#include <iostream>
#include <bitset>
#include <string>
using std::cout;
using std::endl;
int main()
{
std::bitset<16> bo(std::string("0"));
cout << bo << endl;
bo[0] = 1;
bo[3] = 1;
bo[10] = 1;
cout << bo << endl;
std::cout << bo.reset(0) << endl;
return 0;
}
/*
run:
0000000000000000
0000010000001001
0000010000001000
*/