C important pro

C Program to Multiply given Number by 4 using Bitwise Operators

 

#include 

#include

void main()

{

    long number, tempnum;

    clrscr();

    printf("Enter an integer \n");

    scanf("%ld", &number);

    tempnum = number;

    number = number << 2;

    printf("%ld x 4 = %ld\n", tempnum, number);

    getch();

}

Output

Enter an integer

450

450 x 4 = 1800

C Program to Find the Sum of first 50 Natural Numbers using for Loop

#include 

#include

void main()

{

    int  num, sum = 0;

    for (num = 1; num <= 50; num++)

    {

        sum = sum + num;

    }

    printf("Sum = %4d\n", sum);

    getch();

}

Output

Sum = 1275

C Program to accept two Integers and Check if they are Equal

#include 

#include

void main()

{

    int m, n;

    clrscr();

    printf("Enter the values for M and N\n");

    scanf("%d %d", &m, &n);

    if (m == n)

        printf("M and N are equal\n");

    else

        printf("M and N are not equal\n");

    getch();

}

Output

Enter the values for M and N

3 3

M and N are equal

C Program to Accept the Height of a Person & Categorize as Taller, Dwarf & Average

#include 

#include

void main()

{

float height;

clrscr();

printf("Enter  the Height (in centimetres) \n");

scanf("%f", &height);

if (height < 150.0)

printf("Dwarf \n");

else if ((height >= 150.0) && (height <= 165.0))

printf(" Average Height \n");

else if ((height >= 165.0) && (height <= 195.0))

printf("Taller \n");

else

printf("Abnormal height \n");

getch();

}

Output

Enter  the Height (in centimetres)

190

Taller

C Program to Read a Grade & Display the Equivalent Description

#include 

#include

#include 

#include 

void main()

{

    char remark[15];

    char grade;

    printf("Enter the grade \n");

    scanf("%c", &grade);

    grade = toupper(grade);

    switch(grade)

    {

    case 's':

        strcpy(remark, " Super");

        break;

    case 'a':

        strcpy(remark, " Very good");

        break;

    case 'b':

        strcpy(remark, " Fair");

        break;

    case 'y':

        strcpy(remark, " Absent");

        break;

    case 'f':

        strcpy(remark, " Fails");

        break;

    default :

        strcpy(remark, "Error in grade \n");

        break;

    }

    printf("Result  : %s\n", remark);

    getch();

}

Output

Enter the grade

s

Result:  Super

C Program to Compute the Sum of Digits in a given Integer

#include 

#include

void main()

{

    long num, temp, digit, sum = 0;

    printf("Enter the number \n");

    scanf("%ld", &num);

    temp = num;

    while (num > 0)

    {

        digit = num % 10;

        sum  = sum + digit;

        num /= 10;

    }

    printf("Given number = %ld\n", temp);

    printf("Sum of the digits %ld = %ld\n", temp, sum);

    getch();

}

Output

Enter the number

300

Given number = 300

Sum of the digits 300 = 3