Palindrome

 //WAP In C String is Palindrome
#include
void main()
 {
   char *S;
   int a,b;
   clrscr();
   printf("enter the sring->\t");
   scanf("%s",S);
   for(a=0;*(S+a)!='\0';a++);
   a=a-1;
   for(b=0;*(S+b)!='\0';b++)
     {
       if(*(S+b)!=*(S+a))
     {
        printf("it is not palindrome");
        getch();
        exit(1);
     }
       a=a-1;
     }
    printf("\n\n\n\n\t\t\t\tit is palindrome");
    getch();
 }

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Find out area of Triangle

/* formula is sqrt(s(s-a)*(s-b)*(s-c))*/

#include

#include

void main()
{
int a,b,c,p;
float s,area;
clrscr();
printf(“\n enter the 3 sides of a traingle:”);
scanf(“%d %d %d”,&a,&b,&c);
p=a+b+c;
s=p/2;
area=sqrt(s*(s-a)*(s-b)*(s-c));
printf(“\n area of traingle: %f”,area);
getch();

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Lowercase to uppercase

#include

void main()

{

  char ch[20];

  int i=0;

  printf("Enter a string: ");

  while((ch[i]=getchar())!='\n')

      {

        if((ch[i]>='a')&&(ch[i]<='z'))

        {

            ch[i]=ch[i]-32;

        }

        i++;

      }

      i++;

      ch[i]='';

  printf("The uppercase string: ");

  printf(ch);

}

The output of this program will be,

---

Enter a string: vijay pratap singh rajput

The uppercase string: VIJAY PRATAP SINGH RAJPUT

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Print I L U in C

#include
#include
void main()
{
    int i,j;
    clrscr();
    for(i=1;i<=3;i++)
    {
        printf("\n");
        for(j=1;j<=11;j++)
        {
            printf("I");
        }
    }
    for(i=1;i<=11;i++)
    {
        printf("\n");
        printf("    ");
        for(j=3;j>=1;j--)
        {
            printf("I");
         }
    }
    for(i=1;i<=3;i++)
    {
        printf("\n");
        for(j=1;j<=11;j++)
        {
            printf("I");
        }
    }
    for(i=1;i<=14;i++)
    {
         printf("\n\t\t\t\t");
         printf("");
         for(j=3;j>=1;j--)
         {
             printf("L");
         }
     }
     for(i=1;i<=3;i++)
     {
         printf("\n\t\t\t\t");
         for(j=1;j<=11;j++)
         {
             printf("L");
         }
     }
     for(i=1;i<=14;i++)
     {
         printf("\n\t\t\t\t\t\t\t\t");
         for(j=3;j>=1;j--)
         printf("U");
         printf("\t");
         for(j=3;j>=1;j--)
         printf("U");
      }
      for(i=1;i<=3;i++)
      {
         printf("\n\t\t\t\t\t\t\t\t");
         for(j=1;j<=11;j++)
         {
             printf("U");
         }
       }
       getch();
}
------------------------------------------------------------------------------------------------------
Output:-

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Write a C program to find the factors of a given integer.

#include(stdio.h>
#include(conio.h)
void main( )
{
int no,x;
clrscr( );
printf("Enter the required number:");
scanf("%d",&no);
printf("\nThe factors are:");
for(x=1; x<=no; x++)
{
if(no%x==0)
printf("\n%d",x);
}
getch( );
}

Output:-
Enter the required number: 27
The factors are:
1
3
9
27

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Write a C program to print all Armstrong numbers between 1 to 1000.

#include(stdio.h)

#include(conio.h)

int main( )

{

int no, temp, rem, sum;

clrscr( );

printf("Armstrong numbers between 1 and 1000 are:\n");

for(no=1; no<=1000; no++)

{

temp=no;

sum=0;

while(temp>0)

{

rem=temp%10;

sum=sum+(rem*rem*rem);

temp=temp/10;

}

if(no==sum)

printf("\n%d", no);

}

getch( );

return 0;

}

Output:

Armstrong numbers between 1 and 1000 are:

1

153

370

371

407

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Write a C program to print the given alphabet pyramid.

A B C D E F G G F E D C B A
A B C D E F F E D C B A
A B C D E E D C B A
A B C D D C B A
A B C C B A
A B B A
A A
-----------------------------------

#include
#include
int main( )
{
  int r,c,askey;
  clrscr( );
  
  for( r=7; r>=1; r-- )
  {
    askey=65;
    for(c=1; c<=r; c++ )
      printf("%2c", askey++ );

    askey--; 

    for(c=r; c>=1; c-- )
       printf("%2c", askey--);
   
   printf("\n");
  }
  getch();
  return 0;
}
 
Output:- 
A B C D E F G G F E D C B A
A B C D E F F E D C B A
A B C D E E D C B A
A B C D D C B A
A B C C B A
A B B A
A A
Note:- 

'r' and 'c' means rows and columns .

'askey' variable is for disp. values.

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Write a C program to print the given alphabet pyramid -2

A B C D E F G F E D C B A
  A B C D E F E D C B A
    A B C D E D C B A
      A B C D C B A
        A B C B A
          A B A
            A 


#include
#incldue
int main( )
{
  int r,c,askey,sp;
  clrscr( );
  
  for( r=7; r>=1; r-- )
  {
    for(sp=6; sp>=r; sp--)
        printf("  "); //2 spaces

    askey=65;
    for(c=1; c<=r; c++ )
      printf("%2c", askey++ );
    
    for(c=r-1; c>=1; c-- )
       printf("%2c", --askey);
   
   printf("\n");
  }
  getch();
  return 0;
}

Output:-
A B C D E F G F E D C B A
  A B C D E F E D C B A
    A B C D E D C B A
      A B C D C B A
        A B C B A
          A B A
            A 

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//MIDTERM PROGRAMMING QUESTION

 #include

#include

void main()

{

clrscr();

char a[20],s;

int age,m;

printf("\nENTER THE NAME OF THE DRIVER : ");

gets(a);

printf("\nENTER THE AGE OF DRIVER   :   ");

scanf("%d",&age);

printf("\nENTER THE SEX OF THE DRIVER (M- MALE, F-FEMALE) : ");

scanf("%s",&s);

printf("\nENTER THE MARITAL STATUS OF THE DRIVER(0-MARRIED, 1-UNMARRIED): ");

scanf("%d",&m);

if(m==0)

printf("\nDRIVER IS INSURED");

else if(m==1 && s=='M' && age>=30)

printf("\nDRIVER IS INSURED");

else if(m==1 && s=='F' && age>=25)

printf("\nDRIVER IS INSURED");

else

printf("\nDRIVER IS NOT INSURED");

getch();}

ALGORITHM

·                      Start

·                     Declare a[20],s as character

·                     Declare m as an integer

·                                                                                     Write(“name of driver”)

·                     Read(“name of driver”)

·                                                                                     Write(“age of driver”)

·                     Read(“age of driver”)

·                                                                                     Write(“sex of the driver”)

·                     Read(“sex of driver”)

·                                                                                     Write(“marital status”)

·                     Read(“marital status”)

·                                                                                     if(age==0)

       if(m==1 && s=='M' && age>=30)

 if(m==1 && s=='F' && age>=25)

·                     Write(“driver insured”)

·                     Else

·                     Write(“driver not insured”)

·                     Stop

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PROGRAM-27

// Program of reverse of string

#include

#include

#include

void main ()

{

int len,i,j;

char a[10],b;

clrscr();

printf("enter the string ");

scanf("%s",a);

len=strlen(a)-1;

for(i=len; i>=0; i--)

{

printf("%c",a[i]);

}

getch();

}

Algorithm

·                     start

·                     Declare len, i, j as integer

·                     Declare a[10] as character

·                     Write("the string ")

·                     Read(“the string”)

·                     len=strlen(a)-1

·                     for(i=len; i>=0; i--)

·                     Write(“a[i]”)

·                     Stop

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PROGRAM-25

// Program of bubble sorting

#include

#include

void main()

{

  clrscr();

  int i,a[30],n,j,temp;

  printf("Enter the number of array: ");

  scanf("%d", &n);

  for(i=1;i<=n;i++)

 {

  printf("Enter the element of array = ");

  scanf("%d", &a[i]);

 }

 for(i=1;i<=n;i++)

 {

  for(j=1;j<=n-1;j++)

 {

  if(a[j]>a[j+1])

 {

  temp=a[j];

  a[j]=a[j+1];

  a[j+1]=temp;

 }

 }

 }

 for(i=1;i<=n;i++)

{

 printf("a[%d] = %d,",i,a[i]);

}

 getch();

}

 

Algorithm

·                     Start

·                     Declare i, a[30], n, j, temp as integer

·                     Write("the number of array")

·                     Read(“the number of array”)

·                     for(i=1;i<=n;i++)

·                     Write("the element of array")

·                     Read(“the element of array”)

·                      for(i=1;i<=n;i++)

·                     for(j=1;j<=n-1;j++)

·                     if(a[j]>a[j+1])

·                     temp=a[j]

·                     a[j]=a[j+1]

·                     a[j+1]=temp

·                     for(i=1;i<=n;i++)

·                     Read(“I and a[i]”)

·                     Stop

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PROGRAM-24

//Program of maximum digit in array

#include

#include

void main()

{

  clrscr();

  int i,a[30],n,max;

  printf("Enter the number of array: ");

  scanf("%d", &n);

  for(i=0;i

  {

    printf("Enter the array = ");

    scanf("%d", &a[i]);

  }

   for(i=0;i

  {

   printf("a[%d] = %d,", i,a[i]);

   }

  max=a[0];

  for(i=1;i<=n-1;i++)

 {

   if(a[i]>max)

  {

   max=a[i];

  }

 }

  printf("\nmax = %d\n", max);

  getch();

}

Algorithm

·                     Start

·                     Declare i, a[30], n, max as integer

·                     Write("the number of array")

·                     Read(“the number of array”)

·                     for(i=0;i

·                     Write("the array ")

·                     Read(“a[i]”)

·                     for(i=0;i

·                     Read(“ i, a[i]”)

·                     max=a[0]

·                     for(i=1;i<=n-1;i++)

·                     if(a[i]>max)

·                     max=a[i]

·                     Read(“the maximum array”)

·                     Stop

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PROGRAM-23

// Program of Palindrome

#include

#include

#include

void main()

{

clrscr();

char string[25], revstring[25] = {'\0'};

int i,length=0;int flag=0;

printf("Enter the string\n");

gets(string);

for(i=0;string[i]!='\0';i++)

{

length++;

}

for(i=length-1;i>=0;i--)

{

revstring[length-1] = string[i];

}

{

if(revstring[i]==string[i])

flag=1;

else

flag=0;

}

if(flag==1)

{

printf("%s is not a palindrome\n", string);

}

else

{

printf("%s is a palindrome\n", string);

}

getch();

}

Algorithm

·                     Start

·                     Declare string[25], revstring[25] = {'\0'} as character

·                     Declare i, length=0; flag=0 as integer

·                     Write("the string")

·                     gets(string)

·                     for(i=0;string[i]!='\0';i++)

·                     length++

·                     for(i=length-1;i>=0;i--)

·                     revstring[length-1] = string[i]

·                     if(revstring[i]==string[i])

·                     flag=1

·                     else

·                     flag=0

·                     if(flag==1)

·                     Read(“It is not a palindrome”)

·                     else

·                     Read("It is a palindrome")

·                     Stop

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PROGRAM-22

// Program of struct

#include

#include

void main()

{

clrscr();

char author[20];

  struct MATH_BOOK

  {

    int book_num;

    char auther[20];

    char publish[20];

    float price;

  };

struct MATH_BOOK bkinfo;

printf("Enter the book number\n");

scanf("%d", &bkinfo.book_num);

printf("Enter the name of author\n");

scanf("%s", &author);

printf("Enter the name of publisher\n");

scanf("%s", &bkinfo.publish);

printf("Enter the price of book\n");

scanf("%f", &bkinfo.price);

printf("..............\n");

printf("         MATH_BOOK\n");

printf("..............\n");

printf("Book number  : %d       \n", bkinfo.book_num);

printf("Author       : %s       \n", author);

printf("Publisher    : %s       \n", bkinfo.publish);

printf("price        : rs.%6.2f\n", bkinfo.price);

printf("............. \n");

getch();

}

Algorithm

·                     Start

·                     Declare author[20] as character

·                     struct MATH_BOOK

·                     Declare book_num as integer

·                      Declare publish[20] as character

·                     Decxlare price as float

·                     struct MATH_BOOK bkinfo

·                     Write("the book number")

·                     Read(“book number”)

·                     Write("the name of author")

·                     Read(“the name of author”)

·                     Write("the name of publisher")

·                     Read(“the name of publisher”)

·                     Write(“the price of book”)

·                     Read(“the price of book”)

·                     Write("..............")

·                     Write("         MATH_BOOK")

·                     Write("..............")

·                     Read(“Book number”)

·                     Read("Author")

·                     Read("Publisher ")

·                     Read("price")

·                     Read("............. ")

·                     Stop

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