/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
// your code goes here
}
}
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#include <iostream>
using namespace std;
int main()
{int n=4,sum=0;
while(n––)
{
sum=sum+n;
}
cout<<"sum="<<sum<<endl;
return 0;
}