D
Size: a a a
D
U
D
D
U
U
MK
U
struct iterator
{
auto begin() {
return data.begin();
}
iterator end() {
return data.end();
}
};
U
U
D
struct iterator
{
auto begin() {
return data.begin();
}
iterator end() {
return data.end();
}
};
U
U
U
D
D
struct iterator
{
auto begin() {
return data.begin();
}
iterator end() {
return data.end();
}
};
D
U
U
U