Tuesday, 19 September 2017
Thursday, 17 August 2017
Program to Find roots using Bisection Method
// Bisection Method
#include<stdio.h>
#include<math.h>
#define f(a,b,c,x) (a*x*x)+(b*x)+c
using namespace std;
int main()
{
int a,b,c,i,j;
float z,n,x,y,x1,x2,m;
printf("Enter the values of a,b and c\n");
scanf("%d%d%d",&a,&b,&c);
printf("Enter the range where you can find the roots\n");
scanf("%f%f",&x1,&x2);
//x=(a*x1*x1)+(b*x1)+c;
x=f(a,b,c,x1);
//y=(a*x2*x2)+(b*x2)+c;
y=f(a,b,c,x2);
n=20;
if(x*y>=0)
printf("No roots b/w them\n Exiting...");
else
{
while(n--)
{
m=(x1+x2)/2;
#include<stdio.h>
#include<math.h>
#define f(a,b,c,x) (a*x*x)+(b*x)+c
using namespace std;
int main()
{
int a,b,c,i,j;
float z,n,x,y,x1,x2,m;
printf("Enter the values of a,b and c\n");
scanf("%d%d%d",&a,&b,&c);
printf("Enter the range where you can find the roots\n");
scanf("%f%f",&x1,&x2);
//x=(a*x1*x1)+(b*x1)+c;
x=f(a,b,c,x1);
//y=(a*x2*x2)+(b*x2)+c;
y=f(a,b,c,x2);
n=20;
if(x*y>=0)
printf("No roots b/w them\n Exiting...");
else
{
while(n--)
{
m=(x1+x2)/2;
//z=(a*m*m)+(b*m)+c;
z=f(a,b,c,m);
//x=(a*x1*x1)+(b*x1)+c;
x=f(a,b,c,x1);
//y=(a*x2*x2)+(b*x2)+c;
y=f(a,b,c,x2);
if(z*x<0)
z=f(a,b,c,m);
//x=(a*x1*x1)+(b*x1)+c;
x=f(a,b,c,x1);
//y=(a*x2*x2)+(b*x2)+c;
y=f(a,b,c,x2);
if(z*x<0)
x2=m;
else if(z*y<0)
else if(z*y<0)
x1=m;
}
printf("\nRoot is %f",m);
}
return 0;
}
}
printf("\nRoot is %f",m);
}
return 0;
}
HAPPY CODING :)
Sunday, 13 August 2017
C program to calculate no. of significant digits and rounding off the number if it is a floating number
#include<stdio.h>
#include<string.h>
using namespace std;
int main()
{
char s[200];
scanf("%s",&s);
int l,i,j,n,d,c=0;
l=strlen(s);
for(i=l-1;i>=0;--i)
{
if(s[i]!='0')break;
}
j=i;
for(i=0;s[i]!='.';++i)
{
if(s[i]!='0')break;
--j;
}
for(i=0;i<l;++i)
if(s[i]=='.')
c=1;
if(!c)
{
++j;
printf("Number of significant digits are %d",j);
goto end;
}
printf("Number of significant digits are %d \n How many Significant Digits you want(Should not be less than decimal place)?\n",j);
scanf("%d",&n);
d=j-n;
for(i=l-1;i>=0;--i)
if(s[i]!='0')
break;
else
s[i]='-';
while(d--)
{
if(s[i]=='.')
{
s[i]='-';
continue;
}
else if(s[i]>'5')
{
s[i-1]=char(int(s[i-1])+1);
s[i]='-';
}
else if(s[i]<'5')
{
s[i]='-';
}
else if(s[i]=='5')
{
if((int(s[i-1]))%2)
{
s[i]='-';
}
else
{
s[i-1]=char(int(s[i-1])+1);
s[i]='-';
}
}
--i;
}
for(i=0;i<l;++i)
if(s[i]!='-')
printf("%c",s[i]);
end:
return 0;
}
Monday, 17 July 2017
Using Google to Gather Information
A hacker may also do a Google search or a Yahoo! People search to locate information
about employees or the organization itself.
The Google search engine can be used in creative ways to perform information gathering. The use of the Google search engine to retrieve information has been termed Google
hacking. Go to http://groups.google.com to search the Google newsgroups. The following commands can be used to have the Google search engine gather target information:
site Searches a specific website or domain. Supply the website you want to search after
the colon.
filetype Searches only within the text of a particular type of file. Supply the file type you
want to search after the colon. Don’t include a period before the file extension.
link Searches within hyperlinks for a search term and identifies linked pages.
cache Identifies the version of a web page. Supply the URL of the site after the colon.
intitle Searches for a term within the title of a document.
inurl Searches only within the URL (web address) of a document. The search term must
follow the colon.
For example, a hacker could use the following command to locate certain types of vulnerable web applications:
INURL:[“parameter=”] with FILETYPE:[ext] and INURL:[scriptname]
Or a hacker could use the search string intitle: “BorderManager information alert”
to look for Novell BorderManager proxy/firewall servers.
COPIED
Saturday, 15 July 2017
ANDROID DEVICE MANAGER
1. What would you do if you lose your android smartphone. If you lost it in the house you probably gonna ring it and see where it is but what would you do if it is silent?
2. What would you do if your android smartphone is stolen. Probably want to erase all the Stuffs in it and lock it so no one can use it. But HOW?
3. What if you forget your password and can't seem to remember even the backup pin. What in the hell would you do?
Well I am just here to tell you What you are going to do.
Ever thought why android smartphones asks for your email address when the first time you switch on it? No okay Most of you didn't but eh its okay you'll get to know today why.
Google offers you one of the great service known as Android Device Manager
So if you lose your smartphone just google android device manager sign in with the email account associated with your smartphone and check it out it gives you the following-
1. Your smartphone last location (last time it was connected to the internet)
2. Option to lock the phone (It deletes every lock and set its own which can't be cracked and also displays a message For e.g. you can Type Call 999999 )
3. Ring option which enables it ringing so you can find it if its nearby.(Even in Silent mode)
4. Erase. Now this must be your last option if you know your mobile got stolen and there is no way to recover it you should go with this option which will erase everything in your smartphone (and i mean EVERYTHING)
Hope you won't need it but just in case :p
Happy Cracking.
Friday, 14 July 2017
HOW TO RESET WINDOWS PASSWORD
FOLLOW THESE STEPS TO RESET PASSWORD
1. GET A BOOTABLE WINDOWS PENDRIVE OR DVD/CD
2. Boot using it and go to repair and explore the computer using it.
3. Goto C:/windows/system32
4. Search for SETHC rename it to anything for backup.
5. Search for CMD make a copy of cmd and rename the copy to SETHC.
6. You are all set here. REBOOT.
7. Now at the LOCKED SCREEN hit shift key 5 times.Sticky Keys will do the work and command prompt will be opened. MAGIC :p
8. Type in "net user" to see the current users. (Of course without quotes)
9. Now "net user USER *" to change the password of USER. (CHANGE USER with the account name you have )
10. Type whatever password you want to set.
You're all done.
HAPPY CRACKING.
#EDUCATIONAL_PURPOSE_ONLY