분할정복 거듭제곱을 TMP로 구현해 보았습니다. I made divide-and-conquer exponentiation with TMP

dcpowtmp.cpp

#include<iostream>
#include<type_traits>
using namespace std;
using ll=long long;
template<ll val>
struct value{
	ll value=val;
};
template <ll val,ll cur,ll rem>
struct dcpow{};

template <ll val,ll cur>
struct dcpow<val,cur,0>
:public integral_constant<ll,
dcpow<val,cur/2,(cur/2)%2>::value*
dcpow<val,cur/2,(cur/2)%2>::value>
{};

template <ll val,ll cur>
struct dcpow<val,cur,1>
:public integral_constant<ll,
dcpow<val,cur/2,(cur/2)%2>::value*
dcpow<val,cur/2,(cur/2)%2>::value
*val>
{};

template <ll val>
struct dcpow<val,1,1>
:public integral_constant<ll,val>
{};
template<ll val,ll c>
using dcpow_t=dcpow<val,c,c%2>;

int main()
{
	cout<<dcpow_t<2,30>::value;
}