Explain What is the given code is all about. Remove the mistake and elaborate.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Explain What is the given code is all about. Remove the mistake and elaborate.

#include<stdio.h>
void fun(int *x,int *y)
{
int t;
t=*x;
*x=*y;
*y=t;
}
int main()
{
int num1,num2;
cout<<"Enter value of num1 : ";
cin>>num1;
cout<<"Enter value of num2 : ";
cin>>num2;
cout<<"Before Swapping: Num1 is : , Num2 is : "<<num2<<num2);
fun(num1,num2);
cout<<"After Swapping: num1 is: %d num2 is : "<<num1<<num2);
return 0;
}

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