C PROGRAMMING Solutions - SEE COMPUTER SCIENCE 2081

1) [Formula]Write a program in C language to find simple interest where user need to input Principle, Rate and Time.

Ans:

#include<stdio.h>

#include<conio.h>

void main()

{

float p, t, r, si;

clrscr();

printf("Enter principal: ");

scanf("%f", &p);

printf("Enter time: ");

scanf("%f", &t);

printf("Enter rate: ");

scanf("%f", &r);

si = (p*t*r)/100;

printf("Simple Interest is %f", si);

getch();

}

Write C program to find average number of any three numbers.

Ans:

#include <stdio.h>

#include <conio.h>

void main()  

{

    int a,b,c;

    float avg;

    clrscr();

    printf("Enter first number: ");

    scanf("%d",&a);

    printf("Enter second number: ");

    scanf("%d",&b);

    printf("Enter third number: ");

    scanf("%d",&c);

    avg= (a+b+c)/3;

    printf("Average of three number is %f",avg);

    getch();

}

 Write a C program to find the average of any two numbers given by the user. (HW)

Write C program to find area of a circle. (HW)

2) Write a program in C language that asks a number and check whether it is odd or even.

(Write a program in C language that asks for an integer value and checks whether it is divisible by 2 or not.)

Ans:

#include<stdio.h>

#include<conio.h>

void main()

{

int n;

clrscr();

printf("Enter a number: ");

scanf("%d", &n);

if(n%2==0)

{

printf("Even");

}

else

{

printf("Odd");

}

getch();

}

Write a program in C language that asks for an integer value and checks whether it is divisible by 7 or not.

Ans:

#include<stdio.h>

#include<conio.h>

void main()

{

int n;

clrscr();

printf("Enter any number: ");

scanf("%d", &n);

if(n%7==0)

{

printf("Divisible by 7");

}

else

{

printf("Not divisible by 7");

}

getch();

Write a C program to check whether the given number is divisible by 3 and 5 or not.

#include<stdio.h>

#include<conio.h>

void main()

{

int n;

clrscr();

printf("Enter any number: ");

scanf("%d", &n);

if(n%3==0 && n%5==0)

{

printf("Divisible by 3 and 5");

}

else

{

printf("Not- Divisible by 3 and 5");

}

getch();

}

3) Write a C program that asks a number and check whether it is negative, positive or zero.

#include<stdio.h>

#include<conio.h>

void main()

{

int n;

clrscr();

printf("Enter a number: ");

scanf("%d", &n);

if(n>0)

{

printf("Positive number");

}

else if(n<0)

{

printf("Negative number");

}

else

{

printf("Zero number");

}

getch();

}

 Write a C program that asks a number and check whether it is negative or positive. (HW)

4) Write a program in C language that asks any two numbers and displays the greatest among them.

Ans:

#include<stdio.h>

#include<conio.h>

void main( )

{

int a,b;

clrscr();

printf("Enter 1st number:");

scanf("%d ", &a);

printf("Enter 2nd number:");

scanf("%d ", &b);

if(a>b)

{

printf("The greatest number is %d", a);

}

else

{

printf("The greatest number is %d", b);

}

getch();

}

Write a program in C language that asks any three numbers and displays the greatest among them. (HW)

Write a program in C language that asks any two numbers and displays the smallest among them. (HW)

Write a program in C language that asks any three numbers and displays the smallest among them.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

    int a, b, c;

    clrscr();

printf("Enter 1st number:");

scanf("%d ", &a);

printf("Enter 2nd number:");

scanf("%d ", &b);

printf("Enter 3rd number:");

scanf("%d ", &c);

    if (a < b && a < c)

        {

        printf("The smallest number is %d", a);

        }

    else if (b < a && b < c)

       {

        printf("The smallest number is %d", b);

       }

    else

       {

        printf("The smallest number is %d", c);

       }

    getch();

}

Write a program is C language to check the students whether that are pass or fail, when the pass mark is 45.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

    int m;

    clrscr();

    printf("Enter the marks: ");

    scanf("%d", &m);

    if (m >= 45)

        {

        printf("Pass");

        }

    else

       { 

        printf("Fail");

       }

    getch();

}

Write a C program to enter age and display whether a person can vote or not. (H/W)

                                                                          ‘OR’

5) [Natural number] Write a program in C language to display first 10 natural numbers. (Write a program in C language to display the series:  1, 2, 3, 4 up to 10th terms.)

Ans: 

#include <stdio.h>

#include <conio.h>

void main() 

{

    int i,a=1;

    clrscr();

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

{

    printf("%d",a);

    a=a+1;

}

    getch();

}

Write a program in C language to display the series with their sum:  1, 2, 3, 4 up to 10th terms.

(Write a program in C language to display first 10 natural numbers with their sum.)

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=1,s=0;

clrscr();

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

{

    printf("%d",a);

    s=s+a;

    a=a+1;

}

printf("The sum is %d",s);

    getch();

}

Write a program in C language to display the series: 1, 4, 9, 16.... up to 10th term.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=1;

clrscr();

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

{

    printf("%d",a*a);

    a=a+1;

}

    getch();

}

Write a program in C language to display the series with their sum 1, 4, 9, 16.... up to 10th term.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=1,s=0;

clrscr();

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

{

    printf("%d",a*a);

    s=s+a;

    a=a+1;

}

printf("The sum is %d",s);

    getch();

}

Write a program in C language to display the series with their sum 40, 41, 42, 43…….10th terms.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=40,s=0;

clrscr();

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

{

    printf("%d",a);

    s=s+a;

    a=a+1;

}

    printf("The sum is %d",s);

    getch();

}

6) [Even Number] Write a program in C-language to display the series 2,4, 6, 8 up to the 10th term.

(Write a program in C language to display first 10 even numbers.)

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=2;

clrscr();

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

{

    printf("%d",a);

    a=a+2;

}

    getch();

}

Write a program in C-language to display the series with their sum 2,4, 6, 8 up to the 10th term.

(Write a program in C language to display first 10 even numbers with sum.)

Ans:

#include <stdio.h>

#include <stdio.h>

void main() 

{

int i,a=2,s=0;

clrscr();

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

{

    printf("%d",a);

    s=s+a;

    a=a+2;

}

    printf("The sum is %d",s);

    getch();

}

Write a program in C language to display the series: 2, 16, 36.... up to 10th term.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=2;

clrscr();

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

{

    printf("%d",a*a);

    a=a+2;

}

    getch();

}

Write a program in C language to display the series with their sum 4, 16, 36.... up to 10th term.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=2,s=0;

clrscr();

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

{

    printf("%d",a*a);

    s=s+a;

    a=a+2;

}

printf("The sum is %d",s);

    getch();

}

7) [Odd Number] Write a program in C-language to display the series 1, 3, 5, 7 up to the 10th term.

(Write a program in C language to display first 10 odd numbers.)

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=1;

clrscr();

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

{

    printf("%d",a);

    a=a+2;

}

    getch();

}

Write a C program to print the following series 9,7,5,…1. (HW)

Write a program in C-language to display the series with their sum: 1,3, 5, 7 up to the 10th term.

(Write a program in C language to display first 10 odd numbers with sum.)

Ans:

#include <stdio.h>

#include<conio.h>

void main() 

{

int i,a=1,s=0;

clrscr();

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

{

    printf("%d",a);

    s=s+a;

    a=a+2;

}

printf("The sum is %d",s);

    getch();

}

Write a program in C language to display the series: 1, 9, 25.... up to 10th term.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=1;

clrscr();

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

{

    printf("%d",a*a);

    a=a+2;

}

    getch();

}

Write a program in C language to display the series with their sum 1, 9, 25.... up to 10th term.

Ans:

#include <stdio.h>

#include <conio.h>

void main() 

{

int i,a=1,s=0;

clrscr();

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

{

    printf("%d",a*a);

    s=s+a;

    a=a+2;

}

    printf("The sum is %d",s);

    getch();

}

Only for A+ Students:

1) Write a program in C language to display reverse of an integer input number (multi-digit number).

Ans:

#include<stdio.h>

#include<conio.h>

void main()

{

int n, rev=0, original;

clrscr();

printf("Enter a number: ");

scanf("%d", &n);

original=n;

while(n>0)

{

    rem=n%10;

    rev=s*10+r;

    n=n/10;

}

printf("Reverse of an integer is %d",rev);

getch();

}

Write a program in C language to find whether the given number is palindrome or not.

Ans: 

#include<stdio.h>

#include<conio.h>

void main()

{

int n, rev=0, original;

clrscr();

printf("Enter a number: ");

scanf("%d", &n);

original=n;

while(n>0)

{

    rem=n%10;

    rev=s*10+r;

    n=n/10;

}

printf("Reverse of an integer is %d",rev);

if (original == rev)

        printf("The number is a palindrome.");

else 

        printf("The number is not a palindrome.");

getch();

}

Write a C program to print the sum of digits of a given number. (Write a program in C language to input a multi-digit number and calculate the sum of its individual digits.)

Ans: 

#include<stdio.h>

#include<conio.h>

int main()

{

int n, s, r;

s=0;

printf("Enter any number: ");

scanf("%d", &n);

while(n>0)

{

    r=n%10;

    s=s+r;

    n=n/10;

}

printf("Sum of digits= %d",s);

return 0;

}

2) Write a program in C language to display the odd numbers from 1000 to 500 with their sum.

#include <stdio.h>

#include <conio.h>

void main() 

{

    int a = 999, s = 0;

    clrscr();

    while (a >= 500) 

    {

        printf("%d", a);

        s = s+a;

        a = a-2;

    }

    printf("The sum of odd numbers from 1000 to 500 is %d", s);

    getch();

}

3)    Write a program in C language to input a character and check whether it is vowel or consonant.

Ans: 

#include <stdio.h>

#include <conio.h>

void main() {

    char ch;

    clrscr();

    printf("Enter a character:");

    scanf("%c", &ch);

    if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' ||

        ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U') 

    {

        printf("%c is a vowel", ch);

    } 

    else 

    {

        printf("%c is a consonant", ch);

    }

    getch();

}

4)  Write a program in C language that asks the value of 3 sides of a triangle then check whether triangle is Scalene or not. 

Ans: 

#include <stdio.h>

#include <conio.h>

void main()

{

    int a, b, c;

    clrscr();

    printf("Enter three sides of a triangle: ");

    scanf("%d %d %d", &a, &b, &c);

    if (a != b && b != c && a != c) 

    {

        printf("The triangle is Scalene.");

    } else {

        printf("The triangle is not Scalene.\n");

    }

    getch();

}

2     5) Write a C program to print the series 1,1,2,3,5,8… upto ten terms.(Fibonacci Series)

#include<stdio.h>

#include<conio.h>

void main()

{

int a,b,c,i;

clrscr();

a=1;

b=1;

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

{

    printf("%d \n", a);

    c=a+b;

    a=b;

    b=c;

}

getch();

}

           6) Write a C program to check whether the given number is prime or not.

#include<stdio.h>

#include<conio.h>

void main()

{

int n, i=1, c=0;

clrscr();

printf("Enter any number: ");

scanf("%d", &n);

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

{

   if(n%i==0)

    c=c+1;

}

if(c==2)

    printf("Prime number");

else

    printf("Not-prime number");

getch();

}

7) Write a C program to print the multiplication table of any input number up to tenth terms.

#include<stdio.h>

#include<conio.h>

void main()

{

int n, i=1, c=0;

clrscr();

printf("Enter any number: ");

scanf("%d", &n);

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

{

  c=n*i;

  printf("%d X %d = %d \n", n,i,c);

}

getch();

}

Write a C program to get temperature in Celsius from the user and then print the temperature in fahrenheit. (HW)

Write a C program to calculate distance travelled by a body.  (HW)

Write a C program to convert NC (NEPALI currency) into IC (Indian Currency). (HW)

Write a C program to display middle number among three different numbers.

Ans:

#include<stdio.h>

#include<conio.h>

int main()

{

int a,b,c;

printf("Enter any three numbers:\n ");

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

if((a>b && a<c) || (a<b && a>c))

printf("The middle number is %d", a);

else if((b>a && b<c) || (b<a && b>c))

printf("The middle number is %d", b);

else

printf("The middle number is %d", c);

return 0;

}

Write a C program to check whether the given year is leap year or not.

Ans: 

#include<stdio.h>

#include<conio.h>

int main()

{

int y;

printf("Enter the year: ");

scanf("%d", &y);

if((y%2==0) && (y%100 !=0) || (y%400==0))

printf("%d is leap year", y);

else

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

return 0;

}