add ,substact ,multiply ,divide two numbers using switch statement .

 //add ,substact ,multiply ,divide two numbers using switch statement

#include <stdio.h>

int main (){

    int a,b,ch,c ;

    printf ("enter two number  and ch\n");

    scanf ("%d%i%d",&a,&b,&ch);

   

    switch(ch){

        case 1:c=a+b;

        printf ("%d",c);

        break;

        case 2:c=a-b;

        printf ("%d",c);      

         break;

        case 3:c=a*b;

        printf ("%d",c);

        break;

        case 4:c=a/b;

        printf ("%d",c);

        break;

    }

    return 0;

}

find the lcm of any two numbers in c.

  //find the lcm of any two numbers

 #include <stdio.h>

 int main (){

    int num1,num2,i,hcf,lcm ;

    printf ("enter two numbers :");

    scanf ("%i%i",&num1,&num2);

    for (i=1;i<=num1&&i<=num2;i++){

        if (num1%i==0 && num2%i==0){

            hcf =i;

        }

    }

    lcm=(num1*num2)/hcf ;

    printf ("lcm of %i and %i is %i ",num1,num2,lcm);

    return 0;

 }

find the hcf of any two numbers in c

  //find the hcf of any two numbers

 #include <stdio.h>

 int main (){

    int num1,num2,i,hcf ;

    printf ("enter two numbers :");

    scanf ("%i%i",&num1,&num2);

    for (i=1;i<=num1&&i<=num2;i++){

        if (num1%i==0 && num2%i==0){

            hcf =i;

        }

    }

     

    printf ("hcf of %i and %i is %i ",num1,num2,hcf);

    return 0;

 }

size of integer ,float,character,double data type in c

 //size of integer ,float,character,double data  type

#include <stdio.h>

int main (){

    int i;

    char c ;

    float f ;

    double d ;

    printf ("size of integer is :%ld byte\n ",sizeof (i));

     printf ("size of charecter is :%ld byte\n ",sizeof (c));

      printf ("size of float  is :%ld byte \n",sizeof (f));

       printf ("size of double is :%ld byte\n ",sizeof (d));

       return 0;

}

output output output output output

size of integer is :4 byte size of charecter is :1 byte size of float is :4 byte size of double is :8 byte

print "hallo eworld " without using semi colon (;)

 //print "hallo eworld " without using semi colon (;)

#include <stdio.h>

int main (){

    if (printf ("hallo world "))

    return 0;

}

"print the fibonacchi series using c'' in c

 //print the fibonacchi series using c

#include <stdio.h>

int main (){

    int num1=0,num2=1,num3,i,upto;

    printf ("series will go upto :");

    scanf ("%d",&upto);

    printf ("%d %d ",num1,num2);

    for (i=2;i<upto;i++){

        num3=num1+num2 ;

        printf ("%d ",num3);

        num1=num2;

        num2=num3;

    }

    return 0;

}

OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT

series will go upto :15 0 1 1 2 3 5 8 13 21 34 55 89 144 233 377

"find a year is leap year or not ,using if else statement " in c .

  //find a year is leap year or not, using if else statement

 # include <stdio.h>

 int main (){

    int y;

    printf ("enter the year  :");

    scanf ("%i",&y);

    if (y%4==0){

        if (y%100==0){

            if (y%400==0)

                printf ("%i is a leap year ",y);

                else

                 printf ("%i is  not a leap year ",y);

        }

           

            else printf ("%i is a leap year ",y);

        }

        else printf ("%i is  not a leap year ",y);

        return 0;

    }

 

 

"multiplication table for any integer " in c .

  //multiplication table for any integer

 #include <stdio.h>

 int main (){

    int number ,i;

    printf ("enter the value of an integer :");

    scanf ("%i",&number );

    printf ("the multiplication table of %i is : \n",number );

    for (i=1;i<=10;i++){

        printf ("%i*%i=%i\n",number ,i,number *i);

       

    }

    return 0;

 }

output output output output output

enter the value of an integer :9 the multiplication table of 9 is : 9*1=9 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81 9*10=90

"print the all character from 'A' to 'Z' using for loop" in c

 //print the all character from 'A' to 'Z' using  for loop

#include <stdio.h>

int main (){

    char cr;

for (cr='A';cr<='Z';cr++){

    printf ("%c ",cr);

}

return 0;

}

output output output output output output output output

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 

"find the average of two given numbers " using c .

//find the average of two given numbers

#include <stdio.h>

int main (){

    int num1,num2 ;

    float avr;

    printf ("enter two numbers :");

    scanf ("%i%i",&num1,&num2);

    avr =(float)(num1+num2)/2;

    printf ("the value of average of two  numbers is :%.2f",avr);

    return 0;

}

"find the gretest number between three numbers " in c programming .

 //find the gretest number between three numbers

#include <stdio.h >

int main (){

    int a,b,c;

    printf ("enter three numbers :");

    scanf ("%d%d%d",&a,&b,&c);

    if (a>b && b>c){

        printf ("%d is the gretest number",a);

    }

    else if (b>c&&c>a){

          printf ("%d is the gretest number",b);

    }

    else if (c>a&&a>b){

          printf ("%d is the gretest number",c);

    }

    else {

        printf ("all numbers are equal");

    }

    return 0;

}

"print a star pattern with 9 row and 9 column " in c programming .

 //print a star pattern with 9 row and 9 column

#include <stdio.h>

int main ()

{

    int row ,col;

    for (row=1;row<=9;row++){

        for (col=1;col<=row;col++){

            printf ("*");

        }

        printf ("\n");

    }

    return 0;

}

output output output output output

* ** *** **** ***** ****** ******* ******** *********

"find the reverse number using while loop " using c .

 //find the reverse number using while loop

#include <stdio.h>

int main (){

int num,rem;

printf ("enter the value of number ");

scanf ("%i",&num);

while (num>0){

    rem=num%10;

     

    printf ("%i",rem);

num=num/10;

}

return 0;

}

"find a number positive or negative using if-else statement " in c

 //find a number  positive or negative using if-else statement

#include <stdio.h>

int main (){

    int num;

    printf ("Enter the number :");

    scanf ("%i",&num);

    if (num>0){

        printf ("%i is the positive number ",num);

    }

    else if(num<0) {

        printf ("%i is the negative number ",num);}

else {

    printf ("0 is the neither positive nor negative ");

}

return 0;

}

"programme to check whether a number odd or even using modulo operator " using c

 //programme to check whether a number odd or even using modulo operator

#include <stdio.h>

int main (){

    int num;

    printf ("entr the number :");

    scanf ("%i",&num);

    if (num%2==0){

        printf ("%i is the even number ",num);

    }

    else {

             printf ("%i is the odd number ",num);

    }

    return 0;

}

"find the value of hcf of two numbers " using c

 //find the value of hcf of two numbers

#include <stdio.h>

int main (){

    int n1,n2,hcf ,i;

    printf ("enter the value of two numbers :");

    scanf ("%i%i",&n1,&n2);

    for (i=1;i<=n1||i<=n2;i++){

        if (n1%i==0 && n2%i==0){

            hcf =i;

        }

    }

printf ("the value of hcf of n1 and n2 is %i\n",hcf );

return 0;

}

"create "hi I love you c" programme using c " with output

//create "hi I  love you c" programme  using c 10 times

#include <stdio.h>

int main (){

    int i,n;

printf ("enter the value of n :");

scanf ("%i",&n);

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

    printf ("hi I  love you c\n");

}

return 0;

}

OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT

hi I love you c hi I love you c hi I love you c hi I love you c hi I love you c hi I love you c hi I love you c hi I love you c hi I love you c hi I love you c

"find the factorial of any positive integer using for loop " in c programming .

 //find the factorial of any positive integer using  for loop

#include <stdio.h>

int main (){

    int i,n,fact=1 ;

    printf  ("enter the value of n :");

    scanf ("%i",&n);

    for (i=n;i>=1;i--){

        fact =fact*i;

    }

    printf ("the factorial of n is %i",fact );

    return 0;

}

"find the sum of the series 1^2+3^2+5^2+...+n^2 using for loop" using c .

  //find the sum of the series 1^2+3^2+5^2+...+n^2  using for loop

 //where  n is the positive odd integer

 #include <stdio.h >

 int main ()

 {

    int n,i,sum ;

    printf ("enter any positive odd integer  i.e n :");

    scanf ("%i",&n);

for (i=1;i<=n;i=i+2){

    sum=sum + i*i;

}

printf ("the  sum of the series is :%i",sum);

return 0;

 }

"find the sum of the series 2^2+4^2+6^2+...+n^2 using for loop" in c .

  //find the sum of the series 2^2+4^2+6^2+...+n^2 using for loop

 //where  n is the positive even integer

 #include <stdio.h >

 int main ()

 {

    int n,i,sum ;

    printf ("enter any positive even integer  i.e n :");

    scanf ("%i",&n);

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

    sum=sum + i*i;

}

printf ("the  sum of the series is :%i",sum);

return 0;

 }

"sum of the 1^4+2^4+3^4+...+n^4 using c " by c

 //sum of the 1^4+2^4+3^4+...+n^4 using c

#include <stdio.h>

int main (){

    int i,n,power4;

    printf ("enter the value of n :");

    scanf ("%i",&n);

    for (i=1;i<=n;i++){

        power4=power4 + i*i*i*i;

    }

    printf ("the sum of 1st power4 upto n is : %i",power4);

    return 0;

}

"find the sum of the series 1^3+2^3+3^3+...+n^3 number" using c .

 //find the sum of the series 1^3+2^3+3^3+...+n^3 number

#include <stdio.h >

int main (){

    int n,i,cube ;

    printf ("enter the value of n :");

    scanf ("%i",&n);

    for (i=1;i<=n;i++){

        cube =cube + i*i*i;

    }

    printf ("the sum of cube of 1st n  number is :%d",cube );

    return 0;

}