IO 5

• Problem Description

  
  Write a program to scan the given input and perform unary prefix increment and decrement operators. Condition : Variable name to be used: Preadd, Presub, Postadd, Postsub
  
  Perform the following operations:
  1. Preadd = ++a
  2. Presub = --a
  3. Postadd =a++
  4. Postsub =a--

• Test Case 1

  
  Input (stdin)

  2
  
  

  Expected Output

  3
  
  2
  
  2
  
  3

• Test Case 2

  
  Input (stdin)

  7
  
  

  Expected Output

  8
  
  7
  
  7
  
  8

Solution

#include <stdio.h>

int main()

{

int inp=0;

  scanf ("%d",&inp);

  printf ("%d",++inp);

  printf ("\n%d",--inp);

  printf ("\n%d",inp++);

  printf ("\n%d",inp--);

return 0;

}