#include <vector>
#include <iostream>
using namespace std;
int main()
{
vector<bool> vec;
vec.push_back(true);
vec.push_back(false);
vec.push_back(true);
vec.push_back(true);
vec.data();
for(size_t i = 0; i < vec.size(); i++)
{
if(vec[i])
cout<<"true"<<endl;
else
cout<<"false"<<endl;
}
return 0;
}
I2luY2x1ZGUgPHZlY3Rvcj4KI2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKQp7Cgl2ZWN0b3I8Ym9vbD4gdmVjOwoJdmVjLnB1c2hfYmFjayh0cnVlKTsKCXZlYy5wdXNoX2JhY2soZmFsc2UpOwoJdmVjLnB1c2hfYmFjayh0cnVlKTsKCXZlYy5wdXNoX2JhY2sodHJ1ZSk7CgoJdmVjLmRhdGEoKTsKCWZvcihzaXplX3QgaSA9IDA7IGkgPCB2ZWMuc2l6ZSgpOyBpKyspCgl7CgkJaWYodmVjW2ldKQoJCQljb3V0PDwidHJ1ZSI8PGVuZGw7CgkJZWxzZQoJCQljb3V0PDwiZmFsc2UiPDxlbmRsOwoJfQoJcmV0dXJuIDA7Cn0=