Structures in C are used to group together related data of different data types into a single user-defined data type. They provide a way to organize and represent complex data structures in a more manageable way.

OUPUT:

Enter the number of records u wanted to get 3

Enter the name, age and salary

Aadarsh 17 92382

Enter the name, age and salary

Bhagat 17 2872302

Enter the name, age and salary

Vision 17 8293202

Name is Aadarsh

Age is 17

Salary is 92382

Name is Bhagat

Age is 17

Salary is 2872302

Name is Vision

...

A function in C is a block of code that performs a specific task. It is a reusable code module that can be called by other parts of a program. Functions help in modular programming, where complex programs are divided into smaller, simpler parts that can be easily understood and maintained.

OUPUT:

enter two number 4 5

the sum of two numbers is 9

PROGRAMS:

#include<stdio.h>

int sum(int*,int*);

int main()

{

int a,b;

printf("enter two number ");

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

int...

Recursion in C is a process where a function calls itself as a subroutine in order to solve a particular problem. In this process, the function repeats itself with different arguments until a specific termination condition.

OUPUT:

Enter any number 6

factorial is 720

PROGRAMS:

#include<stdio.h>

int fact (int);

int main()

{

int n,f;

printf("Enter any number ");

scanf("%d",&n);

f = fact(n);

printf("factorial is %d",f);

return 0;

}

int fact (int n)

{

if (n<=1)

return 1;

else

...

#include <stdio.h>

struct student {

char name[50];

int rollno;

float percentage;

};

int main() {

struct student s[10];

int i;

printf("Enter details of 10 students:\n");

for (i = 0; i < 10; i++) {

printf("\nStudent %d:\n", i+1);

printf("Name: ");

scanf("%s", s[i].name);

printf("Roll Number: ");

scanf("%d", &s[i].rollno);

printf("Percentage: ");

scanf("%f", &s[i].percentage);

}

// Open the file for writing

FILE *fp;

fp = fopen("students.dat",...

#include <stdio.h>

int main()

{

int a[3][3], b[3][3], c[3][3];

int i, j, k, choice;

printf("Enter the elements of first matrix:\n");

for (i = 0; i < 3; i++) {

for (j = 0; j < 3; j++) {

scanf("%d", &a[i][j]);

}

}

printf("Enter the elements of second matrix:\n");

for (i = 0; i < 3; i++) {

for (j = 0; j < 3; j++) {

scanf("%d", &b[i][j]);

}

}

printf("Enter your choice:\n");

printf("1. Addition\n");

printf("2. Multiplication\n");

...

#include <stdio.h>

int main() {

int a[10], i, j, temp;

printf("Enter 10 numbers:\n");

for (i = 0; i < 10; i++) {

scanf("%d", &a[i]);

}

for (i = 0; i < 9; i++) {

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

if (a[i] > a[j]) {

temp = a[i];

arr[i] = a[j];

a[j] = temp;

}

}

}

printf("Numbers in ascending order:\n");

for (i = 0; i < 10; i++) {

printf("%d ", a[i]);

}

return 0;

}

OUPUT:

Enter any number 6

factorial is 720

PROGRAMS:

#include<stdio.h>

int fact (int);

int main()

{

int n,f;

printf("Enter any number ");

scanf("%d",&n);

f = fact(n);

printf("factorial is %d",f);

return 0;

}

int fact (int n)

{

if (n<=1)

return 1;

else

return (n*fact(n-1));

}

OUPUT:

enter the number 21334

The reverse of number is 43312

PROGRAMS:

#include<stdio.h>

int sum(int);

int main()

{

int n;

printf("enter the number ");

scanf("%d",&n);

int c=sum(n);

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

}

int sum(int n)

{

int r,rev=0;

while(n!=0)

{

r=n%10;

rev=rev*10+r;

n=n/10;

}

return rev;

}

OUPUT:

enter the number 4

The sum of n natural numbers is 10

PROGRAMS:

#include<stdio.h>

int sum(int);

int main()

{

int n;

printf("enter the number ");

scanf("%d",&n);

int c=sum(n);

printf("The sum of n natural numbers is %d ",c);

}

int sum(int n)

{

int d=n*(n+1)/2;

return d;

}

OUPUT:

enter three number 3 4 5

5 is greater than 3 and 4

#include<stdio.h>

void check(int,int,int);

int main()

{

int a,b,c;

printf("enter three number ");

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

check(a,b,c);

}

void check(int a,int b,int c)

{

if(a>b&&a>c)

{

printf("%d is greater than %d and %d",a,b,c);

}else if(b>c&&b>a)

{

printf("%d is greater than %d and %d",b,c,a);

}

else

{

printf("%d is greater than %d and %d",c,a,b);

...

OUTPUT:

enter the number which u want to get multiplication table 3

Multiplication table is

3 * 1 = 3

3 * 2 = 6

3 * 3 = 9

3 * 4 = 12

3 * 5 = 15

3 * 6 = 18

3 * 7 = 21

3 * 8 = 24

3 * 9 = 27

3 * 10 = 30

#include<stdio.h>

void multiply(int);

int main()

{

int n;

printf("enter the number which u want to get multiplication table ");

scanf("%d",&n);

multiply(n);

}

void multiply(int n)

{

int results;

printf("Multiplication table is\n");

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

{

results=n*i;

printf("%d * %d = %d\...

#include<stdio.h>

void check(int);

int main()

{

int n;

printf("enter the number ");

scanf("%d",&n);

check(n);

}

void check(int n)

{

if(n%2==0)

{

printf("%d is even number",n);

}

else{

printf("%d is not even number",n);

}

}

Output:

enter the number 7

7 is not even number

#include<stdio.h>

int main()

{

int a=0;

int b=1;

printf("%d %d ",a,b);

for(int i=0;i<10;i++)

{

int c=a+b;

a=b;

b=c;

printf("%d ",c);

}

}

Output:

0 1 1 2 3 5 8 13 21 34 55 89