IO 15

• Problem Description

  
  write a program to swap two numbers using a temporary variable
  
  Input and Output Format:
  
  Refer sample input and output for formatting specification.
  
  All float values are displayed correct to 2 decimal places.
  
  All text in bold corresponds to input and the rest corresponds to output.

• CODING ARENA

• #include <stdio.h>

  int main()

  {

    int a,b,temp;

    scanf("%d%d",&a,&b);

    printf("Before Swapping");

    printf("\nx=%d",a);

    printf("\ny=%d",b);

    temp=a;

    a=b;

    b=temp;

    printf("\nAfter Swapping");

    printf("\n%d",a);

    printf("\n%d",b);

    

  
  

  return 0;

  }

• Test Case 1

  
  Input (stdin)

  10
  
  20
  
  

  Expected Output

  Before Swapping
  
  x=10
  
  y=20
  
  After Swapping
  
  20
  
  10

• Test Case 2

  
  Input (stdin)

  4
  
  5
  
  

  Expected Output

  Before Swapping
  
  x=4
  
  y=5
  
  After Swapping
  
  5
  
  4