break-statement

When break is encountered inside any loop, control automatically passes to the first statement after the loop.
 A break statement is usually associated with an if.

Example program

//program to print first 6 numbers only
#include<stdio.h>
#include<conio.h>
int main()
{
int i;
for(i=0;i<=10;i++)
{

printf("%d\n",i);
if(i==6)
break;

}
getch();
return 0;

}

output:
0
1
2
3
4
5
6

Though we wrote the program to print 10 numbers, the numbers after 6 are not printed because of the break statement. Here the moment the system encounters the break statement, control automatically passes to the next statement after the loop.

//program to determine whether a number is prime or not
#include<stdio.h>
#include<conio.h>
int main()
{
int num, i;
printf("enter a number\n");
scanf("%d",&num);
i=2;
while(i<=num-1)
{
if(num%i==0)
{
printf("not a prime number");
break;
}
i++;
}
if(i==num)
printf("prime number");
getch();
return 0;
}

output:
enter a number
9
not a prime number

continue statement

If I want to print numbers from 1 to 10 with the exception of 2 how???

continue :When continue is encountered inside any loop, control automatically passes to the beginning of the loop.
A continue is usually associated with an if.

Example
#include<stdio.h>
#include<conio.h>
int main()
{
int i;
for(i=0;i<=10;i++)
{
if(i==2)
continue;
printf("%d\n",i);
}
getch();
return 0;
}

output:
0
1
3
4
5
6
7
8
9
10


//program to print odd numbers

#include<stdio.h>
#include<conio.h>
int main()
{
int i;
for(i=0;i<=10;i++)
{
if(i==2)
continue;
printf("%d\n",i);
}
getch();
return 0;

}

output:
1
3
5
7
9

Tech 2

do-while

Confused with while and do-while?

simple thing- while executes the set of instructions in the loop only if the condition specified is true. On the other hand, do- while executes the set of instructions atleast once what ever the condition may be.

syntax:

while                                                                    do-while

while(i<=10)                                                       do
{                                                                          {
 printf("%d",i);                                                          this;
                                                                                and this;
                                                                           }while(this condition is true);
i++;
}


1.Example program
#include<stdio.h>
#include<conio.h>
int main()
{
while(4<2)
printf("this is while");
return 0;
}


output:
No output will be generated as the condition fails.


#include<stdio.h>
#include<conio.h>
int main()
{
do
   {
      printf("this is do- while");
    }while(5<2);
return 0;
}


output:
this is do-while
since it is do-while the printf statement will be executed atleast once.

Loops-for

for is the most popular looping instruction.The for allows us to specify three things about a loop in a single line:

1.Setting a loop counter to an initial value
2.Testing the loop counter to determine whether its value has reached the number of repetitions desired
3.Increasing the value of loop counter each time the program segment within the loop has been executed.

syntax for for- loop

for(initialization; test counter; increment counter)
{
do this;
do this;
}


//program to print N numbers

#include<stdio.h>
#include<conio.h>
int main()
{
int i,n;
printf("Till which number do you want to print");
scanf("%d",&n);
for(i=0;i<=n;i++)
{
printf("%d\n",i);
}
  getch();
  return 0;
}

output:

Till which number do you want to print 4

0

1

2

3

4

//Calculation of simple interest for 3 sets of p, n, r

Formats:

 for(i=10;         i;                    i--)
printf("%d",i);

for(i<4;                   j=5;            j=0)
printf("%d",i);


for(i=1;              i<=10 ;             printf("%d",i++))
;

Loops- while

The programs that we have discussed so far used either a sequential or a decision control instruction. In the first one, the calculations were carried out in a fixed order; while in the second one, an appropriate set of instructions were executed depending on the outcome of the condition being tested.

             These programs have a limited scope, because when executed they always perform the same series of actions, in the same way exactly once. But in real life if something is worth doing, it has to be done more than once.

Loops:
           The versatility of the computer lies in its ability to perform a set of instructions repeatedly. This involves repeating some portion of the program either a specified number of times or until a particular condition is being satisfied.This repetitive operation is done through a loop control instruction.


Syntax of while loop:

while(condition)
{


set of statements;
increment statement;


}

//simple programs using while loop

//calculation of simple interest for 3 sets of p, n and r
#include<stdio.h>
#include<conio.h>
int main()
{
int p, n, count;
float r, si;
count=1;
while(count<=3)
{
  printf("enter values of p, n and r\n");
scanf("%d%d%f",&p,&n,&r);
si=p*n*r/100;
printf("simple interest =rs %f\n",si);
count=count+1;
}
return 0;
}

output: 
enter values of p, n and r
1000 5 13.5
simple interest =rs 675.000000
enter values of p, n and r
2000 5 13.5
simple interest =rs 1350.000000
enter values of p, n and r
3500 5 3.5
simple interest =rs 612.500000


//To print numbers

#include<stdio.h>
#include<conio.h>
int main()
{
int i=0,n;
printf("how many numbers do you want to print\n");
scanf("%d",&n);
while(i<=n)
  {    
printf("%d\n",i);
i++;
  }
  getch();
return 0;
}

output:
how many numbers do you want to print
5
0
1
2
3
4
5


//To print even numbers
#include<stdio.h>
#include<conio.h>
int main()
{
int i=1,n;
printf("enter the number\n");
scanf("%d",&n);
printf("0\n");
while(i<=n)
{
if(i%2==0)
printf("%d\n",i);
i++;
}
  getch();
  return 0;
}

output:

enter the number

12

0

2

4

6

8

10

12

Entertainment

Analogies- Animal/Bird/ and sound

There are different words in English to describe the sounds made by different animals and birds.

One type of Analogy questions tests your knowledge of these words

EX: lion:roar::cat:mew

A lion roars;a cat mews

donkey:bray::horse:neigh

A donkey brays;a horse neighs 

ape	gibber	hog	grunt
bee	hum	lamb	bleat
camel	grunt	mouse	squeak
cow	moo, low	raven	croak
dove	coo	thrush	whistle
elephant	trumpet	bear	growl
frog	croak	bull	bellow
hen	cluck	cock	crow
jackal	howl	donkey	bray
lion	roar	eagle	scream
pig	grunt	fox	yelp
squirrel	chirp	goose	cackle
ass	bray	horse	neigh
bird	twitter, chirp	lark	sing
cat	mew	owl	hoot
dog	bark	serpent	hiss
duck	quack	turkey	gobble
fly	buzz	goat	bleat

Analogies-Habitat

English language has specific words for places where particular animals, birds, insects, plants or trees either naturally or are grown by us.

EX: dog:kennel::pig:sty

dogs are grown in a kennel;pigs are grown in a sty

bat	cave	owl	barn
convict	prison	rabbit	burrow, hutch, warren
dove	cote	soldier	barrack
fish	aquarium	tree	arboretum
horse	stable, corral	bird	nest
lunatic	asylum	delinquent	reformatory
nun	convent	eskimo	igloo
pig	sty	gondola	canal
sheep	fold, pen	lion	den
student	dormitory	mouse	hole
bee	hive, apiary	pea	pod
cow	byre	spider	web
eagle, hawk	aerie	wolf	lair
fowl	coop	monk	abbey, monastery
Indian	tepee, teepee

Analogies-Young and the Grown up

English language has different single words for referring to the same animal when it is young and when it has grown up.

EX: cub:tiger::calf:cow
A cub is a young tiger; a calf is a young cow

       chicken:hen::cygnet:swan
A chicken is a young hen; a cygnet is a young swan

acorn	oak	lamb	sheep
child	man	poult	turkey
cygnet	swan	sapling	tree
fingerling	fish	tadpole	frog
gosling	goose	caterpillar	butterfly
kitten	cat	cub	tiger, lion, bear
plant	tree	fawn	deer
pup	dog, seal	foal	horse
squab	pigeon	joey	kangaroo
calf	cow	piglet	pig
colt	filly	pullet	chicken
duckling	duck	shoat	pig
fledgling	bird	whelp	dog
heifer	cow	owllet	owl

Analogies- Person and Tool

If you know these categories, we can easily identify the relation between the given pair of words.

EX 1: Carpenter:saw::Writer:Pen

A carpenter uses a saw; A writer uses a pen


EX 2: cowboy:lasso::auctioneer:gavel

       

angler	tackle	archer	arrow, bow, quiver
artist	brush	auctioneer	gavel
baker	owen	biologist	microscope
blacksmith, farrier	anvil	boatman	oar
boxer, pugilist	glove	carpenter	chisel, saw, drill, sand paper
cobbler	last	cowboy	lariat, lasso
diver	flippers	farmer	plow, scythe, sickle, hoe
fisherman	net, seine	gardener	rake
golfer	club, spikes	mason	trowel, shovel
painter	brush	referee	whistle
plumber	wrench	physician	sethoscope
sculptor	chisel	sailor	sextant
seamstress	needle	spinner	spindle
surgeon	forceps,  lancet, scalpel	trapper	snare
weaver	loom	woodsman	axe

Material to crack verbal

https://drive.google.com/file/d/0B7yZOU3gyDrPT3lfMVpteEptdE0/view?usp=sharing

Switch

The control statement that allows us to make a decision from the number of choices is called a switch statement.

Syntax:

switch(integer expression)
{
case constant 1:
            do this;
case constant 2:
            do this;
case constant 3:
              do this;
default:
         do this;
}


Examples:
1.//program

#include<stdio.h>
#include<conio.h>
int main()
{
int i=2;
switch(i)
{
case 1:
printf("in class 1");
break;
case 2:
printf("in class 2");
break;
case 3:
printf("in class 3");
break;
default:
printf("in default");

}
getch();
return 0;

}

output:
in class 2


2.//without break

#include<stdio.h>
#include<conio.h>
int main()
{
int i=2;
switch(i)
{
case 1:
printf("in class 1\n");

case 2:
printf("in class 2\n");

case 3:
printf("in class 3\n");

default:
printf("in default\n");

}
getch();

return 0;

}

output:

in class 2

in class 3

in default

//It executes the 2 case and all the remaining cases after the 2 case as the break statement is not present.

//We can write the cases in any order, not necessarily in ascending or descending order.

3.//cases arranged in random order

#include<stdio.h>
#include<conio.h>
int main()
{
int i=2;
switch(i)
{
case 1:
printf("in class 1\n");

case 3:
printf("in class 3\n");

   case 2:
printf("in class 2\n");

default:
printf("in default\n");

}
getch();
return 0;

}

output:

in class 2

in default

4.//Arithmetic operations -break statement is not present

#include<stdio.h>

#include<conio.h>

int main()

{

int a,b,x;

printf("enter two values\n");

scanf("%d%d",&a,&b);

printf("select operation +=1 or -=2 or /=3 or *=4 or %=5\n");

scanf("%d",&x);

switch(x)

{

case 1:

printf("sum of two numbers is %d\n",a+b);

case 2:

printf("difference of two numbers is %d\n",a-b);

case 4:

printf("product of two numbers is %d\n",a*b);

case 3:

printf("division of two numbers is %d\n",a/b);

case 5:

printf("modular division results %d\n",a%b);

default:

printf("enter any one of the operations");

}

getch();

return 0;

}

output:

enter two values

10

2

+=1 or -=2 or /=3 or *=4 or %=5

1

sum of two numbers is 12

difference of two numbers is 8

product of two numbers is 20

division of two numbers is  5

modular division results 0

enter any one of the operations

5.//To print month

#include<stdio.h>

#include<conio.h>

int main()

{

int month;

printf("enter month\n");

scanf("%d",&month);

switch(month)

{

case 1:

printf("january");

break;

case 2:

printf("February");

break;

case 3:

printf("March");

break;

case 4:

printf("April");

break;

case 5:

printf("May");

break;

case 6:

printf("June");

break;

case 7:

printf("July");

break;

case 8:

printf("August");

break;

case 9:

printf("September");

break;

case 10:

printf("October");

break;

case 11:

printf("November");

break;

case 12:

printf("December");

break;

}

getch();

return 0;

}

output:

enter month

5

May

Aptitude-profit and loss

This chapter deals with buying and selling of goods and the profit or loss involved in the transactions.

Cost price(cp): cost refers to the price at which an article is bought.

selling price(sp): selling price refers to the price at which an article is sold.

profit:
       If an article is sold at a price greater than the price for which it was bought, the trader makes a profit.

         Profit=selling price-cost price

Loss:
   If an article is sold at a price less than the price for which it was bought, then the trader makes a loss.

      Loss=cost price- selling price

Marked price(mp):
           The price indicated on the product or the price marked on the product is called the marked price.

 Discount:
          Trader sometimes sells goods at a price lower than the price marked on the product. This is called discount.

 Discount=Marked price-selling price


Profit percentage=  selling price-cost price  *100
                                          cost price

Loss percentage= cost price- selling price *100
                                        cost price
                               

Example:
         
1. Cost price= 100
 I want to earn 50% profit on selling this product so,
 2.Selling price= 100+ 50%(100)  =  150
People ask for discount so, I have to give a discount to them in spite of getting my 50% profit i.e., 50 rs.
Suppose I offer them a discount of 20 % on mrp, what should be my mrp so that I can get my profit


Ans:  mrp- 20%(mrp)= 150
     
         marked price(mrp)  = 187.5 rs


Questions to solve:

1.Raj and Ajay buys rice bags worth 45000 each. If Raj sells his rice bag at a profit of 15% and Ajay sells his rice bags at a loss of 5%. What is the overall profit/loss percentage?

Ans: 5%


2. Raju buys a book for Rs.100 and sells it at Rs 120. What was his percentage of profit in the deal?
Ans: 20%


3.A merchant buys goods worth Rs 30000 and pays Rs 25000 for their transportation. He sells the goods and makes a profit of 10%. How much did he sell the goods for?

4.The marked price of a wrist watch is 2900.If a discount of 15% is given on the watch, what is the selling price of the watch?

5.Two packs of rice are marked at the same price. The first pack of rice is sold at 2% discount and the seller makes a profit of 4% in it.The second pack of rice is sold at 4% discount and the seller makes a profit of 2% in it. What is the ratio of C.P of both the rice packs?
Ans:      833

              832

Technology 1

Idioms and phrases

to make clean breast of	to confess without of reserve
child's play	a very easy thing
bird's eyeview	to general view from above
to scale up	to measure
to clear the air	to remove tension
to chew the chud	to think deeply
to keep one's temper	to be in good mood
tipped off	given advanced information
between the devil and the deep sea	to be in dilemma
to cut the crackle	to stop talking and start
out and out	absolutely
the cold shoulder	ignored me
passed himself off	pretended to be
no axe to grind	to act selflessly
hanging fire	going on slowly
die in harness	die while still working
to play foul	to do something wrong
to give currency to	to pay much attention to
big draw	a huge attraction
a fool's paradise	to live in illusions
the alpha and the omega	the beginning and the end
lost heart	became discouraged
to miss the boat	to miss an opportunity
to have cold feet	to be reluctant
let the grass grow under his feet	loitered around
with might and main	with full vigour
on the nod	on credit
back stairs influence	secret and unfair influence
to see red	to find fault with
rainy days	unlucky times
let on	reveal
a good samaritan	a genuinely helpful person
blue blood	an aristocrat
at one's wit's end	to be completely confused
to play with	fool
black sheep	an unworthy person
pillar to post	one place to another
a snake in the grass	an unrecognizable enemy
have a go	make an attempt
to turn over a new leaf	to change one's behaviour for the better
oily tongue	flattery
lions share	greater share of a thing
to bury the hatchet	to make up a quarrel
at sea	perplexed
in deep water	in real trouble
to look blue	to look sad
stem from	originate
take it ill	to be offended
in a delicate state	hanging by a hair
to bell the cat	to take lead in danger

Verb forms

Base form	past tense	past participle
be	was/were	been
begin	began	begun
break	broke	broken
bring	brought	brought
buy	bought	bought
build	built	built
choose	chose	chosen
come	came	come
cost	cost	cost
cut	cut	cut
creep	crept	crept
do	did	done
draw	drew	drawn
drive	drove	driven
eat	ate	eaten
feel	felt	felt
find	found	found
get	got	got
give	gave	given
go	went	gone
have	had	had
hear	heard	heard
hit	hit	hit
hold	held	held
keep	kept	kept
know	knew	known
leave	left	left
lead	led	led
let	let	let
lie	lay	lain
lose	lost	lost
make	made	made
mean	meant	meant
meet	met	met
pay	paid	paid
put	put	put
run	ran	run
say	said	said
see	saw	seen
sell	sold	sold
send	sent	sent
set	set	set
sleep	slept	slept
sit	sat	sat
speak	spoke	spoken
spend	spent	spent
stand	stood	stood
swear	swore	sworn
swim	swam	swum
swing	swung	swung
take	took	taken
teach	taught	taught
tell	told	told
think	thought	thought
understand	understood	understood
wear	wore	worn
win	won	won
write	wrote	written

Dressing sense for an interview

Friends what ever you wear for an interview shows how dignified you are, your interests.
I hope this video will be helpful for you.

C language- if-else statement

The if statement will execute a single statement, or a group of statements when the expression following if evaluates to be true.It does nothing when the expression evaluates to false.
     By using if-else statement we can execute one group of statements if the expression evaluates to be true and another group of statements if the expression evaluates to false.


syntax:

if(condition)
do this;
else
do this;


if(condition)
{
execute 1;
execute 2;
}
else
{
execute 3;
execute 4;
}




1.//program to check if the given number is even or odd
#include<stdio.h>
#include<conio.h>
int main()
{
int x;
printf("enter a number\n");
scanf("%d",&x);
if(x%2==0)
printf("the given number is even");
else
printf("the number is odd");
return 0;
getch();

}

output:
enter a number
20
the given number is even


2.//Is 3=3.0?
#include<stdio.h>
#include<conio.h>
int main()
{
int x=3;
float y=3.0;
if(x==y)
{
printf("x and y are equal\n");
printf("3 and 3.0 are equal\n");
}
else
{
printf("x and y are not equal");
}
return 0;
getch();
}

output:
x and y are equal
3 and 3.0 are equal


3.//find error
#include<stdio.h>
#include<conio.h>
int main()
{
int x=2;
if(x==2&&x!=0);
printf("hello\n");
else
printf("bye");
return 0;
getch();
}

output: error
'else' without a previous 'if'


4.//interesting

#include<conio.h>
int main()
{
int x,y,z;
printf("enter three numbers\n");
scanf("%d%d%d",&x,&y,&z);
if(x&&y&&z)  
printf("you entered all non zero numbers\n");
else
printf("you entered a zero");
return 0;
getch();
}

output:
enter three numbers
1
5
8
you entered all non zero numbers
//if(&&5&&8)  is equal to  if(1&&1&&1)

C language- if statement

C has three major decision making instructions-the if statement, the if-else statement, and the switch statement.

In sequential control structure various steps are executed sequentially, we don't have to do anything at all . That is by default, the instructions in a program are executed sequentially. However in reality, we rarely want the instructions to be executed sequentially. Many a times we want a set of instructions to be executed in one situation and a different set of instructions in the other case.


             Hence a decision control instruction can be implemented in C using
1. The if-statement
2.The if-else statement
3.The conditional operators


//Syntax of if-statement

if(condition is true)
execute this statement;


In the () we can write anything which finally results either 1 or 0
If the result is 1 the statement immediately followed by the if-statement is executed then the control shifts to the next statement.

1.//program to allow a user into a website

#include<stdio.h>
#include<conio.h>
int main()
{
int age;
printf("hello user please enter your age\n");
scanf("%d",&age);
if(age>18)
printf("you can see the content of this website");
printf("whether you are >18 or <18 this statement gets printed");
getch();
}


output:
hello user please enter your age
20
you can see the content of this website
whether you are >18 or <18 this statement gets printed


2.//program to print even numbers
#include<stdio.h>
#include<conio.h>
int main()
{
int i, n;
printf("enter the final number");
scanf("%d",&n);
for(i=0;i<=n;i++)
{
if(i%2==0)
printf("%d\n",i);
}
getch();
}

output:
enter the final number
10
0
2
4
6
8
10


3.//calculation of total amount
#include<stdio.h>
#include<conio.h>
int main()
{
int qty,dis=0;
float rate,tot;
printf("enter quantity and rate\n");
scanf("%d%f",&qty,&rate);
if(qty>1000)
dis=10;
tot=(qty*rate)-(qty*rate*dis/100);
printf("total expenses=rs %f\n",tot);
return 0;
getch();
}

output:
enter quantity and rate
1500
10
total expenses =rs 1350.0000


4.//logical condition
#include<stdio.h>
#include<conio.h>
int main()
{
int a=300,b,c;
if(a>=400)
b=300;
c=200;
printf("%d\n%d\n",b,c);
return 0;
getch();
}

output:
0
200


5.//logical statement
#include<stdio.h>
#include<conio.h>
int main()
{
int x=10,y=20;
if(x==y)
printf("%d\n%d\n",x,y);
return 0;
getch();

}

output:
no output as the condition did not satisfy

Interview Questions

Guys here are the most frequently asked questions in interviews to test your communication skills, confidence level and your passion to work in the organization.

1.Tell me about yourself
2.How do you compensate for your weakness?
3.How do you make decisions?
4.How do you take advantage of your strengths?
5.How will you identify problems and opportunities on the job?
6.How would your friends describe you?
7.How would your teachers describe you?
8.How would the person who likes you least describe you?
9.I see you had an internship, did you pursue a full time job with them?
10.If I were to ask your teachers, what are your greatest things what would they say?
11.If you could choose any company to work for, which one it could be?
12.If you were the CEO of this company, what are the top two things you would do?
13.If you won the lottery, would you still work?
14.Is it more important to be lucky or skillful?
15.Tell me a suggestion you had made, that was implemented?
16.Tell me about a time when you helped someone to take an initiative?
17.Tell me about the time when you planned and co-ordinate a project from start to finish
18.Tell me about a time when you are angry/upset
19.Tell me about the worst teacher you ever had
20.Under what circumstances do you think you can be dishonest
21.What are some of your leadership experiences?
22.What are the most important qualities of successful people?And how do you rate yourself in these areas?
23.What are your long term career goals?
24.What changes have you made in yourself so that you could work better with your friends/classmates?
25.What do you do to grow your skills and knowledge of the industry?
26.What do you expect from this job?
27.What gets you up in the morning?
28.What historical figure do you admire and why?
29.What is the one thing you would like to do better? What is your plan for accomplishing that?
30.What is the last book you read for fun?
31.What is the most courageous action or unpopular stand that you have ever taken?
32.What is the most important thing you are looking for in a company
33.What is your biggest weakness that really a weakness and not a secret strength?
34.What is your favorite website?
35.What qualities in your classmates bother you most?
36.What would you do if you find out the company you worked for is doing something illegal?
37.What would you do if you get behind on schedule with a project?
38.When did any of your classmates challenged you?
39.What would you look to accomplish in the company in the 3 months?
40.Whats your favorite food/movie/book/game? And how would you convince someone who hated it to try it?
41.Why did you get into ECE/CSE/MECH/IT/CIVIL  particularly?
42.Would you be rather liked or feared?
43.Are you a leader or a follower?
44.Are you willing to travel?
45.Describe a time when you were asked to do something you wern't do? How did you handle it?
46.Describe a time when your team did not agree
47.Describe a college or school instance where you messed up?
48.Describe how you would complete a typical task on this job?
49.Describe the boss who could get the very best work from you?
50.Discuss your educational background
51.Discuss your resume
52.Do you know anyone who works for us?
53.Does a company need 'B' players (or) is it better of having 'A' players on staff ? why?
54.Give an example of how you set goals and achieve them
55.Have you had to turn a friend with a bad attitude into one with a good attitude?
56.How did you learn/hear about this position?
57.How did you prepare for this interview?
58.Give an example of how you are able to motivate your friends at college
59.What are you strengths?
60.How do you rate me as an interviewer?

C language basics 4- search programmes

1.//linear search

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

int main()
{
   int array[100], search, c, n;

   printf("Enter the number of elements in array\n");
   scanf("%d",&n);

   printf("Enter %d integer(s)\n", n);

   for (c = 0; c < n; c++)
      scanf("%d", &array[c]);

   printf("Enter the number to search\n");
   scanf("%d", &search);

   for (c = 0; c < n; c++)
   {
      if (array[c] == search)     /* if required element found */
      {
         printf("%d is present at location %d.\n", search, c);
         break;
      }
   }
   if (c == n)
      printf("%d is not present in array.\n", search);
      getch();

   return 0;

}



output:
Enter the number of elements in array
6
14
12
15
16
17
18
Enter the number to search
17
17 is present at location 4




2.//Binary search

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

int main()
{
   int c, first, last, middle, n, search, array[100];

   printf("Enter number of elements\n");
   scanf("%d",&n);

   printf("Enter %d integers\n", n);

   for (c = 0; c < n; c++)
      scanf("%d",&array[c]);

   printf("Enter value to find\n");
   scanf("%d", &search);

   first = 0;
   last = n - 1;
   middle = (first+last)/2;

   while (first <= last) {
      if (array[middle] < search)
         first = middle + 1;  
      else if (array[middle] == search) {
         printf("%d found at location %d.\n", search, middle);
         break;
      }
      else
         last = middle - 1;

      middle = (first + last)/2;
   }
   if (first > last)
      printf("Not found! %d is not present in the list.\n", search);
      getch();

   return 0;  

}


output:
Enter number of elements
5
Enter 5 integers
12
18
19
24
56
Enter value to find
24
24 is found at location 3



3.//palindrome ex: 121   1221
#include <stdio.h>
#include<conio.h>

int main()
{
   int n, reverse = 0, temp;

   printf("Enter a number to check if it is a palindrome or not\n");
   scanf("%d",&n);

   temp = n;

   while( temp != 0 )
   {
      reverse = reverse * 10;
      reverse = reverse + temp%10;
      temp = temp/10;
   }

   if ( n == reverse )
      printf("%d is a palindrome number.\n", n);
   else
      printf("%d is not a palindrome number.\n", n);
      getch();

   return 0;

}
output:
Enter a number to check if it is a palindrome or not
121
121 is a palindrome number





4./* Fibonacci Series c language */
#include<stdio.h>
#include<conio.h>

int main()
{
   int n, first = 0, second = 1, next, c;

   printf("Enter the number of terms\n");
   scanf("%d",&n);

   printf("First %d terms of Fibonacci series are :-\n",n);

   for ( c = 0 ; c < n ; c++ )
   {
      if ( c <= 1 )
         next = c;
      else
      {
         next = first + second;
         first = second;
         second = next;
      }
      printf("%d\n",next);
   }
   getch();

   return 0;
}


output:
Enter the number of terms
10
0
1
1
2
3
5
8
13
21
34



5.
/* Bubble sort code */

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

int main()
{
  int array[100], n, c, d, swap;

  printf("Enter number of elements\n");
  scanf("%d", &n);

  printf("Enter %d integers\n", n);

  for (c = 0; c < n; c++)
    scanf("%d", &array[c]);

  for (c = 0 ; c < ( n - 1 ); c++)
  {
    for (d = 0 ; d < n - c - 1; d++)
    {
      if (array[d] > array[d+1]) /* For decreasing order use < */
      {
        swap       = array[d];
        array[d]   = array[d+1];
        array[d+1] = swap;
      }
    }
  }

  printf("Sorted list in ascending order:\n");

  for ( c = 0 ; c < n ; c++ )
     printf("%d\n", array[c]);
 getch();
  return 0;

}

output:
Enter number of elements
5
Enter 5  integers
2
54
3
15
55
Sorted list in ascending order
2
3
15
54
55