Toggle bits given range

Problem 
http://practice.geeksforgeeks.org/problems/toggle-bits-given-range/0

Solution

	#include <iostream>
	#include <cstdlib>
	using namespace std;
	int main(int argc, char** argv) {
	int t;
	int N,L,R;
	cin>>t;// test cases
	for(int i=0;i<t;i++)
	{
	cin>>N>>L>>R;
	for(int i=L-1;i<R;i++)
	{
	N^=1<<i;
	}
	cout<<N<<endl;
	}
	return 0;
	}

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