Code Box C

Inserting elements into integer array in C

2015-10-19T21:07:00.000+05:30

/*Program to create an integer array and printing
elements of array*/

#include<conio.h>
void main()
{
int a[10],i;
clrscr();
printf("\nEnter 5 numbers:\n");

//inserting elements in array
for(i=0;i<5;i++)
{
printf("\nElement %d =>",i+1);
scanf("%d",&a[i]);
}

//printing elements in array
printf("\nElements in array:");
for(i=0;i<5;i++)
{
printf("\nElement %d =>",i+1);
printf("%d",a[i]);
}
getch();
}

-------------------------------------------------------------------------
Explanation:
--------------------------------------------------------------------------
In above program we have created an array of integer type with size(maximum 10) so our system
automatically index it as...

And we are inserting values using for loop with loop variable i=0 to i<5
that means 5 values 0, 1, 2, 3, 4.

Similarly after successful inserting values into array we are printing those values using again another
for loop.
--------------------------------------------------------------------------------------------------------------------------

Creating integer Array in C and inserting values

2015-10-18T21:24:00.000+05:30

Array

Syntax :

Data_Type Array_Name[Size];

A collection or group of similar type of datatypes.

Means if you create an array of integer type that means it can hold only integer values.

An array can be..
1. Integer type
2. Float type
3. Character type
4. Pointer type ( to store pointers)

In C we use array to create string or we can say an array of character is treated as a string.

Note: C does not provide any exception or error on array out of bound.
That means if you try to insert values more than the specified size of your array in program, during run time it will accept all. But it holds only up to its actual size.

* Array always occupy continuous space while allocation in memory.

-----------------------------------------------------------------------
Just a basic program to create an integer type array with size 10 and inserting values through for loop.

/*Program to create an integer array */
#include<conio.h>
void main()
{
int a[10]; //integer type array
int i;
clrscr();

printf("\nEnter 5 numbers:\n");

//Inserting values into array
for(i=0;i<5;i++)
{
printf("\nElement %d =>",i+1);
scanf("%d",&a[i]);
}
getch();
}

Program to reverse any string in C

2015-09-24T21:27:00.000+05:30

// Program to reverse a string
#include<conio.h>
#include<stdio.h>
#include<string.h>
void main()
{
char name[20],rev[20];
int i,len,j;

clrscr();
printf("\nEnter a string:");

scanf("%s",&name);

printf("\n name entered is: %s",name);

len=strlen(name);

printf("\nLength of string is: %d",len);
i=len-1;
j=0;
while(i>=0)
{
rev[j]=name[i];
printf("\n j=%d i= %d of %c",j,i,rev[j]);
j=j+1;
i=i-1;
}
printf("\n reverse of string is: ");
for(j=0;j<len;j++)
{
printf("%c",rev[j]);
}

getch();
}

Program to find given number is palindrome number or not by for loop in C.

2014-12-20T23:36:00.001+05:30

Code Box
-----------------------------------------

/*Program to find given number is palindrome number or not by for loop in C*/

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

void main()
{
int num,num1,len,rem,newnum;
clrscr();

newnum=0;
printf("\n\tPalindrome Number Checker");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number
for(len=0;num1>=1;len++)
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem; //Reverse formula
}

if(num==newnum)
{
printf("\nNumber %d is palindrome number ",num);
}
else
{
printf("\nNumber %d is not a palindrome number ",num);
}

getch();

}

--EXPLANATION----------------------------------

To find given number is palindrome or not we need following things to do

Create a number reverse formula
Find reverse of the given number
Check given number and reverse number are same or not.

this is the simplest way to find that the given number is a palindrome or not.

But this is the human way not for computer. So, you need to convert this strategies into codes.

For doing this we simply follow:

Problem understanding done!! as we know the concept of finding palindrome number.
Now we need to find variables possible.
Logic Building means what are the things we need Like a loop to find reverse, we need to keep given number safe so that we can use it again at end and if else for checking at end.

Now we have every thing concept, variables and logic.
Start writing codes...

Take input a number from user
reverse it using reverse formula
use if else to check input number is equal to reverse number or not
print the results.

If you have any more query or any problem feel free to comment below at codeboxc. we will try to reach you soon with answer.... Learn.Explore.Share!!

Program to find given number is palindrome number or not by while loop in C.

2014-12-20T23:32:00.003+05:30

Code Box
-------------------------------------------

/*Program to find given number is palindrome number or not by while loop in C */

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

void main()
{
int num,num1,rem,newnum;
clrscr();

newnum=0;
printf("\n\tPalindrome Number Checker");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

while(num1>=1)
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem; //Reverse formula
}

if(num==newnum)
{
printf("\nNumber %d is palindrome number ",num);
}
else
{
printf("\nNumber %d is not a palindrome number ",num);
}

getch();

}

--EXPLANATION----------------------------------

To find given number is palindrome or not we need following things to do

Create a number reverse formula
Find reverse of the given number
Check given number and reverse number are same or not.

this is the simplest way to find that the given number is a palindrome or not.

But this is the human way not for computer. So, you need to convert this strategies into codes.

For doing this we simply follow:

Problem understanding done!! as we know the concept of finding palindrome number.
Now we need to find variables possible.
Logic Building means what are the things we need Like a loop to find reverse, we need to keep given number safe so that we can use it again at end and if else for checking at end.

Now we have every thing concept, variables and logic.
Start writing codes...

Take input a number from user
reverse it using reverse formula
use if else to check input number is equal to reverse number or not
print the results.

Here we are using while loop to find reverse of the given number.

If you have any more query or any problem feel free to comment below at codeboxc. we will try to reach you soon with answer.... Learn.Explore.Share!!

Program to find given number is palindrome number or not by do while loop in C.

2014-12-20T23:29:00.000+05:30

Code Box
---------------------------------------------

/*Program to find given number is palindrome number or not by do while loop in C*/

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

void main()
{
int num,num1,rem,newnum;
clrscr();

newnum=0;
printf("\n\tPalindrome Number Checker ");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number
do
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem;
}while(num1>=1);

if(num==newnum)
{
printf("\nNumber %d is palindrome number ",num);
}
else
{
printf("\nNumber %d is not a palindrome number ",num);
}

getch();

}

Program to find reverse of a number by do while loop in C.

2014-12-19T19:26:00.000+05:30

Code Box
---------------------------------------------

/*Program to find reverse of a number by do while loop in C*/

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

void main()
{
int num,num1,rem,newnum;
clrscr();

newnum=0;
printf("\n\tReverse Number maker");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

printf("\nBy Method 1:");
while(num1>=1)
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem;
}

printf("\nReverse of number is : %d",newnum);
printf("\n-------------------------");

printf("\nBy Method 2:");
while(num1!=0)
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem; //formula to reverse
}

printf("\nReverse of number is : %d",newnum);

getch();

}

Program to find reverse of a number by for loop in C.

2014-12-19T19:22:00.000+05:30

Code Box
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/*Program to find reverse of a number by for loop in C*/

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

void main()
{
int num,num1,len,rem,newnum;
clrscr();

newnum=0;

printf("\n\tReverse Number maker");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

for(len=0;num1>=1;len++)
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem; //Reverse formula
}

printf("\nReverse of number is : %d",newnum);

getch();

}

Program to find reverse of a number by do while loop in C.

2014-12-19T19:17:00.000+05:30

Code Box
------------------------------------------

/*Program to find reverse of a number by do while loop in C*/

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

void main()
{
int num,num1,rem,newnum;
clrscr();

newnum=0;
printf("\n\tReverse Number maker");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number
do
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem;
}while(num1>=1);

printf("\nReverse of number is : %d",newnum);
getch();
}

----Explanation------------------------------------------------------
By reverse of any number means just reversing the sequence of digits of given number.

For example: 1234 is a given number than it's reverse is 4321.

In above program we use do while loop to find reverse of number.

we use num1=num to protect value of num in our program because while calculating reverse we divide it til it becomes 1.
rem=num1%10; gives us remainder each time means the last digit because of modulus operator.
num1=num1/10; reduce the value of num1 by 10 each time. means removes last single digit every time.
newnum=newnum*10+rem; creates the reverse value by multiplying 10 to previous remainder.

On initial we take num1=1234 as input and newnum=0.

at do while loop :

first time

rem=1234%10 =4

num1=1234/10= 123

newnum= 0*10+4 = 4

test condition: num1>=1 => true as 123>=1

--------------------------

second time

rem=123%10 =3

num1=123/10= 12

newnum= 4*10+3 = 43

test condition: num1>=1 => true as 12>=1

-------------------------

Third time

rem=12%10 =2

num1=12/10= 1

newnum= 43*10+2 = 432

test condition: num1>=1 => true as 1>=1

-------------------------

Forth time

rem=1%10 =1

num1=1/10= 0

newnum= 432*10+1 = 4321

test condition: num1>=1 => false as 0>=1

So, we get the required reversed value.

Code Box C is a blog specially for all who want to learn C language or any other programming language. I just try to get you the basic concept behind the given problem because the concept to solve any given problem in all languages is always same. It will help you to speedup or boost your learning speed as well as your strategy building skills if you know the actual concept.

Program to find any number inside another number in C.

2014-12-19T00:29:00.001+05:30

Code Box
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/*Program to find given numbers presence in another number in C

or

Program to find any number inside another number in C.
*/

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

void main()
{
int num,num1,nf,rem,newnum,len,i,c;
clrscr();

len=0;
newnum=0;
c=0; //Counter Variable

printf("\n\tNumber Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

/*Single Digit number */
printf("\nEnter number to find:");
scanf("%d",&nf);

num1=num; //to save actual number

/*Number Reverse */
while(num1>=1)
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem;
len++;
}

for(i=1;i<=len;i++)
{
rem=newnum%10;
newnum=newnum/10;

if(rem==nf)
{
printf("\nNumber %d is present in %d at position %d.",nf,num,i);
}
else
{
c++; //Counter Variable
}
}

if(c==len) //Checking for absence
{
printf("\nNumber Not Found!!!");
}

getch();

}

Program to find place value of all digits of any number given by user using for loop in C.

2014-12-18T23:43:00.000+05:30

Code Box
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/*Program to find place value of all digits of any number given by user using for loop in C */

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

void main()
{
int num,num1,rem,pval,rev,len,l;
clrscr();

rev=0;
printf("\n\tSum of Digits Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

/*Finding the length of number & reverse */
for(len=0;num1>=1;len++)
{
rem=num1%10;
num1=num1/10;
rev=rev*10+rem;
}

/*Calculation the place value */
for(l=len-1;rev>=1;l--)
{
rem=rev%10;
rev=rev/10;
pval=rem*pow(10,l);
printf("\nPlace value of %d is = %d",rem,pval);
}
getch();

}

Program to find place value of all digits of any number given by user using while loop in C.

2014-12-18T23:39:00.004+05:30

Code Box
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/*Program to find place value of all digits of any number given by user using while loop in C */

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

void main()
{
int num,num1,rem,pval,rev,len;
clrscr();
len=0;
rev=0;
printf("\n\tSum of Digits Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

/*Finding the length of number & reverse */
while(num1>=1)
{
rem=num1%10;
num1=num1/10;
rev=rev*10+rem;
len++;
}

/*Calculation the place value */
len=len-1;
while(rev>=1)
{
rem=rev%10;
rev=rev/10;
pval=rem*pow(10,len);
printf("\nPlace value of %d is = %d",rem,pval);
len--;
}
getch();

}

Program to find place value of all digits of any number given by user using do while loop in C.

2014-12-18T23:36:00.000+05:30

Code Box
-------------------------------------------------

/*Program to find place value of all digits of any number given by user using do while loop in C. */

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

void main()
{
int num,num1,rem,pval,rev,len;
clrscr();
len=0;
rev=0;
printf("\n\tSum of Digits Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

/*Finding the length of number & Number reverse */
do
{
rem=num1%10;
num1=num1/10;
rev=rev*10+rem;
len++;
}while(num1>=1);

/*Calculation the place value */
len=len-1;
do
{
rem=rev%10;
rev=rev/10;
pval=rem*pow(10,len);
printf("\nPlace value of %d is = %d",rem,pval);
len--;
}while(rev>=1);

getch();

}

Program to find sum of digits of any number given by user using while loop in C.

2014-12-17T23:13:00.000+05:30

Code Box
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/*Program to find sum of digits of any number given by user max. 5 digits */

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

void main()
{
int num,num1,rem,sum,i;
clrscr();

sum=0;
printf("\n\tSum of Digits Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

while(num1>=1)
{
rem=num1%10;
num1=num1/10;
sum=sum+rem;
}

printf("\nSum of all digits = %d",sum);

getch();

}

Program to find sum of digits of any number given by user using for loop in C.

2014-12-17T23:08:00.001+05:30

Code Box
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/*Program to find sum of digits of any number given by user max. 5 digits*/

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

void main()
{
int num,num1,rem,sum,i;
clrscr();

sum=0;
printf("\n\tSum of Digits Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number
for(i=1;num1>=1;i++)
{
rem=num1%10;
num1=num1/10;
sum=sum+rem;
}

printf("\nSum of all digits = %d",sum);

getch();

}

Program to find sum of digits of any number given by user using do while loop in C.

2014-12-17T23:03:00.001+05:30

Code Box
------------------------------------------------

/*Program to find sum of digits of any number given by user max. 5 digit number */

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

void main()
{
int num,num1,rem,sum;
clrscr();

sum=0;
printf("\n\tSum of Digits Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

num1=num; //to save actual number

do
{
rem=num1%10;
num1=num1/10;
sum=sum+rem;
}while(num1>=1);

printf("\nSum of all digits = %d",sum);

getch();

}

Program to Solve Quadratic Equation Using Conditional operator and Switch in C.

2014-12-16T21:45:00.000+05:30

Code Box
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/* Program to Solve Quadratic Equation Using Conditional operator and Switch */

/* In quadratic equation we need values of a,b,c
and D=(b square -4.a.c)
and every thing depends on the value of D
*If D grater than 0 multiple and real root
*If D==0 only single root
*If D is less than 0 than imaginary roots

*/

#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
int a,b,c,D,n;

float x1,x2,D1;

clrscr();

printf("\nEnter Values");
printf("\n a = ");
scanf("%d",&a);

printf("\n b = ");
scanf("%d",&b);

printf("\n c = ");
scanf("%d",&c);

printf("\nEnterd Values are : a=%d b=%d c=%d",a,b,c);

printf("\nQuadratic Equation Calculation:");

D=(b*b)-(4*a*c);

printf("\nValue of Normal D= %d ",D);
D1=abs(D);
D1=sqrt(D1);

printf("\nValue of Squared D= %.3f ",D1);

n=(D>=0)?(D==0?2:1):3;

printf("\nValue of n : %d",n);

switch(n)
{
case 1:

//Multiple Roots
printf("\nReal & Multiple Roots");

x1=((b+D1)/(2*a));

x2=((b-D1)/(2*a));

printf("\n\nRoots are X1=%.3f X2=%.3f ",x1,x2);

break;

case 2:

//Single Root
printf("\nReal & Single Roots");

x1=((b)/(2*a));

printf("\n\nRoots are X1=%.3f",x1);

break;

case 3:

//Imaginary Part

printf("\nImaginary Roots");

printf("\nX1=(%d+%.3fi)/2*%d",b,D1,a);

printf("\nX2=(%d-%.3fi)/2*%d",b,D1,a);

break;

default:

printf("\nWrong Entry, Error!!!");
}

getch();
}

Program to convert temperature Fahrenheit to Celsius in C.

2014-12-16T21:23:00.000+05:30

Code Box
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/* Program to convert temperature Fahrenheit to Celsius in C */

#include<conio.h>
#include<stdio.h>
void main()
{
float c,f;
clrscr();

printf("\n\tTEMPERATURE CONVERTER \n\t[Fahrenheit to Celsius]");

printf("\n\tEnter temperature in F:");

scanf("%f",&f);

c=((f-32)*5)/9;

printf("\n\tF= %f equals to C= %f",f,c);

getch();
}

Program to convert temperature Celsius to Fahrenheit in C.

2014-12-16T21:18:00.000+05:30

Code Box
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/*Program to convert temperature Celsius to Fahrenheit in C */

#include<conio.h>
#include<stdio.h>
void main()
{
float c,f;
clrscr();

printf("\n\tTEMPERATURE CONVERTER \n\t[Celsius to Fahrenheit]");
printf("\n\tEnter temperature in C:");
scanf("%f",&c);

f=((c*9)/5)+32;

printf("\n\tC= %f equals to F= %f",c,f);

getch();
}

Program to check given character is in upper case or lower case and convert into upper or lower case in C.

2014-12-16T20:48:00.001+05:30

Code Box
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/* program to Check in put character is Lower or upper case and convert them into other case */

#include<stdio.h>
#include<conio.h>
void main()
{
int i;
char c;
clrscr();

printf("\nEnter a character :");
scanf("%c",&c);

i=c;

if(i>=97 && i<=122)
{
printf("\nEntered Character is Lower Case : %c",c);
i=i-32;
c=(char)i; /*Explicit type conversion */
printf("\nUpper case Character is: %c",c);

}
else if(i>=65 && i<=90)
{
printf("\nEntered Character is Upper Case : %c",c);
i=i+32;
c=(char)i; /*Explicit type conversion */
printf("\nLower Case Character is: %c",c);

}
else
{
printf("\nPlease enter a correct case Character");

}

getch();

}

Program to print number pattern using while loop in C.(Pattern 10)

2014-12-16T20:42:00.000+05:30

Code Box
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/*program to print number pattern by while loop

1
21
321
4321
54321

*/

#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,j,k;
i=1;
clrscr();

printf("\nEnter a number: ");
scanf("%d",&n);

while(i<=n)
{j=n;
k=i;
while(j>i)
{
printf(" ");
j--;
}

while(k>=1)
{

printf("%d",k);
k--;
}
printf("\n");
i++;
}
getch();

}

Program to print number pattern using do while loop in C.(Pattern 10)

2014-12-16T20:39:00.001+05:30

Code Box
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/*program to print number pattern by do while loop

1
21
321
4321
54321

*/

#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,j,k;
i=1;
clrscr();

printf("\nEnter a number: ");
scanf("%d",&n);

do
{j=n;
k=i;
do
{
printf(" ");
j--;
}
while(j>=i);

do
{
printf("%d",k);
k--;
}
while(k>=1);

printf("\n");
i++;
}
while(i<=n);

getch();

}

Program to print number pattern using for loop in C.(Pattern 10)

2014-12-16T20:34:00.003+05:30

Code Box
-----------------------------------------

/*program to print number pattern by for loop

1
21
321
4321
54321

*/

#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,j,k;

clrscr();

printf("\nEnter a number: ");
scanf("%d",&n);

for(i=1;i<=n;i++)
{
for(j=n;j>i;j--)
{
printf(" ");
}

for(k=i;k>=1;k--)
{

printf("%d",k);
}
printf("\n");

}
getch();
}

Program to print number pattern using while loop in C.(Pattern 9)

2014-12-16T20:29:00.003+05:30

Code Box
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/*program to print number pattern by while loop

1
12
123
1234
12345

*/

#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,j,k;
i=1;
clrscr();

printf("\nEnter a number: ");
scanf("%d",&n);

while(i<=n)
{j=n;
k=1;
while(j>i)
{
printf(" ");
j--;
}

while(k<=i)
{
printf("%d",k);
k++;
}
printf("\n");
i++;
}

getch();
}

Program to print number pattern using do while loop in C.(Pattern 9)

2014-12-16T20:25:00.005+05:30

Code Box
----------------------------------------------

/*program to print number pattern by do while loop

1
12
123
1234
12345

*/

#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,j,k;
i=1;
clrscr();

printf("\nEnter a number: ");
scanf("%d",&n);

do
{j=n;
k=1;
do
{
printf(" ");
j--;
}
while(j>=i);

do
{

printf("%d",k);
k++;
}
while(k<=i);
printf("\n");
i++;
}
while(i<=n);
getch();
}