have finished dinning");
}
}

import java.io.*;
class banker
{
public static void main(String args[])throws IOException
{
BufferedReader b=new BufferedReader(new InputStreamReader(System.in));
int m,n,i,j,count=0;
System.out.println("Enter the number of process maximum(4)...");
m=Integer.parseInt(b.readLine());
System.out.println("Enter the number of Resources maximum(3)...");
n=Integer.parseInt(b.readLine());
int claim[][]=new int[m][n];
int allocation[][]=new int[m][n];
int need[][]=new int[m][n];
int resource[]=new int[n];
int available[]=new int[n];

System.out.println("Enter the resource matrix");
for(j=0;j resource[j]=Integer.parseInt(b.readLine());

System.out.println("Enter the available matrix");
for(j=0;j available[j]=Integer.parseInt(b.readLine());

for(i=0;i for(j=0;j { System.out.println("Enter the claim of process "+i+" for resource "+j);
claim[i][j]=Integer.parseInt(b.readLine());
}

for(i=0;i for(j=0;j { System.out.println("Enter the allocation of process "+i+" for resource "+j);
allocation[i][j]=Integer.parseInt(b.readLine());
}

for(i=0;i for(j=0;j { need[i][j]=claim[i][j]-allocation[i][j]; }

do
{
for(i=0;i {
if(need[i][0]==0&&need[i][1]==0&&need[i][2]==0)
continue;

if(need[i][0]<=available[0]&&need[i][1]<=available[1]&&need[i][2]<=available[2])
{ count++;
need[i][0]=need[i][1]=need[i][2]=0;
available[0]=available[0]+allocation[i][0];
available[1]=available[1]+allocation[i][1];
available[2]=available[2]+allocation[i][2];

System.out.println("..Need matrix...");
for(i=0;i { for(j=0;j {System.out.print(need[i][j]+" ");}
System.out.println();
}
System.out.println("..available matrix...");

for(j=0;j System.out.println(available[j]+" ");
}

}
}while(count<4 br="">

}
}

import java.io.*;

class sjf
{
public static void main (String args[])throws IOException
{
int i,j,temp;
BufferedReader b= new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter no. of processes");
int p=Integer.parseInt(b.readLine());
int burst[]=new int[p];
System.out.println("Enter the burst time for each process");
for(i=0;i

burst[j+1])
{
temp=burst[j+1];
burst[j+1]=burst[j];
burst[j]=temp;
}
}
}
int arv[] = new int[p];
System.out.println("Enter arrival time for each process");
for(i=0;i

arv[i]=Integer.parseInt(b.readLine());
int wait[] = new int[p];
System.out.println("Wait time for each process :");
System.out.println("Process 0 "+wait[0]+" units");
for(i=1;i

{
wait[i]=arv[i-1]+burst[i-1]+wait[i-1]-arv[i];
System.out.println("Process "+i+" "+wait[i]+" units");
}
}
}

import java.io.*;
import java.util.*;
class schpol
{ public static void main(String []arg)throws IOException
{
BufferedReader b=new BufferedReader(new InputStreamReader(System.in));
int i,j,t=0,tun=0,ch,q;
String s;
int []ind=new int[10];
int []arr=new int[10];
int []burst=new int[10];
int []bur=new int[10];
System.out.println("enter no of processes :");
int n=Integer.parseInt(b.readLine());
for(i=0;i0)
{ t= (tun)-arr[i] ;
if(t>0)
{ System.out.println(" process p"+i+" waiting for "+t ); }
else
{ System.out.println("idle for "+Math.abs(t) +" time"); }

tun=tun+burst[i];
}
else
{ tun=burst[i]; }

for(j=0;j for(j=0;j { System.out.println("----");
}
System.out.println(" process p"+ind[i]+" completed");
}
break;

case 3:
tun=0;
System.out.println("enter quatum no:");
q=Integer.parseInt(b.readLine());
i=0;
tun=burst[i];
while(tun!=0)
{
for(i=0;i {
for(j=0;j { if(burst[i]!=0)
{
System.out.println("process p"+i+" executing .......");
burst[i]=burst[i]-1;
t++;
if(burst[i]==0)
{
System.out.println("process p"+i+" completed ");
break;
}
}
}
if(t { System.out.println("processor idle "); }
}
tun=0;
for(i=0;i { tun=tun+burst[i]; }
}
break;
}
System.out.println("do u want to continue(y/n) ");
s=b.readLine();
}
while(s.equals("y"));

}
}