What happens when you attempt to compile and run the following code?

#include

#include

#include <algorithm>

using namespace std;

templatestruct Out {

ostream & out;

Out(ostream & o): out(o){}

void operator() (const T & val ) { out<

struct Sequence { int start;

Sequence(int start):start(start){}

int operator()() {return 10*(1+(start++ %3));}

};

int main() {

deque d1(10);

generate(d1.begin(), d1.end(), Sequence(1));

sort(d1.begin(), d1.end());

pair::iterator, deque::iterator > result = equal_range(d1.begin(), d1.end(), 20);

for_each(result.first, result.second, Out(cout));cout<

return 0;

}

Program outputs: