Solution: Let us suppose a 2 D Array of type interger defined by the user as given below:
int array[5] [10] ; --------- 1)
Complier will treat an array internally as given below:
int *(*(p+5)+10);
However one cant declare an array as the compiler treates it internally... Any1 can have try on it and compiler will give error . e.g
int *(*(p+5)+10) will give an error while declaring array.
However You can use such expressions in sc panf and printf statements to enter and access elements of array.
Example:
#include<stdio.h>
#include<conio.h>
int func(int *,int);
int arr[]={1,2,3,4,5};
int main()
{
func(arr,5);
getch();
return 0;
}
int func(int *a,int z)
{
int i;
for(i=0;i<z;i++)
{
printf("%d\n",*(arr+i)); // making use of the concept i hav discussed above
}
}
Tuesday, December 21, 2010
Thursday, December 16, 2010
Newton Forward Interploation (Numerical Methods)
// Newton Foward interpolation
#include<stdio.h>
#include<conio.h>
int main()
{
int i,j,num;
float data[10][10],u,abc,x,ch1,ch=1;
printf("\n *** Welcome to the calculation in Newton Forward Interpolation ***");
printf("\n\n Enter the number of values do u wanna Enter:\n Enter Your Choice:");
scanf("%d",&num);
for(i=0;i<num;i++)
{
printf("\n Enter data value x(%d) is:",i+1);
scanf("%f",&data[i][0]);
}
for(i=0;i<num;i++)
{
printf("\n Enter function value y(%d)is:",i+1);
scanf("%f",&data[i][1]);
}
for(j=2;j<num+1;j++)
{
for(i=0;i<num-1;i++)
{
data[i][j]=((data[i+1][j-1])-(data[i][j-1]));
}
}
printf("\n The Forward difference Table is:");
printf("\n x f(x)");
for(i=0;i<num;i++)
{
printf(" %dDD ",i);
// if(i==4)
// break;
}
for(i=0;i<num;i++)
{
printf("\n");
for(j=0;j<num+1-i;j++)
{
printf(" %f",data[i][j]);
}
}
printf("\n\n Enter the value of x:\n Enter Your Choice:");
scanf("%f",&x);
abc=((data[1][0])-(data[0][0]));
u=(x-data[0][0])/abc;
ch1=data[0][1];
for(i=1;i<num;i++)
{
ch=ch*((u-(i-1))/i);
ch1=ch1+(data[0][i+1])*(ch);
}
printf("\n\n\t Hence The value at the function at x=%f is =%f",x,ch1);
printf("\n\n\t\t\t *** Bye Bye ***");
getch();
return 0;
}
Garry
#include<stdio.h>
#include<conio.h>
int main()
{
int i,j,num;
float data[10][10],u,abc,x,ch1,ch=1;
printf("\n *** Welcome to the calculation in Newton Forward Interpolation ***");
printf("\n\n Enter the number of values do u wanna Enter:\n Enter Your Choice:");
scanf("%d",&num);
for(i=0;i<num;i++)
{
printf("\n Enter data value x(%d) is:",i+1);
scanf("%f",&data[i][0]);
}
for(i=0;i<num;i++)
{
printf("\n Enter function value y(%d)is:",i+1);
scanf("%f",&data[i][1]);
}
for(j=2;j<num+1;j++)
{
for(i=0;i<num-1;i++)
{
data[i][j]=((data[i+1][j-1])-(data[i][j-1]));
}
}
printf("\n The Forward difference Table is:");
printf("\n x f(x)");
for(i=0;i<num;i++)
{
printf(" %dDD ",i);
// if(i==4)
// break;
}
for(i=0;i<num;i++)
{
printf("\n");
for(j=0;j<num+1-i;j++)
{
printf(" %f",data[i][j]);
}
}
printf("\n\n Enter the value of x:\n Enter Your Choice:");
scanf("%f",&x);
abc=((data[1][0])-(data[0][0]));
u=(x-data[0][0])/abc;
ch1=data[0][1];
for(i=1;i<num;i++)
{
ch=ch*((u-(i-1))/i);
ch1=ch1+(data[0][i+1])*(ch);
}
printf("\n\n\t Hence The value at the function at x=%f is =%f",x,ch1);
printf("\n\n\t\t\t *** Bye Bye ***");
getch();
return 0;
}
Garry
NEWTON BACKWARD INTERPOLATION( NUMERICAL METHODS)
// Newton Backward Interpolation
#include<stdio.h>
#include<conio.h>
int main()
{
int i,j,num;
float data[10][10],u,abc,x,ch1=0.0,ch=1;
//char str[80];
printf("\n *** Welcome to the calculation in Newton Backward Interpolation***");
printf("\n\n Enter the number of values do u wanna Enter:\n Enter Your Choice:");
scanf("%d",&num);
printf("\n\n Enter the set of data values:");
for(i=0;i<num;i++)
{
printf("\n Enter data value x(%d) is:",i+1);
scanf("%f",&data[i][0]);
}
printf("\n\n\t *** Enter The Set Of Function Values ***");
for(i=0;i<num;i++)
{
printf("\n Enter function value y(%d)is:",i+1);
scanf("%f",&data[i][1]);
}
for(j=2;j<num+1;j++)
{
for(i=0;i<num-1;i++)
{
data[i][j]=((data[i+1][j-1])-(data[i][j-1]));
}
}
printf("\n The Newton Backward difference Table is:");
printf("\n x f(x) ");
for(i=0;i<num;i++)
{
printf(" %dDD ",i);
// if(i==4)
// break;
}
for(i=0;i<num;i++)
{
printf("\n");
for(j=0;j<num+1-i;j++)
{
printf(" %f",data[i][j]);
}
}
printf("\n\n Enter the value of x:\n Enter Your Choice:");
scanf("%f",&x);
abc=((data[num-1][0])-(data[num-2][0]));
u=((x)-(data[num-1][0]))/abc;
ch1=data[num-1][1];
for(i=1;i<num;i++)
{
ch=ch*((u+(i-1))/(i));
//ch1=ch1+(data[0][i+1])*(ch);
ch1=ch1+((data[num-i-1][i+1])*(ch));
}
printf("\n\n\t Hence The value at the function at x=%f is =%f",x,ch1);
printf("\n\n\t\t\t *** Bye Bye ***");
getch();
return 0;
}
Gurpreet Singh
#include<stdio.h>
#include<conio.h>
int main()
{
int i,j,num;
float data[10][10],u,abc,x,ch1=0.0,ch=1;
//char str[80];
printf("\n *** Welcome to the calculation in Newton Backward Interpolation***");
printf("\n\n Enter the number of values do u wanna Enter:\n Enter Your Choice:");
scanf("%d",&num);
printf("\n\n Enter the set of data values:");
for(i=0;i<num;i++)
{
printf("\n Enter data value x(%d) is:",i+1);
scanf("%f",&data[i][0]);
}
printf("\n\n\t *** Enter The Set Of Function Values ***");
for(i=0;i<num;i++)
{
printf("\n Enter function value y(%d)is:",i+1);
scanf("%f",&data[i][1]);
}
for(j=2;j<num+1;j++)
{
for(i=0;i<num-1;i++)
{
data[i][j]=((data[i+1][j-1])-(data[i][j-1]));
}
}
printf("\n The Newton Backward difference Table is:");
printf("\n x f(x) ");
for(i=0;i<num;i++)
{
printf(" %dDD ",i);
// if(i==4)
// break;
}
for(i=0;i<num;i++)
{
printf("\n");
for(j=0;j<num+1-i;j++)
{
printf(" %f",data[i][j]);
}
}
printf("\n\n Enter the value of x:\n Enter Your Choice:");
scanf("%f",&x);
abc=((data[num-1][0])-(data[num-2][0]));
u=((x)-(data[num-1][0]))/abc;
ch1=data[num-1][1];
for(i=1;i<num;i++)
{
ch=ch*((u+(i-1))/(i));
//ch1=ch1+(data[0][i+1])*(ch);
ch1=ch1+((data[num-i-1][i+1])*(ch));
}
printf("\n\n\t Hence The value at the function at x=%f is =%f",x,ch1);
printf("\n\n\t\t\t *** Bye Bye ***");
getch();
return 0;
}
Gurpreet Singh
Child window on a parent window client area with caption chaging facility
#include<windows.h>
#include "resource.h"
#define ID_ABC 21
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
LRESULT CALLBACK ChildProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpszCmdLine,int nCmdShow)
{
HWND hwnd;
MSG msg;
WNDCLASS w;
if(!hPrevInstance)
{
w.cbClsExtra=0;
w.cbWndExtra=0;
w.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
w.hIcon=LoadIcon(NULL,IDC_ARROW);
w.hCursor=LoadCursor(NULL,IDI_APPLICATION);
w.hInstance=hInstance;
w.lpfnWndProc=WndProc;
w.lpszClassName=TEXT("MYCLASS");
w.lpszMenuName=MAKEINTRESOURCE(IDR_MENU1);
w.style=CS_HREDRAW|CS_VREDRAW;
if(!RegisterClass(&w))
{
return 0;
}
}
w.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
w.lpfnWndProc=ChildProc;
w.lpszClassName=TEXT("ChildClass");
w.lpszMenuName=NULL;
if(!RegisterClass(&w))
{
return 0;
}
hwnd=CreateWindow(TEXT("MyClass"),TEXT("WINDOW"),WS_OVERLAPPEDWINDOW,10,20,500,500,NULL,NULL,hInstance,NULL);
ShowWindow(hwnd,nCmdShow);
UpdateWindow(hwnd);
while(GetMessage(&msg,NULL,NULL,NULL))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd,UINT message, WPARAM wParam,LPARAM lParam)
{
static BOOL hcreate=TRUE;
static HWND hchild;
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch(message)
{
case WM_CREATE:
return 0;
case WM_COMMAND:
switch(wParam)
{
case ID_CREATE:
if(hcreate==TRUE)
{
hcreate=FALSE;
hchild=CreateWindow(TEXT("ChildClass"),TEXT("CHILD"),WS_CHILD|WS_BORDER|WS_THICKFRAME|WS_SIZEBOX|WS_VISIBLE|WS_CAPTION,20,50,100,100,hwnd,NULL,(HINSTANCE)GetWindowLong(hwnd,GWL_HINSTANCE),NULL);
}
break;
case ID_SEND:
SendMessage(hchild,WM_USER,0,0L);
break;
}
break;
case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
TextOut(hdc,10,20,TEXT("Hello Sir Jiiiiiiii"),2);
EndPaint(hwnd,&ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
}
return DefWindowProc(hwnd,message,wParam,lParam);
}
LRESULT CALLBACK ChildProc(HWND h,UINT m,WPARAM w,LPARAM l)
{
static BOOL p=FALSE;
//static HANDLE hpr;
//static HWND hpush;
//HINSTANCE his;
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch(m)
{
if(!p)
{
p=TRUE;
case WM_CREATE:
//hpr=GetParent(h);
CreateWindow(TEXT("BUTTON"),TEXT("PUSH IT"),WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON|WS_BORDER,10,50,70,20,h,(HMENU) ID_ABC,(HINSTANCE)GetWindowLong(h,GWL_HINSTANCE),NULL);
}
break;
case WM_USER:
SetWindowText(h,TEXT("THIS IS A CHILD WINDOW DUDE"));
break;
case WM_COMMAND:
switch(w)
{
case ID_ABC:
MessageBox(h,TEXT("i m tired "),TEXT("WINDOW"),MB_OK);
break;
}
break;
case WM_PAINT:
hdc=BeginPaint(h,&ps);
GetClientRect(h,&rect);
TextOut(hdc,20,30,TEXT("Hello Sir Jiiiiiiii u re in child window now"),29);
EndPaint(h,&ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
}
return DefWindowProc(h,m,w,l);
}
Gurpreet Singh
#include "resource.h"
#define ID_ABC 21
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
LRESULT CALLBACK ChildProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpszCmdLine,int nCmdShow)
{
HWND hwnd;
MSG msg;
WNDCLASS w;
if(!hPrevInstance)
{
w.cbClsExtra=0;
w.cbWndExtra=0;
w.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
w.hIcon=LoadIcon(NULL,IDC_ARROW);
w.hCursor=LoadCursor(NULL,IDI_APPLICATION);
w.hInstance=hInstance;
w.lpfnWndProc=WndProc;
w.lpszClassName=TEXT("MYCLASS");
w.lpszMenuName=MAKEINTRESOURCE(IDR_MENU1);
w.style=CS_HREDRAW|CS_VREDRAW;
if(!RegisterClass(&w))
{
return 0;
}
}
w.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
w.lpfnWndProc=ChildProc;
w.lpszClassName=TEXT("ChildClass");
w.lpszMenuName=NULL;
if(!RegisterClass(&w))
{
return 0;
}
hwnd=CreateWindow(TEXT("MyClass"),TEXT("WINDOW"),WS_OVERLAPPEDWINDOW,10,20,500,500,NULL,NULL,hInstance,NULL);
ShowWindow(hwnd,nCmdShow);
UpdateWindow(hwnd);
while(GetMessage(&msg,NULL,NULL,NULL))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd,UINT message, WPARAM wParam,LPARAM lParam)
{
static BOOL hcreate=TRUE;
static HWND hchild;
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch(message)
{
case WM_CREATE:
return 0;
case WM_COMMAND:
switch(wParam)
{
case ID_CREATE:
if(hcreate==TRUE)
{
hcreate=FALSE;
hchild=CreateWindow(TEXT("ChildClass"),TEXT("CHILD"),WS_CHILD|WS_BORDER|WS_THICKFRAME|WS_SIZEBOX|WS_VISIBLE|WS_CAPTION,20,50,100,100,hwnd,NULL,(HINSTANCE)GetWindowLong(hwnd,GWL_HINSTANCE),NULL);
}
break;
case ID_SEND:
SendMessage(hchild,WM_USER,0,0L);
break;
}
break;
case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
TextOut(hdc,10,20,TEXT("Hello Sir Jiiiiiiii"),2);
EndPaint(hwnd,&ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
}
return DefWindowProc(hwnd,message,wParam,lParam);
}
LRESULT CALLBACK ChildProc(HWND h,UINT m,WPARAM w,LPARAM l)
{
static BOOL p=FALSE;
//static HANDLE hpr;
//static HWND hpush;
//HINSTANCE his;
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch(m)
{
if(!p)
{
p=TRUE;
case WM_CREATE:
//hpr=GetParent(h);
CreateWindow(TEXT("BUTTON"),TEXT("PUSH IT"),WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON|WS_BORDER,10,50,70,20,h,(HMENU) ID_ABC,(HINSTANCE)GetWindowLong(h,GWL_HINSTANCE),NULL);
}
break;
case WM_USER:
SetWindowText(h,TEXT("THIS IS A CHILD WINDOW DUDE"));
break;
case WM_COMMAND:
switch(w)
{
case ID_ABC:
MessageBox(h,TEXT("i m tired "),TEXT("WINDOW"),MB_OK);
break;
}
break;
case WM_PAINT:
hdc=BeginPaint(h,&ps);
GetClientRect(h,&rect);
TextOut(hdc,20,30,TEXT("Hello Sir Jiiiiiiii u re in child window now"),29);
EndPaint(h,&ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
}
return DefWindowProc(h,m,w,l);
}
Gurpreet Singh
FIRST COME FIRST SERVE ( CPU Schdeuling)
#include<stdio.h>
#include<conio.h>
int temp,temp1,burst[10],arrival[10],waiting[10];
int i,j,num;
float Awt,Tat;
char pname[20][20];
void inputdata();
void fcfs();
void calculatedata();
void inputdata()
{
printf("\n Enter the Number of processes:\n Enter Your Choice:");
scanf("%d",&num);
printf("\n Enter Info Of Each Process:");
for(i=1;i<=num;i++)
{
fflush(stdin);
printf("\n Enter the name of process:");
scanf("%[^\n]s",pname[i]);
printf("\n Enter the Burst time for process %s=",pname[i]);
scanf("%d",&burst[i]);
printf("\n Enter the Arrival time for process %s=",pname[i]);
scanf("%d",&arrival[i]);
}
}
void calculatedata()
{
waiting[1]=0;
int Ttt=0; Att=0;
for(i=2;i<=num;i++)
{
waiting[i]=(waiting[i-1]+burst[i-1]);
}
for(i=1;i<=num;i++)
{
Ttt=Ttt+(waiting[i]-arrival[i]);
Att=Att+((waiting[i]+burst[i])-arrival[i]);
}
Awt=float(Att)/num;
Tat=float(Ttt)/num;
printf("\n\t\t Hence the average waiting time is=%3.2f",Awt);
printf("\n\t\t Hence the average turn arround time is=%3.2f",Tat);
}
void fcfs()
{
for(i=1;i<=num;i++)
{
for(j=i+1;j<=num;j++)
{
if(arrival[i]>arrival[j])
{
temp=arrival[i];
temp1=burst[i];
arrival[i]=arrival[j];
burst[i]=burst[j];
arrival[j]=temp;
burst[j]=temp1;
}
}
}
calculatedata();
}
int main()
{
printf("\n\t\t *** Welcome to first come first serve algorithm ***");
printf("\n\n Enter Data:");
inputdata();
fcfs();
getch();
return 0;
}
Gurpreet Singh
#include<conio.h>
int temp,temp1,burst[10],arrival[10],waiting[10];
int i,j,num;
float Awt,Tat;
char pname[20][20];
void inputdata();
void fcfs();
void calculatedata();
void inputdata()
{
printf("\n Enter the Number of processes:\n Enter Your Choice:");
scanf("%d",&num);
printf("\n Enter Info Of Each Process:");
for(i=1;i<=num;i++)
{
fflush(stdin);
printf("\n Enter the name of process:");
scanf("%[^\n]s",pname[i]);
printf("\n Enter the Burst time for process %s=",pname[i]);
scanf("%d",&burst[i]);
printf("\n Enter the Arrival time for process %s=",pname[i]);
scanf("%d",&arrival[i]);
}
}
void calculatedata()
{
waiting[1]=0;
int Ttt=0; Att=0;
for(i=2;i<=num;i++)
{
waiting[i]=(waiting[i-1]+burst[i-1]);
}
for(i=1;i<=num;i++)
{
Ttt=Ttt+(waiting[i]-arrival[i]);
Att=Att+((waiting[i]+burst[i])-arrival[i]);
}
Awt=float(Att)/num;
Tat=float(Ttt)/num;
printf("\n\t\t Hence the average waiting time is=%3.2f",Awt);
printf("\n\t\t Hence the average turn arround time is=%3.2f",Tat);
}
void fcfs()
{
for(i=1;i<=num;i++)
{
for(j=i+1;j<=num;j++)
{
if(arrival[i]>arrival[j])
{
temp=arrival[i];
temp1=burst[i];
arrival[i]=arrival[j];
burst[i]=burst[j];
arrival[j]=temp;
burst[j]=temp1;
}
}
}
calculatedata();
}
int main()
{
printf("\n\t\t *** Welcome to first come first serve algorithm ***");
printf("\n\n Enter Data:");
inputdata();
fcfs();
getch();
return 0;
}
Gurpreet Singh
FIFO(Memory Management)
#include<stdio.h>
#include<conio.h>
int main()
{
int i,j,k,l,page[10],buf,buff[10],pagefault,num,temp,flag=1;
printf("\n Enter the number of paging sequence do u wanna enter:");
scanf("%d",&num);
printf("\n\n Enter the paging sequence:");
for(i=0;i<num;i++)
{
printf("\n page %d.",i+1);
scanf("%d",&page[i]);
}
printf("\n\n Enter the buffer size:");
scanf("%d",&buf);
for(j=0;j<buf;j++)
{
buff[j]=0;
}
pagefault=0;
k=0;
flag=1;
for(i=0;i<num;i++)
{
flag=1;
for(j=0;j<buf;j++)
{
if(buff[j]==page[i])
{
flag=0;
break;
}
}
j=0;
if(flag==0)
{
continue;
}
else
{
if(k <buf)
{
buff[k]=page[i];
k++;
pagefault++;
printf("\n Now Pages Are:");
for(l=0;l<buf;l++)
{
if(buff[l]!=0)
{
printf(" %d",buff[l]);
}
}
continue;
}
for(j=0;j<buf-1;j++)
{
temp=buff[j+1];
buff[j+1]=buff[j];
buff[j]=temp;
}
buff[buf-1]=page[i];
pagefault++;
printf("\n Now Pages Are:");
for(l=0;l<buf;l++)
{
if(buff[l]!=0)
{
printf(" %d",buff[l]);
}
}
}
}
printf("\n\n\t Hence the page faults are=%d",pagefault);
getch();
return 0;
}
Gurpreet Singh
#include<conio.h>
int main()
{
int i,j,k,l,page[10],buf,buff[10],pagefault,num,temp,flag=1;
printf("\n Enter the number of paging sequence do u wanna enter:");
scanf("%d",&num);
printf("\n\n Enter the paging sequence:");
for(i=0;i<num;i++)
{
printf("\n page %d.",i+1);
scanf("%d",&page[i]);
}
printf("\n\n Enter the buffer size:");
scanf("%d",&buf);
for(j=0;j<buf;j++)
{
buff[j]=0;
}
pagefault=0;
k=0;
flag=1;
for(i=0;i<num;i++)
{
flag=1;
for(j=0;j<buf;j++)
{
if(buff[j]==page[i])
{
flag=0;
break;
}
}
j=0;
if(flag==0)
{
continue;
}
else
{
if(k <buf)
{
buff[k]=page[i];
k++;
pagefault++;
printf("\n Now Pages Are:");
for(l=0;l<buf;l++)
{
if(buff[l]!=0)
{
printf(" %d",buff[l]);
}
}
continue;
}
for(j=0;j<buf-1;j++)
{
temp=buff[j+1];
buff[j+1]=buff[j];
buff[j]=temp;
}
buff[buf-1]=page[i];
pagefault++;
printf("\n Now Pages Are:");
for(l=0;l<buf;l++)
{
if(buff[l]!=0)
{
printf(" %d",buff[l]);
}
}
}
}
printf("\n\n\t Hence the page faults are=%d",pagefault);
getch();
return 0;
}
Gurpreet Singh
Round Robin (OPERATING SYSTEM)
#include<stdio.h>
#include<conio.h>
int main()
{
int i ,j,waiting[3],last[3],lefttime[3],burst[3];
float awt=0.0;
int gap=0;
int sum=0;
printf("\n\t Enter the process information");
for(i=0;i<3;i++)
{
fflush(stdin);
printf("\n\n\t Process %d",i+1);
printf("\n\n Enter Burst Time:");
scanf("%d",&burst[i]);
waiting[i]=0;
lefttime[i]=0;
last[i]=0;
}
printf("\n\n Enter the interval time:");
scanf("%d",&gap);
printf("\n\n gap=%d", gap);
for(i=0;i<3;i++)
{
sum=sum+burst[i];
}
printf("\n\n sum=%d", sum);
for(i=0;i<3;i++)
{
lefttime[i]=burst[i];
}
j=0;
i=0;
while(1)
{
if(lefttime[j]>0)
{
if(lefttime[j]<=gap)
{
waiting[j]=waiting[j]+(i-last[j]);
i=i+lefttime[j];
last[j]=i+lefttime[j];
lefttime[j]=0;
}
else if(lefttime[j]>gap)
{
waiting[j]=waiting[j]+(i-last[j]);
i=i+gap;
last[j]=i;
lefttime[j]=lefttime[j]-gap;
}
}
if(i>=sum)
break;
if(j==2)
j=0;
else
j++;
}
for(i=0;i<3;i++)
{
printf("\n\nWaiting time for p%d = %d",i+1,waiting[i]);
awt=awt+waiting[i];
}
awt=awt/3.0;
printf("\n\n\t Hence the Average waiting time =%.3f",awt);
getch();
return 0;
}
Gurpreet Singh
#include<conio.h>
int main()
{
int i ,j,waiting[3],last[3],lefttime[3],burst[3];
float awt=0.0;
int gap=0;
int sum=0;
printf("\n\t Enter the process information");
for(i=0;i<3;i++)
{
fflush(stdin);
printf("\n\n\t Process %d",i+1);
printf("\n\n Enter Burst Time:");
scanf("%d",&burst[i]);
waiting[i]=0;
lefttime[i]=0;
last[i]=0;
}
printf("\n\n Enter the interval time:");
scanf("%d",&gap);
printf("\n\n gap=%d", gap);
for(i=0;i<3;i++)
{
sum=sum+burst[i];
}
printf("\n\n sum=%d", sum);
for(i=0;i<3;i++)
{
lefttime[i]=burst[i];
}
j=0;
i=0;
while(1)
{
if(lefttime[j]>0)
{
if(lefttime[j]<=gap)
{
waiting[j]=waiting[j]+(i-last[j]);
i=i+lefttime[j];
last[j]=i+lefttime[j];
lefttime[j]=0;
}
else if(lefttime[j]>gap)
{
waiting[j]=waiting[j]+(i-last[j]);
i=i+gap;
last[j]=i;
lefttime[j]=lefttime[j]-gap;
}
}
if(i>=sum)
break;
if(j==2)
j=0;
else
j++;
}
for(i=0;i<3;i++)
{
printf("\n\nWaiting time for p%d = %d",i+1,waiting[i]);
awt=awt+waiting[i];
}
awt=awt/3.0;
printf("\n\n\t Hence the Average waiting time =%.3f",awt);
getch();
return 0;
}
Gurpreet Singh
*** To geneare assembly of any c|c++ program using DEV-C ***
step1:
write a simple c|c++ program using dev-c compiler
step2:
save it in bin directory
step3:
open command prompt
step4:
type cd..
again type cd..
step5:
go to C: \Dev-Cpp\bin
step6:
write gcc|g++ -o -op <filename>
step7:
op><filename.exe>
step8:
write gcc|g++ -S <filename>
step9:
go to dev-c
step10:
open c|c++ program for which you are generating assembly language...
step11:
open <filename.s> this will be nothing but the assembly of the c|c++ program which u hav made ....
The assmbely tht it will generte will be of complier dependent... becoz different compliers will generate different assembly of the c|c++ program ... according to the issue whether they are 32 bit or 64 bit....
thts all about generating the assembly of any c|c++ program...
Gurpreet Singh
write a simple c|c++ program using dev-c compiler
step2:
save it in bin directory
step3:
open command prompt
step4:
type cd..
again type cd..
step5:
go to C: \Dev-Cpp\bin
step6:
write gcc|g++ -o -op <filename>
step7:
op><filename.exe>
step8:
write gcc|g++ -S <filename>
step9:
go to dev-c
step10:
open c|c++ program for which you are generating assembly language...
step11:
open <filename.s> this will be nothing but the assembly of the c|c++ program which u hav made ....
The assmbely tht it will generte will be of complier dependent... becoz different compliers will generate different assembly of the c|c++ program ... according to the issue whether they are 32 bit or 64 bit....
thts all about generating the assembly of any c|c++ program...
Gurpreet Singh
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