Introduction of Compiler

Introduction of Compiler

Lec 1 Social Engineering techniques

Lec 1 Social Engineering techniques

Learn C Language Lecture 1 by Harsh Sir

Learn C Language in hindi Lecture 1

Write a C program to find factorial of a given integer k

/* Write a C program to find factorial of a given integer k*/

#include<conio.h>

#include<stdio.h>

fact(int);

void main()

{

int n,factorial;

clrscr();

printf("Enter the number");

scanf("%d",&n);

factorial= fact(n);

printf("Factorial of %d is %d",n,factorial);

getch();

}

fact(int a)

{

int fac=1;

if(a==1)

return(1);

else

{

fac=a*fact(a-1);

return(fac);

}

}

Program to finf factorial of given number using function

/*Program to finf factorial of given number using function*/

#include<conio.h>

#include<stdio.h>

float factorial(float);

void main()

{

clrscr();

float  a;

float fact;

printf("Enter any number :");

scanf("%f",&a);

fact=factorial(a);

printf("factoral=%f",fact);

getch();

}

float factorial(float x)

{

float f=1;

for(int i=1;i<=x;i++)

f=f*i;

return(f);

}

function with arguments with return value

/*function with   arguments  with return value*/

#include<conio.h>

#include<stdio.h>

calsum(int ,int,int);

void main()

{

int a,b,c,sum;

printf("\nEnter any three number");

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

sum=calsum(a,b,c);

printf("\n Sum=%d",sum);

getch();

}

calsum(int x,int y,int z)

{

int d;

d=x+y+z;

return(d);

}

function without parameters and without return type

/*function without parameters and without return type*/

#include<conio.h>

#include<stdio.h>

italy();

brazil();

argentina();

void main()

{

clrscr();

printf("I am in main\n");

italy();

brazil();

argentina();

getch();

}

italy()

{

printf("I am in italy\n");

}

brazil()

{

printf("I am in brazil\n");

}

argentina()

{

printf("I am in argentina\n");

}

Program to print pyramid * * * * * * * * * *

/*Program to print pyramid

          *

        *   *

       *    *    *

    *     *    *    *

*/

#include<conio.h>

#include<stdio.h>

void main()

{

int i,j;

clrscr();

for(i=1;i<=5;i++)

{

               for(j=5;j>i;j--)

              {

                 printf("  ");

               }

               for(int k=1;k<=i;k++)

               {

                 printf(" *  ");

                }

       printf("\n");

 }

getch();

}

Program to print pyramid of star * * * * * * * * * *

/*Program to print pyramid of star

*

* *

* * *

* * * *

*/

#include<conio.h>

#include<stdio.h>

void main()

{

int i,j;

clrscr();

for(i=1;i<=5;i++)

{

printf("");

for(j=1;j<=i;j++)

 {

 printf(" * ");

 }

 printf("\n");

}

 getch();

}

Program to print pyramid 1 2 2 3 3 3 4 4 4 4

/*Program to print pyramid

1

2 2

3 3 3

4 4 4 4 */

#include<conio.h>

#include<stdio.h>

void main()

{

int i,j;

clrscr();

       for(i=1;i<=5;i++)

{

  printf("");

 for(j=1;j<=i;j++)

              {

 printf(" %d ",i);

 }

 printf("\n");

}

getch();

}

Program to print pyramid 1 1 2 1 2 3 1 2 3 4

/*Program to print pyramid

1

1 2

1 2 3

1 2 3 4 */

#include<conio.h>

#include<stdio.h>

void main()

{

int i,j;

clrscr();

for(i=1;i<=5;i++)

{

              printf("");

 for(j=1;j<=i;j++)

              {

                     printf(" %d ",j);

 }

            printf("\n");

}

getch();

}

Program to convert decimal number into binary number

/*Program to convert decimal number  into binary number*/

#include<conio.h>

#include<stdio.h>

#include<math.h>

void main()

{

int n,i,r,sum=0,x=1;

clrscr();

printf("Enter binary number:");

scanf("%d",&n);

while(n>0)

{

  r=n%2;

        sum=sum+r*x;

        n=n/2;

       x=x*10;

}

printf("dacimal number:%d",sum);

getch();

}

Program to convert binary number into dacimal number

/*Program to convert binary number  into dacimal number*/

#include<conio.h>

#include<stdio.h>

#include<math.h>

void main()

{

       int n,i,r,sum=0,x=0;

clrscr();

printf("Enter binary number:");

scanf("%d",&n);

while(n>0)

{

  r=n%10;

  sum=sum+r*pow(2,x);

  n=n/10;

  x++;

}

printf("dacimal number:%d",sum);

getch();

}

Program to find series of prime number

/*Program to find series of prime number*/

#include<conio.h>

#include<stdio.h>

void main()

{

int prime=0,n,i;

clrscr();

printf("Enter number of terms :");

scanf("%d",&n);

for(i=2;i<=n;i++)

{

prime=0;

for(int j=2;j<i;j++)

{

               if(i%j==0)

                     {

  prime=1;

                      break;

  }

}

if(prime==0)

       printf("%d",i);

       }

getch();

}

Program to find enter number prime or not

/*Program to find enter number prime or not*/

#include<conio.h>

#include<stdio.h>

void main()

{

int prime=0,n,i=2;

clrscr();

printf("Enter any number :");

scanf("%d",&n);

while(i<n)

{

  if(n%i==0)

  {

  prime=1;

               break;

  }

  i++;

}

if(prime==0)

printf("prime number");

else

printf("is not a prime number");

getch();

}

Program to display fabonacci series

/*Program to display fabonacci series*/

#include<conio.h>

#include<stdio.h>

void main()

{

int n1=0,n2=1,sum=0,n;

clrscr();

printf("Enter number of terms:");

scanf("%d",&n);

printf("fabonacci series of %d,%d are",n1,n2);

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

{

        sum=n1+n2;

       printf("%d",n1);

        n1=n2;

        n2=sum;

}

getch();

}

Program to find whether is multiple of 7 up to 100

/*Program to find whether is multiple of 7 up to 100*/

#include<conio.h>

#include<stdio.h>

void main()

{

int n;

clrscr();

printf("Enter number of terms:");

scanf("%d",&n);

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

{

if(i%7==0)

printf("%d ",i);

}

getch();

}

/*Program to find table of a given number*/

#include<conio.h>

#include<stdio.h>

void main()

{

int n,s;

clrscr();

printf("Enter any number :");

scanf("%d",&n);

for(int i=1;i<=10;i++)

{

s=i*n;

printf("%d x %d=%d\n",n,i,s);

}

getch();

}

Program to find image(reverse)of a number

/*Program to find image(reverse)of a number */

#include<conio.h>

#include<stdio.h>

void main()

{

int sum=0,n,x=1,r;

clrscr();

printf("Enter any number:");

scanf("%d",&n);

while(n>0)

{

r=n%10;

sum=sum*10+r;

n=n/10;

}

printf("reverse number:%d",sum);

getch();

}

Program to find enter number Armstrong or not

/*Program to find enter number Armstrong or not*/

#include<conio.h>

#include<stdio.h>

void main()

{

int sum=0,n,x,r;

clrscr();

printf("Enter any number:");

scanf("%d",&n);

x=n;

while(n>0)

{

r=n%10;

sum=sum+r*r*r;

n=n/10;

}

if(sum==x)

printf("Armstrong number");

else

printf("is not a armstrong number");

getch();

}

Program to find sum of series 1-x/1!+x*x/2!-.....-x*n/n!

/*Program to find sum of series 1-x/1!+x*x/2!-.....-x*n/n!*/

#include<conio.h>

#include<stdio.h>

void main()

{

int i,sum=0,n,j=1,x,power=1,fact=1,sign=1;

clrscr();

printf("Enter number of terms in series:");

scanf("%d",&n);

printf("Enter value of x:");

scanf("%d",&x);

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

{

 power=power*x;

 fact=fact*i;

 sum=sum+sign*power/fact;

 sign=(-1)*sign;

}

printf("sum of series =%d",sum);

getch();

}

Program to find sum of series1+x/1!+x*x/2!.....+x*n/n!

/*Program to find sum of series1+x/1!+x*x/2!.....+x*n/n!*/

#include<conio.h>

#include<stdio.h>

void main()

{

int i,sum=0,n,j=1,x,power=1,fact=1;

clrscr();

printf("Enter number of terms in series:");

scanf("%d",&n);

printf("Enter value of x:");

scanf("%d",&x);

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

 {

                power=power*x;

         fact=fact*i;

         sum=sum+power/fact;

        }

printf("sum of series =%d",sum);

getch();

}

Program to find sum of series 1+3+5+.....+nc

/*Program to find sum of series 1+3+5+.....+n*/

#include<conio.h>

#include<stdio.h>

void main()

{

int i,sum=0,n,j=1;

clrscr();

printf("Enter number of terms in series:");

scanf("%d",&n);

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

{

 sum=sum+j;

 j=j+2;

}

printf("sum of series =%d",sum);

getch();

}

/

Program to find sum of series 1+2+3+.....+n

/*Program to find sum of series 1+2+3+.....+n*/

#include<conio.h>

#include<stdio.h>

void main()

{

Int  i,sum=0,n;

clrscr();

printf("Enter number of terms in series:");

scanf("%d",&n);

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

{

 sum=sum+i;

}

printf("sum of series =%d",sum);

getch();

}

Program to find factorial of a given number

/*Program to find factorial of a given number*/

#include<conio.h>

#include<stdio.h>

void main()

{

int i=1,fact=1,n;

clrscr();

printf("Enter any number");

scanf("%d",&n);

while(i<=n)

{

fact=fact*i;

i++;

}

printf("factorial =%d",fact);

getch();

}

Program to display from 1 to 10

/*Program to display from 1 to 10*/

#include<conio.h>

#include<stdio.h>

void main()

{

int i=1;

clrscr();

while(i<=10)

{

printf("%d\n",i);

i++;

}

getch();

}

Program to convert tempreture in ferenite to celcius or celcius to ferenite

/*Program to convert tempreture in ferenite to celcius or celcius to ferenite*/

void main()

{

float f,c;

char ch;

clrscr();

printf("enter intial scale f or c :");

scanf("%c",&ch);

switch(ch)

{

case 'c':

case 'C':

printf("enter temp in %c",ch);

scanf("%f",&c);

f=9*c/5+32;

printf("temp in f=%f",f);

break;

case 'f':

case 'F':

printf("enter temp in %c :",ch);

scanf("%f",&f);

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

printf("temp in c=%f",c);

break;

default:

printf("invalid choice of scale");

}

getch();

}