Simple C++ Programs on Code Blocks

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Simple C++ Programs on Code Blocks

1.Program to reverse a number?

Program:-

Pythonpedia

Code:-

#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:-

Pythonpedia

Enter a number to reverse

2142

Reverse of entered number is = 2412

Process returned 0 (0x0)   execution time : 17.345 s

Press any key to continue.

2.Program to calculate factorial?

Program:-

Pythonpedia

Code:-

#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:-

Pythonpedia

Enter a number to calculate its factorial

8

Factorial of 8 = 40320

Process returned 0 (0x0)   execution time : 3.750 s

Press any key to continue.

3.Program to perform some mathematic operations?

Program:-

Pythonpedia

Code:-

#include <stdio.h>

int main()

{

   int first, second, add, subtract, multiply;

   float divide;

   printf("Enter two integers\n");

   scanf("%d%d", &first, &second);

   add = first + second;

   subtract = first - second;

   multiply = first * second;

   divide = first / (float)second;   //typecasting

   printf("Sum = %d\n", add);

   printf("Difference = %d\n", subtract);

   printf("Multiplication = %d\n", multiply);

   printf("Division = %.2f\n", divide);

   return 0;

}

Output:-

Pythonpedia

Enter two integers

8 9

Sum = 17

Difference = -1

Multiplication = 72

Division = 0.89

Process returned 0 (0x0)   execution time : 5.719 s

Press any key to continue.

4.Program to calculate string length?

Program:-

Pythonpedia

Code:-

#include <stdio.h>

#include <string.h>

int main()

{

   char a[100];

   int length;

   printf("Enter a string to calculate it's length\n");

   gets(a);

   length = strlen(a);

   printf("Length of the string = %d\n",length);

   return 0;

}

Output:-

Pythonpedia

Enter a string to calculate it's length

please visit and share my blog pythoogram.

Length of the string = 42

Process returned 0 (0x0)   execution time : 49.518 s

Press any key to continue.

5.Program to reverse the string?

Program:-

Pythonpedia

Code:-

#include <stdio.h>

#include <string.h>

int main()

{

   char arr[100];

   printf("Enter a string to reverse\n");

   gets(arr);

   strrev(arr);

   printf("Reverse of the string is \n%s\n", arr);

   return 0;

}

Output:-

Pythonpedia

Enter a string to reverse

My name is surajit.

Reverse of the string is

.tijarus si eman yM

Process returned 0 (0x0)   execution time : 28.798 s

Press any key to continue.

-Thank you