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

• Program

• #include <stdio.h>
  int main()
  {
    int a,preadd,presub,postadd,postsub;
    scanf("%d",&a);
    preadd=++a;
     presub=--a;
       postadd=a++;
    postsub=a--;
    printf("%d\n",preadd);
      printf("%d\n",presub);
      printf("%d\n",postadd);
      printf("%d\n",postsub);
   
  
   return 0;
  }