My _Programs

1. Program to add two numbers

#include<stdio.h>
int main()
{
int a,b,sum;
printf("enter two numbers:");
scanf("%d %d",&a,&b);
sum=a+b;
printf("%d",sum);
return 0;
}

2. Program to find average of n numbers

#include<stdio.h>
int main()
{
int i ,n ,sum=0,value;
float avg;

printf("Number of n Integers:");
scanf("%d",&n);
printf("Enter %d number",n);
for(i=1;i<=n;i++)
{
scanf("%d",&value);
sum= sum+value;
}

printf("Sum of any number = %d",sum);
avg = sum/n;
printf("Average = %f",avg);
return 0;
}

3. Program to print weekdays using switch statement

#include<stdio.h>
int main()
{
int code;
printf("Enter Weekdays In Number :");
scanf("%d",&code);
if(code==1)
printf("Monday");
else if (code==2)
printf("Tuesday");
else if(code==3)
printf("Wednesday");
else if(code==4)
printf("Thursday");
else if(code==5)
printf("Friday");
else if(code==6)
printf("Saturday");
else if(code==7)
printf("Sunday");
else
printf("Invalid Output");
return 0;
}

4. Program to find whether the number is even or odd

#include<stdio.h>
int main()
{ int a,b;
printf("Enter A Number :");
scanf("%d",&a);
if (a%2==0)
printf(" a is even ");
else
printf(" b is odd ");
return 0;
}

5. Program to print the table using loop

#include<stdio.h>
int main()
{
int i,n,d;
printf("enter number:");
scanf("%d",&d);
for(i=1;i<=20;i++)
{
n=d*i;
printf("%d X %d = %d\n",d,i,n);
}
return 0;
}

6. Program to find whether the number is armstrong or not

#include<stdio.h>
int main()
{
int sum=0,number;
int remainder,temp;
printf("Enter Any Positive Number :");

scanf("%d",&number);
temp=number;
while(temp!=0)
{
remainder=temp%10;
sum=sum+remainder * remainder * remainder;
temp/=10;
}
if(sum==number)
printf("Armstrong Number\n");
else
printf("Not an Armstrong number\n");
return 0;
}

7. Program to print a calculator using puts

#include <stdio.h>
int main()
{
puts(" _______________ \n");
puts("||\n");
puts("| 1 | 2 | 3 | |\n");
puts("|||| |\n");
puts("| 4 | 5 | 6 | + |\n");
puts("|||||\n");
puts("| 7 | 8 | 9 | - |\n");
puts("|||||\n");
puts("| 0 | * |\n");
puts("|________||\n");
}

8. Program for bubble short

#include<stdio.h>
int main()
{
int a[20],i,n,k,temp;
printf("\n enter size of array:");
scanf("%d",&n);
printf("\n enter %d elements of array \n",n);
for(i=0;i<n;i++)
scanf("%d",&a[i]);
for(k=0;k<n-1;k++)
{

for(i=0;i<n-k-1;i++)
{
if(a[i]>a[i+1])
{
temp=a[i];
a[i]=a[i+1];
a[i+1]=temp;
}
}
}
printf("\n array of elements after sorting\n");
for(i=0;i<n;i++)
{
printf("%d",a[i]);
printf("\n");
}
return 0;
}

9. Program for binary search

#include<stdio.h>
int main()
{
int i,low,high,mid,n,key,array[100];
printf("Enter number of elements n");
scanf("%d",&n);
printf("Enter %d integers\n",n);

for(i=0;i<n;i++)
scanf("%d",&array[i]);
printf("Enter value to find n");
scanf("%d",&key);
low=0;
high=n-1;
mid=(low+high)/2;
while(low<=high)
{
if(array[mid]<key)
low=mid+1;
else if(array[mid]==key)
{
printf("%d found at location %d.n",key,mid+1);
break;
}

else

high=mid-1;
mid=(low+high)/2;
}

if(low>high)
printf("Not found! %d is not present in the list.n",n,key);
return 0;
}

10. Program for a factorial of number

#include<stdio.h>
int main()
{
int i,a,factorial = 1;
printf("enter a positive number for which you want factorial : ");
scanf("%d",&a);
for(i=a;i>=1;i--)
{
factorial = factorial * i;
}
printf("factorial of %d is %d\n",a,factorial);
return 0;
}

11. Program for fizzbuzz

#include<stdio.h>
int main()
{
int i;
for(i=1;i<=50;i++)

if(i%3==0 && i%5==0)
printf("FizzBuzz\n");

else if(i%3==0)
printf("Fizz\n");
else if(i%5==0)
printf("Buzz\n");
else
printf("%d\n",i);
return 0;
}

12 . #### Program for sum of first 100 number

#include<stdio.h>
int main()
{
int sum=0,number;
number=1;
while(number<=100)
{
sum+=number;
number++;
}
printf("sum of first 100 postive integer number=%d\n",sum);
return 0;
}

13. Program to find greater of two numbers

#include<stdio.h>
int main()
{
int a,b;
printf("Enter Any 2 Number :");
scanf("%d%d",&a,&b);
if(a>b)
{
printf("a is greater ");
}
else
{
printf("b is greater ");
}
return 0;
}

14. Program to find greater of 3 numbers

#include<stdio.h>
void main()
{
int a,b,c;
printf("enter the three numbers which you want to compare \n");
scanf("%d%d%d",&a,&b,&c);
if(a>b&&a>c)
printf("\n%d is the greatest number\n",a);
else if(b>a&&b>c)
printf("\n%d is the greatest number\n",b);
else
printf("\n%d is the greatest number\n",c);
}

15. Program to find gcd of numbers

#include<stdio.h>
int main()
{
int m,n,r=1;
printf("\nEnter Value For m,n");
scanf("%d,%d",&m,&n);
while(r!=0)
{
r=n%m;
n=m;
m=r;
}
printf("\nGCD=%d\n",n);
return 0;
}

16. Program to find whether the year is leap year or not

#include<stdio.h>
int main()
{
int year;
printf("Enter any year: ");
scanf("%d",&year);
if(year%4==0)
printf("%d is a leap year",year);
else
printf("%d is not a leap year",year);
return 0;
}

17. Program for linear search

#include<stdio.h>
int main()
{
int a[100],search,c,n;
printf("Enter no of element in array\n");
scanf("%d",&n);
printf("Enter %d integer\n",n);
for(c=0;c<n;c++)
scanf("%d",&a[c]);
printf("Enter A Number To Search\n");
scanf("%d",&search);
for(c=0;c<n;c++)
{
if(a[c]==search)
{
printf("%d is present at %d location",search,c+1);
break;
}
}
if(c==n)
printf("%d Is Not Present At Location\n",search);
return 0;
}

18. Program for matrix addition

#include<stdio.h>
int main()
{
int A[10][10], B[10][10], sum[10][10];
int n,m,i,j;
printf("Enter Size Of Matrix a as m,n:");
scanf("%d%d",&m,&n);
printf("\nEnter Element Of Matrix A \n");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
scanf("\n%d",&A[i][j]);
}
}
printf("\nEnter Element Of Matrix B \n");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
scanf("\n%d",&B[i][j]);
}
}
printf("\n Sum of Two Matrix\n");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
sum[i][j]=A[i][j]+B[i][j];
printf("%d\t",sum[i][j]);
}
printf("\n");
}
return 0;
}

19. Program for transpose of matrix

#include<stdio.h>
int main()
{
int a[10][10], b[10][10];
int n,m,i,j;
printf("Enter Size Of Matrix a as m,n:");
scanf("%d%d",&m,&n);
printf("\nEnter Element Of Matrix A Row Wise \n",m,n);
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
scanf("%d",&a[i][j]);
}
}
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
b[j][i]=a[i][j];
}
}
printf("\n Tranpose is \n\n");
for(i=0;i<n;i++)
{
for(j=0;j<m;j++)
{
printf("%d ",b[i][j]);
}
printf("\n");

}
}

20. Program to find the sum of digits of a number

#include<stdio.h>
int main()
{
int digit, temp, num,sum=0;
printf("Enter any number: ");
scanf("%d",&num);

temp=num;
while(temp>0)
{
digit=temp%10;
sum= sum+digit;
temp=temp/10;
}
printf("\nSum of digits of %d= %d\n",num,sum);
return 0;
}

21. Program to check whether the number is palindrome number or not

#include<stdio.h>
int main()
{
int sum=0,digit;
int number,temp;
printf("\nEnter Any Positive Number :");
scanf("%d",&number);
temp=number;
while(temp>0)
{
digit=temp%10;
temp/=10;
sum=sum*10+digit;
}
if(number==sum)
printf("\n%d is Palindrome Number\n",number);
else
printf("\n%d Is Not A Palindrome Number\n",number);
return 0;
}

22. program to swap two numbers by call by value method

#include<stdio.h>
void swap(int a,int b)
void main()
{
int x,y;
printf("enter value for x : ");
scanf("%d",&x);
printf("enter value for y : ");
scanf("%d",&y);
printf("\nbefore calling swap function\n");
printf("value of x = %d, value of y = %d",x,y);
swap(x,y);
printf("\n after returning from swap function");
printf("\n value of x = %d and value of y = %d",x,y);

}
void swap(int a, int b)
{
int temp;
printf("\ninside the function value of a = %d and value of b = %d before swap\n",a,b);
temp = a;
a = b;
b = temp;
printf("value of a = %d and value of b = %d",a,b);

}

23. Program to swap two numbers by call by reference method

#include<stdio.h>
void swap(int*, int*);
void main()
{
int x,y;
printf("\nEnter the value of x: ");
scanf("%d",&x);
printf("\nEnter the value of y: "); scanf("%d",&y);
printf("\nBefore calling swap function\n");
printf("\nValue of x=%d, value of y=%d\n",x,y);
swap(&x,&y);
printf("\nAfter returning from swap function");
printf("\nValue of x=%d, Value of y=%d",x,y);
}
void swap(int *a, int *b)

{
int temp;
printf("\nInside the function");
printf("\nValue of *a=%d, Value of *b=%d Before swap\n",*a,*b);
temp=*a;
*a = *b;
*b = temp;
printf("\nValue of *a=%d, Value of *b= %d after swap\n",*a, *b);
}

24. Program to enter the details of employees using structure

#include<stdio.h>
#include<string.h>
struct employe
{
int code;
char name[30];
char department[50];
float salary;
};
void main()
{
struct employe employee;
printf("Enter Employee Code:\n");
scanf("%d",&employee.code);
printf("Enter Employee's Name:");
scanf("%[^\n]%*c",employee.name);
printf("Enter Employee's Department:");
scanf("%[^\n]%*c",employee.department);
printf("Enter Employee's salary:\n");
scanf("%f",&employee.salary);
printf("\n\n Particulars of Employee:");
printf("\n Employee's code:%d",employee.code);
printf("\n Employee's Name:%s",employee.name);
printf("\n Employee's Department:%s",employee.department);
printf("\n Employee's Salary:%f",employee.salary);
}

25. Program to find the product of fractions using structure

#include <stdio.h>
struct product
{
int numerator, denominator;
};
void main()
{
struct product V1,V2,V3;
printf("Enter the numerator of first fraction: ");
scanf("%d",&V1.numerator);
printf("Enter the denominator of first fraction: ");
scanf("%d",&V1.denominator);
printf("Enter the numerator of second fraction: ");
scanf("%d",&V2.numerator);
printf("Enter the denominator of secondfraction: ");
scanf("%d",&V2.denominator);

V3.numerator = V1.numerator * V2.numerator;
V3.denominator = V1.denominator * V2.denominator;
printf("Product= %d/%d",V3.numerator, V3.denominator);

}