#include #define fi first #define se second #define rep(i,s,n) for (int i = (s); i < (n); ++i) #define rrep(i,n,g) for (int i = (n)-1; i >= (g); --i) #define all(a) a.begin(),a.end() #define rall(a) a.rbegin(),a.rend() #define len(x) (int)(x).size() #define dup(x,y) (((x)+(y)-1)/(y)) #define pb push_back #define eb emplace_back #define Field(T) vector> using namespace std; using ll = long long; using ull = unsigned long long; template using pq = priority_queue,greater>; using P = pair; templatebool chmax(T&a,T b){if(abool chmin(T&a,T b){if(b> k >> n; set st; for (ll x = 1; x*x*x*x*x*x <= n; ++x) { for (ll y = 1; y*y*y*y <= n-x*x*x*x*x*x; ++y) { ll v = x*x*x*x*x*x + y*y*y*y; if (v % k != 0) continue; v /= k; ll sv = ll(sqrtl(v)); if (v == sv*sv) { st.emplace(v*k); } } } cout << len(st) << endl; return 0; }