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ESC-18104/18105 Programming for Problem Solving

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Name - Hirdya Sharma Branch - C.S.E Section - C1 Roll Number - 1915319

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1. To print name using puts.

  include<stdio.h> 
    int main() 
 { 
    puts("My Name is Hirdya Sharma");
    return 0; 
 }

Output:

2. To print College address

#include<stdio.h> 
int main() 
{ 
    puts("Guru Nanak Dev Engineering College,");
    puts("Gill Road,");
    puts("Ludhiana,Punjab,");
    return 0; 
}

Output:

3. Program to add two integers .

     #include<stdio.h>
	.	int main()
	{
	   int a, b, c;
	   
	   printf("Enter two numbers to add\n");
	   scanf("%d%d", &a, &b);
	   
	   c = a + b;
	   
	   printf("Sum of the numbers = %d\n", c);
	   
	   return 0;
	}

Output:

4. Program to find quotient and remainder.

#include <stdio.h>
 
     int main()
      {
           int dividend, divisor, quotient, remainder;
    printf("Enter dividend: ");
    scanf("%d", &dividend);
    printf("Enter divisor: ");
    scanf("%d", &divisor);
    
     quotient = dividend / divisor;
   
     remainder = dividend % divisor;
     printf("Quotient = %d\n", quotient);
      printf("Remainder = %d\n", remainder);
     return 0;
     }

Output:

5. Program to swap two variables without 3rd variable.

#include<stdio.h>  
     int main()    
     {       
    int a=10, b=20;      
     printf("Before swap a=%d b=%d\n",a,b);      
     a=a+b;//a=30 (10+20)    
      b=a-b;//b=10 (30-20)    
      a=a-b;//a=20 (30-10)    
     printf("After swap a=%d b=%d\n
",a,b);    
    return 0;  
    }   

Output:

6. Program to check even odd number.

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

Output:

7. Finding greatest of two numbers.

#include <stdio.h>  
   
int main() {  
    int a, b;  
    printf("Please Enter Two different values\n");  
    scanf("%d %d", &a, &b);  
    
    if(a > b) 
    {
        printf("%d is Largest\n", a);          
    } 
    else if (b > a)
    { 
        printf("%d is Largest\n", b);  
    } 
    else 
    {
	printf("Both are Equal\n");
    }
   
    return 0;  
}

Output:

8. Find greatest of three number .

#include <stdio.h>
int main()
{
    double n1, n2, n3;
    printf("Enter three different numbers: ");
    scanf("%lf %lf %lf", &n1, &n2, &n3);
    if( n1>=n2 && n1>=n3 )
        printf("%.2f is the largest number.\n", n1);
    if( n2>=n1 && n2>=n3 )
        printf("%.2f is the largest number.\n", n2);
    if( n3>=n1 && n3>=n2 )
        printf("%.2f is the largest number.\n", n3);
    return 0;
}

Output:

9. Program to assign grade to student according to percentage.

#include<stdio.h>
void main()
{
    int marks;
    printf("Enter your marks ");
    scanf("%d",&marks);
    if(marks<0 || marks>100)
    {
        printf("Wrong Entry");
    }
    else if(marks<50)
    {
        printf("Grade F");
    }
    else if(marks>=50 && marks<60)
    {
        printf("Grade D");
    }
    else if(marks>=60 && marks<70)
    {
        printf("Grade C");
    }
    else if(marks>=70 && marks<80)
    {
        printf("Grade B");
    }
    else if(marks>=80 && marks<90)
    {
        printf("Grade A");
    }
    else
    {
        printf("Grade A+");
    }
}

Output:

10. Program to print roots of quadratic equation.

#include <stdio.h>
#include <math.h>
int main()
{
    double a, b, c, discriminant, root1, root2, realPart, imaginaryPart;
    printf("Enter coefficients a, b and c: ");
    scanf("%lf %lf %lf",&a, &b, &c);
    discriminant = b*b-4*a*c;
    if (discriminant > 0)
    {
        root1 = (-b+sqrt(discriminant))/(2*a);
        root2 = (-b-sqrt(discriminant))/(2*a);
        printf("root1 = %.2lf and root2 = %.2lf",root1 , root2);
    }
    else if (discriminant == 0)
    {
        root1 = root2 = -b/(2*a);
        printf("root1 = root2 = %.2lf;", root1);
    }
    else
    {
        realPart = -b/(2*a);
        imaginaryPart = sqrt(-discriminant)/(2*a);
        printf("root1 = %.2lf+%.2lfi and root2 = %.2f-%.2fi", realPart, imaginaryPart, realPart, imaginaryPart);
    }
    return 0;
}   

Output:

11. Program to check year is leap or not.

#include <stdio.h>
int main()
{
    int year;
    printf("Enter a year: ");
    scanf("%d",&year);
    if(year%4 == 0)
    {
        if( year%100 == 0)
        {
            if ( year%400 == 0)
                printf("%d is a leap year.", year);
            else
                printf("%d is not a leap year.", year);
        }
        else
            printf("%d is a leap year.", year );
    }
    else
        printf("%d is not a leap year.", year);
    
    return 0;
}

Output:

12. Program to print table of 5.

#include <stdio.h>
int main()
{
    int n=5 , i;
    printf("Multiplcation table of 5\n");
    for(i=1; i<=10; ++i)
    {
        printf("%d * %d = %d \n", n, i, n*i);
    }
    
    return 0;
}

Output:

13. To make simple calculator using switch case.

#include <stdio.h>
int main() {
    char operator;
    double firstNumber,secondNumber;
    printf("Enter an operator (+, -, *,): ");
    scanf("%c", &operator);
    printf("Enter two operands: ");
    scanf("%lf %lf",&firstNumber, &secondNumber);
    switch(operator)
    {
        case '+':
            printf("%.1lf + %.1lf = %.1lf",firstNumber, secondNumber, firstNumber + secondNumber);
            break;
        case '-':
            printf("%.1lf - %.1lf = %.1lf",firstNumber, secondNumber, firstNumber - secondNumber);
            break;
        case '*':
            printf("%.1lf * %.1lf = %.1lf",firstNumber, secondNumber, firstNumber * secondNumber);
            break;
        case '/':
            printf("%.1lf / %.1lf = %.1lf",firstNumber, secondNumber, firstNumber / secondNumber);
            break;
        default:
            printf("Error! operator is not correct");
    }
    
    return 0;
}

Output:

14. To calculate reverse of a number.

#include <stdio.h>
 
int main()
{
  int n, reverse = 0;
 
  printf("Enter a number to reverse\n");
  scanf("%d", &n);
 
  while (n != 0)
  {
    reverse = reverse * 10;
    reverse = reverse + n%10;
    n = n/10;
  }
 
  printf("Reverse of entered number is = %d\n", reverse);
 
  return 0;
}

Output:

15. To check whether number is palindrome or not.

#include <stdio.h>
 
int main()
{
  int n, r = 0, t;
 
  printf("Enter a number to check if it is a palindrome or not\n");
  scanf("%d", &n);
 
  t = n;
 
  while (t != 0)
  {
    r = r * 10;
    r = r + t%10;
    t = t/10;
  }
 
  if (n == r)
    printf("%d is a palindrome number.\n", n);
  else
    printf("%d isn't a palindrome number.\n", n);
 
  return 0 ;
}

Output:

16. To check whether a number is prime or not.

#include <stdio.h>
int main()
{
   int i, num, p = 0;
   printf("Please enter a number: \n");
   scanf("%d", &num);
   for(i=1; i<=num; i++)
   {
      if(num%i==0)
      {
         p++;
      }
   }
   if(p==2)
   {
      printf("Entered number is %d "\
             "and it is a prime number.",num);
   }
   else
   {
      printf("Entered number is %d "\
             "and it is not a prime number.",num);
   }
}

Output:

17. Program to Print Prime Numbers between 1 to 100 using For Loop

#include <stdio.h>
 
int main()
{
  int i, Number, count; 
  
  printf(" Prime Number from 1 to 100 are: \n"); 
  for(Number = 1; Number <= 100; Number++)
  {
    count = 0;
    for (i = 2; i <= Number/2; i++)
    {
  	if(Number%i == 0)
  	{
     	  count++;
  	  break;
	}
    }
    if(count == 0 && Number != 1 )
    {
	printf(" %d ", Number);
    }  
  }
  return 0;
}

Output:

18. Program to check whether a number is armstrong or not.

#include<stdio.h>  
 int main()    
{    
int n,r,sum=0,temp;    
printf("enter the number=");    
scanf("%d",&n);    
temp=n;    
while(n>0)    
{    
r=n%10;    
sum=sum+(r*r*r);    
n=n/10;    
}
if(temp==sum)
printf("armstrong  number\n");    
else    
printf("not armstrong number\n");    
return 0;  
} 

Output:

19. Print Different Patterns.

a.Pattern 1

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

Output:

b. Pattern 2

#include <stdio.h>
 
int main()
{
  int n, i,  c, a = 1;
 
  printf("Enter the number of rows:");
  scanf("%d", &n);
 
  for (i = 1; i <= n; i++)
  {
    for (c = 1; c <= i; c++)
    {
      printf("%d ",a);
      a++;
    }
    printf("\n");
  }
 
  return 0;
}

Output:

c. Pattern 3

#include <stdio.h>
int main()
{
    int i, space, rows, k=0, count = 0, count1 = 0;
    printf("Enter number of rows: ");
    scanf("%d",&rows);
    for(i=1; i<=rows; ++i)
    {
        for(space=1; space <= rows-i; ++space)
        {
            printf("  ");
            ++count;
        }
        while(k != 2*i-1)
        {
            if (count <= rows-1)
            {
                printf("%d ", i+k);
                ++count;
            }
            else
            {
                ++count1;
                printf("%d ", (i+k-2*count1));
            }
            ++k;
        }
        count1 = count = k = 0;
        printf("\n");
    }
    return 0;
}

Output:

20. Program to find largest from 1 dimensional array.

#include <stdio.h>
 
int main()
{
 
        int array[50], size, i, largest;
 
        printf("Enter the size of the array: ");
	scanf("%d", &size);
 
        printf("Enter %d elements of  the array: ", size);
 
        for (i = 0; i < size; i++)
		scanf("%d", &array[i]);
 
        largest = array[0];
 
        for (i = 1; i < size; i++) 
        {
		if (largest < array[i])
			largest = array[i];
	}
 
        printf("Largest element present in the given array is : %d\n", largest);
 
        return 0;
 
}

Output:

21. To find sum of the N natural numbers in an array.

#include <stdio.h>
 
void main()
{
    int i, num, sum = 0;
 
    printf("Enter an integer number \n");
    scanf ("%d", &num);
    for (i = 1; i <= num; i++)
    {
        sum = sum + i;
    }
    printf ("Sum of first %d natural numbers = %d\n", num, sum);
}

Output:

22. Program to add two matrices .

#include <stdio.h>
 
int main()
{
   int m, n, c, d, first[10][10], second[10][10], sum[10][10];
 
   printf("Enter the number of rows and columns of matrix\n");
   scanf("%d%d", &m, &n);
   printf("Enter the elements of first matrix\n");
 
   for (c = 0; c < m; c++)
      for (d = 0; d < n; d++)
         scanf("%d", &first[c][d]);
 
   printf("Enter the elements of second matrix\n");
 
   for (c = 0; c < m; c++)
      for (d = 0 ; d < n; d++)
         scanf("%d", &second[c][d]);
   
   printf("Sum of entered matrices:-\n");
   
   for (c = 0; c < m; c++) {
      for (d = 0 ; d < n; d++) {
         sum[c][d] = first[c][d] + second[c][d];
         printf("%d\t", sum[c][d]);
      }
      printf("\n");
   }
 
   return 0;
}

Output:

23. Program to multiply two matrices .

 
int main()
{
  int m, n, p, q, c, d, k, sum = 0;
  int first[10][10], second[10][10], multiply[10][10];
 
  printf("Enter number of rows and columns of first matrix\n");
  scanf("%d%d", &m, &n);
  printf("Enter elements of first matrix\n");
 
  for (c = 0; c < m; c++)
    for (d = 0; d < n; d++)
      scanf("%d", &first[c][d]);
 
  printf("Enter number of rows and columns of second matrix\n");
  scanf("%d%d", &p, &q);
 
  if (n != p)
    printf("The matrices can't be multiplied with each other.\n");
  else
  {
    printf("Enter elements of second matrix\n");
 
    for (c = 0; c < p; c++)
      for (d = 0; d < q; d++)
        scanf("%d", &second[c][d]);
 
    for (c = 0; c < m; c++) {
      for (d = 0; d < q; d++) {
        for (k = 0; k < p; k++) {
          sum = sum + first[c][k]*second[k][d];
        }
 
        multiply[c][d] = sum;
        sum = 0;
      }
    }
 
    printf("Product of the matrices:\n");
 
    for (c = 0; c < m; c++) {
      for (d = 0; d < q; d++)
        printf("%d\t", multiply[c][d]);
 
      printf("\n");
    }
  }
 
  return 0;
}

Output:

24. Program to check whether a string is palindrome or not .

#include <stdio.h>
#include <string.h>

int main(){
    char string1[20];
    int i, length;
    int flag = 0;
    
    printf("Enter a string:");
    scanf("%s", string1);
    
    length = strlen(string1);
    
    for(i=0;i < length ;i++){
        if(string1[i] != string1[length-i-1]){
            flag = 1;
            break;
   }
}
    
    if (flag) {
        printf("%s is not a palindrome\n", string1);
    }    
    else {
        printf("%s is a palindrome\n", string1);
    }
    return 0;
}

Output:

25. Program to perform basic operations like lenghth of string ,string concat, string copy ,string compare and string reverse.

#include <stdio.h> 
#include <stdlib.h>
  
int find_length(char string[]) {
    int len = 0, i;
    for (i = 0; string[i] != '\0'; i++) {
      len++;
    }
    return len;
  }

void join_strings(char string1[], char string2[]) {
  int i, len1, len2;
  len1 = find_length(string1);
  len2 = find_length(string2);
  for (i = len1; i < len1 + len2; i++) {
    string1[i] = string2[i - len1];
  }
  string1[i] = '\0'; //adding null character at the end of input
}


int compare_strings(char string1[], char string2[]) {
  int len1, len2, i, count = 0;
  len1 = find_length(string1);
  len2 = find_length(string2);
   if (len1 != len2)
    return 1;
  for (i = 0; i < len1; i++) {
    if (string1[i] == string2[i])
      count++;
  }
  if (count == len1)
    return 0;
  return 1;
}

void copy_string(char destination[], char source[]) {
  int len, i;
  len = find_length(source);
  for (i = 0; i < len; i++) {
    destination[i] = source[i];
  }
  destination[i] = '\0';
}

int main() {
  char string1[20], string2[20]; //string variables declaration with size 20
  int choice;
  while (1) {
    printf("\n1. Find Length \n2. Concatenate \n3. Compare \n4. Copy \n5. Exit\n");
    printf("Enter your choice: ");
    scanf("%d", & choice);
    switch (choice) {
    case 1:
      printf("Enter the string: ");
      scanf("%s", string1);
      printf("The length of string is %d", find_length(string1));
      break;
    case 2:
      printf("Enter two strings: ");
      scanf("%s%s", string1, string2);
      join_strings(string1, string2);
      printf("The concatenated string is %s", string1);
      break;
    case 3:
      printf("Enter two strings: ");
      scanf("%s%s", string1, string2);
      if (compare_strings(string1, string2) == 0) {
        printf("They are equal");
      } else {
        printf("They are not equal");
      }
      break;
    case 4:
      printf("Enter a string: ");
      scanf("%s", string1);
      printf("String1 = %s\n");
      printf("After copying string1 to string 2\n");
      copy_string(string2, string1);
      printf("String2 = %s", string2);
      break;
    case 5:
      exit(0);
    }
  }
  return 0;
}

Output:

26. Programs to swap two numbers using call by value and call by reference.

a. Swap by call by value

#include <stdio.h>
 
 
void swap(int, int);
 
int main()
{
   int x, y;
 
   printf("Enter the value of x and y\n");
   scanf("%d%d",&x,&y);
 
   printf("Before Swapping\nx = %d\ny = %d\n", x, y);
 
   swap(x, y); 
 
   printf("After Swapping\nx = %d\ny = %d\n", x, y);
 
   return 0;
}
 
void swap(int a, int b)
{
   int temp;
 
   temp = b;
   b = a;
   a = temp;
    printf("Values of a and b is %d  %d\n",a,b);
}

Output:

b. Swap by reference

#include <stdio.h>

void swap(int * num1, int * num2);

int main()
{
    int num1, num2;
    printf("Enter two numbers: ");
    scanf("%d%d", &num1, &num2);
    printf("Before swapping in main n");
    printf("Value of num1 = %d \n", num1);
    printf("Value of num2 = %d \n\n", num2);

    swap(&num1, &num2);
    printf("After swapping in main n");
    printf("Value of num1 = %d \n", num1);
    printf("Value of num2 = %d \n\n", num2);

    return 0;
}

void swap(int * num1, int * num2)
{
    int temp;
    temp = *num1;

    *num1= *num2;

    *num2= temp;

    printf("After swapping in swap function n");
    printf("Value of num1 = %d \n", *num1);
    printf("Value of num2 = %d \n\n", *num2);
}

Output: 27. Program to calculate factorial of a number with and without recursion both.

a. Factorial Using Recursion

#include <stdio.h>
long int multi(int n);
int main()
{
    int n;
    printf("Enter a positive integer: ");
    scanf("%d", &n);
    printf("Factorial of %d = %ld\n", n, multi(n));
    return 0;
}
long int multi(int n)
{
    if (n >= 1)
        return n*multi(n-1);
    else
        return 1;
}

Output:

b. Without Recursion

#include <stdio.h>
 
int main()
{
  int c, n, fact = 1;
 
  printf("Enter a number to calculate its factorial\n");
  scanf("%d", &n);
 
  for (c = 1; c <= n; c++)
    fact = fact * c;
 
  printf("Factorial of %d = %d\n", n, fact);
 
  return 0;
}

Output:

28. Program to print Fibonacci series with and without recursion both.

a. Fibonacci series with recursion

#include<stdio.h>
 
int Fibonacci(int);
 
int main()
{
   int n, i = 0, c;
printf("Enter Number till you want the series:\n");
   scanf("%d",&n);
 
   printf("Fibonacci series\n");
 
   for ( c = 1 ; c <= n ; c++ )
   {
      printf("%d\n", Fibonacci(i));
      i++; 
   }
 
   return 0;
}
 
int Fibonacci(int n)
{
   if ( n == 0 )
      return 0;
   else if ( n == 1 )
      return 1;
   else
      return ( Fibonacci(n-1) + Fibonacci(n-2) );
}

Output:

b. Without recursion

#include<stdio.h>    
int main()    
{    
 int n1=0,n2=1,n3,i,number;    
 printf("Enter the number of elements:");    
 scanf("%d",&number);    
 printf("\n%d %d",n1,n2); 
 for(i=2;i<number;++i 
 {    
  n3=n1+n2;    
  printf(" %d",n3);    
  n1=n2;    
  n2=n3;    
 }  
  return 0;  
 }    

Output:

29. Program to calculate average of 5 numbers using function.

#include <stdio.h>
float average(int a, int b, int c, int d, int e){
    return (float)(a+b+c+d+e)/5;
}
int main()
{
    int num1, num2, num3, num4, num5;
    float avg;

    printf("Enter first number: ");
    scanf("%d",&num1);
    printf("Enter second number: ");
    scanf("%d",&num2);
   printf("Enter third number: ");
    scanf("%d",&num3);
    printf("Enter fourth number: ");
    scanf("%d",&num4);
   printf("Enter fifth number: ");
    scanf("%d",&num5);
    

    
    avg = average(num1, num2, num3, num4, num5);

                                                                               
    printf("Average of 5 numbers is: %.2f\n",avg);
    return 0;
}   

Output:

30. Program to implement linear serach and binary.

a. Linear Search

#include <stdio.h>
  
int main()
{
  int array[100], search, c, n;
 
  printf("Enter number of elements in array\n");
  scanf("%d", &n);
 
  printf("Enter %d integer(s)\n", n);
   
  for (c = 0; c < n; c++)
    scanf("%d", &array[c]);
    
  printf("Enter a number to search\n");
  scanf("%d", &search);
 
  for (c = 0; c < n; c++)
  {
    if (array[c] == search)                                      
    {
      printf("%d is present at location %d.\n", search, c+1);
      break;
    }
  }
  if (c == n)
    printf("%d isn't present in the array.\n", search);
  
  return 0;
}

Output:

b. Binary Search

#include <stdio.h>
 
int main()
{
   int c, first, last, middle, n, search, array[100];
 
   printf("Enter number of elements\n");
   scanf("%d",&n);
 
   printf("Enter %d integers\n", n);
 
   for (c = 0; c < n; c++)
      scanf("%d",&array[c]);
 
   printf("Enter value to find\n");
   scanf("%d", &search);
 
   first = 0;
   last = n - 1;
   middle = (first+last)/2;
 
   while (first <= last) {
      if (array[middle] < search)
         first = middle + 1;    
      else if (array[middle] == search) {
         printf("%d found at location %d.\n", search, middle+1);
         break;
      }
      else
         last = middle - 1;
 
      middle = (first + last)/2;
   }
   if (first > last)
      printf("Not found! %d isn't present in the list.\n", search);
 
   return 0;  
}

Output:

31. Program to implement bubble sort.

#include <stdio.h>
 
int main()
{
  int array[100], n, c, d, swap;
 
  printf("Enter number of elements\n");
  scanf("%d", &n);
 
  printf("Enter %d integers\n", n);
 
  for (c = 0; c < n; c++)
    scanf("%d", &array[c]);
 
  for (c = 0 ; c < n - 1; c++)
  {
    for (d = 0 ; d < n - c - 1; d++)
    {
      if (array[d] > array[d+1]) 
      {
        swap       = array[d];
        array[d]   = array[d+1];
        array[d+1] = swap;
      }
    }
  }
 
  printf("Sorted list in ascending order:\n");
 
  for (c = 0; c < n; c++)
     printf("%d\n", array[c]);
 
  return 0;
}

Output:

32. Program for students information using array structure.

#include <stdio.h>
struct student
{
    char name[50];
    int roll;
    float marks;
} s[10];
int main()
{
    int i;
    printf("Enter information of students:\n");
    for(i=0; i<3; ++i)
    {
        s[i].roll = i+1;
        printf("\nFor roll number%d,\n",s[i].roll);
        printf("Enter name: ");
        scanf("%s",s[i].name);
        printf("Enter marks: ");
        scanf("%f",&s[i].marks);
        printf("\n");
    }
    printf("Displaying Information:\n\n");
    for(i=0; i<3; ++i)
    {
        printf("\nRoll number: %d\n",i+1);
        printf("Name: ");
        puts(s[i].name);
        printf("Marks: %.1f",s[i].marks);
        printf("\n");
    }
    return 0;
}

Output:

33. Programs to compute the transpose of a matrix.

#include <stdio.h>

int main()
{
    int a[10][10], transpose[10][10], r, c, i, j;
    printf("Enter rows and columns of matrix: ");
    scanf("%d %d", &r, &c);
    printf("\nEnter elements of matrix:\n");
    for(i=0; i<r; ++i)
        for(j=0; j<c; ++j)
        {
            printf("Enter element a%d%d: ",i+1, j+1);
            scanf("%d", &a[i][j]);
        }
    printf("\nEntered Matrix: \n");
    for(i=0; i<r; ++i)
        for(j=0; j<c; ++j)
        {
            printf("%d  ", a[i][j]);
            if (j == c-1)
                printf("\n\n");
        }
    for(i=0; i<r; ++i)
        for(j=0; j<c; ++j)
        {
            transpose[j][i] = a[i][j];
        }
    printf("\nTranspose of Matrix:\n");
    for(i=0; i<c; ++i)
        {
            printf("%d  ",transpose[i][j]);
            if(j==r-1)
                printf("\n\n");
        }
    return 0;
}

Output:

34. Program to print the address of variable using pointer.

#include <stdio.h>
int main() {
  int b;
  int *pt;

  b = 10;
  pt = &b;

  printf("\n[&a ]:Address of B = %p\n", &b);
return 0 ;
}

Output:

35. Program to access array using pointer.

#include <stdio.h>
int main()
{
   int data[5], i;
   printf("Enter elements: ");
   for(i = 0; i < 5; ++i)
     scanf("%d", data + i);
   printf("You entered: \n");
   for(i = 0; i < 5; ++i)
      printf("%d\n", *(data + i));
   return 0;
}

Output: