結果

問題 No.3051 Make All Divisible
ユーザー ecottea
提出日時 2025-03-08 01:57:00
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 151 ms / 2,000 ms
コード長 9,541 bytes
コンパイル時間 5,037 ms
コンパイル使用メモリ 277,812 KB
実行使用メモリ 8,608 KB
最終ジャッジ日時 2025-03-08 01:57:07
合計ジャッジ時間 7,090 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
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ファイルパターン 結果
other AC * 31
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ソースコード

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プレゼンテーションモードにする

#ifndef HIDDEN_IN_VS //
//
#define _CRT_SECURE_NO_WARNINGS
//
#include <bits/stdc++.h>
using namespace std;
//
using ll = long long; using ull = unsigned long long; // -2^63 2^63 = 9e18int -2^31 2^31 = 2e9
using pii = pair<int, int>; using pll = pair<ll, ll>; using pil = pair<int, ll>; using pli = pair<ll, int>;
using vi = vector<int>; using vvi = vector<vi>; using vvvi = vector<vvi>; using vvvvi = vector<vvvi>;
using vl = vector<ll>; using vvl = vector<vl>; using vvvl = vector<vvl>; using vvvvl = vector<vvvl>;
using vb = vector<bool>; using vvb = vector<vb>; using vvvb = vector<vvb>;
using vc = vector<char>; using vvc = vector<vc>; using vvvc = vector<vvc>;
using vd = vector<double>; using vvd = vector<vd>; using vvvd = vector<vvd>;
template <class T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>;
using Graph = vvi;
//
const double PI = acos(-1);
int DX[4] = { 1, 0, -1, 0 }; // 4
int DY[4] = { 0, 1, 0, -1 };
int INF = 1001001001; ll INFL = 4004004003094073385LL; // (int)INFL = INF, (int)(-INFL) = -INF;
//
struct fast_io { fast_io() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(18); } } fastIOtmp;
//
#define all(a) (a).begin(), (a).end()
#define sz(x) ((int)(x).size())
#define lbpos(a, x) (int)distance((a).begin(), std::lower_bound(all(a), (x)))
#define ubpos(a, x) (int)distance((a).begin(), std::upper_bound(all(a), (x)))
#define Yes(b) {cout << ((b) ? "Yes\n" : "No\n");}
#define rep(i, n) for(int i = 0, i##_len = int(n); i < i##_len; ++i) // 0 n-1
#define repi(i, s, t) for(int i = int(s), i##_end = int(t); i <= i##_end; ++i) // s t
#define repir(i, s, t) for(int i = int(s), i##_end = int(t); i >= i##_end; --i) // s t
#define repe(v, a) for(const auto& v : (a)) // a
#define repea(v, a) for(auto& v : (a)) // a
#define repb(set, d) for(int set = 0, set##_ub = 1 << int(d); set < set##_ub; ++set) // d
#define repis(i, set) for(int i = lsb(set), bset##i = set; i < 32; bset##i -= 1 << i, i = lsb(bset##i)) // set
#define repp(a) sort(all(a)); for(bool a##_perm = true; a##_perm; a##_perm = next_permutation(all(a))) // a
#define uniq(a) {sort(all(a)); (a).erase(unique(all(a)), (a).end());} //
#define EXIT(a) {cout << (a) << endl; exit(0);} //
#define inQ(x, y, u, l, d, r) ((u) <= (x) && (l) <= (y) && (x) < (d) && (y) < (r)) //
//
template <class T> inline ll powi(T n, int k) { ll v = 1; rep(i, k) v *= n; return v; }
template <class T> inline bool chmax(T& M, const T& x) { if (M < x) { M = x; return true; } return false; } // true
    
template <class T> inline bool chmin(T& m, const T& x) { if (m > x) { m = x; return true; } return false; } // true
    
template <class T> inline T getb(T set, int i) { return (set >> i) & T(1); }
template <class T> inline T smod(T n, T m) { n %= m; if (n < 0) n += m; return n; } // mod
//
template <class T, class U> inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }
template <class T> inline istream& operator>>(istream& is, vector<T>& v) { repea(x, v) is >> x; return is; }
template <class T> inline vector<T>& operator--(vector<T>& v) { repea(x, v) --x; return v; }
template <class T> inline vector<T>& operator++(vector<T>& v) { repea(x, v) ++x; return v; }
#endif //
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#ifdef _MSC_VER
#include "localACL.hpp"
#endif
using mint = modint998244353;
//using mint = static_modint<(ll)1e9+7>;
//using mint = modint; // mint::set_mod(m);
namespace atcoder {
inline istream& operator>>(istream& is, mint& x) { ll x_; is >> x_; x = x_; return is; }
inline ostream& operator<<(ostream& os, const mint& x) { os << x.val(); return os; }
}
using vm = vector<mint>; using vvm = vector<vm>; using vvvm = vector<vvm>; using vvvvm = vector<vvvm>; using pim = pair<int, mint>;
#endif
#ifdef _MSC_VER // Visual Studio
#include "local.hpp"
#else // gcc
inline int popcount(int n) { return __builtin_popcount(n); }
inline int popcount(ll n) { return __builtin_popcountll(n); }
inline int lsb(int n) { return n != 0 ? __builtin_ctz(n) : 32; }
inline int lsb(ll n) { return n != 0 ? __builtin_ctzll(n) : 64; }
inline int msb(int n) { return n != 0 ? (31 - __builtin_clz(n)) : -1; }
inline int msb(ll n) { return n != 0 ? (63 - __builtin_clzll(n)) : -1; }
#define dump(...)
#define dumpel(v)
#define dump_math(v)
#define input_from_file(f)
#define output_to_file(f)
#define Assert(b) { if (!(b)) { vc MLE(1<<30); EXIT(MLE.back()); } } // RE MLE
#endif
ll WA(int n, int K, vl a) {
sort(all(a), greater<ll>());
ll a_sum = accumulate(all(a), 0LL);
if (a_sum % K != 0) {
return -1;
}
if (n == K) {
if (a[0] == a[n - 1]) {
return a[0] % K;
}
else {
return -1;
}
}
vl r(n);
rep(i, n) r[i] = a[i] % K;
ll r_sum = accumulate(all(r), 0LL);
ll Q = a[n - 1] / K;
repi(q, 0, Q) {
ll c = r[0];
if (r_sum >= c * K) return r_sum / K;
rep(i, n) {
r[i] += K;
r_sum += K;
}
}
return -1;
}
//O(n + m)
/*
* st
* nxt(s) s
*/
template <class T, class FUNC>
map<T, int> dynamic_BFS(T st, const FUNC& nxt) {
// verify : https://atcoder.jp/contests/abc241/tasks/abc241_f
map<T, int> dist; // st
dist[st] = 0;
queue<T> que; //
que.push(st);
while (!que.empty()) {
// s
auto s = que.front(); que.pop();
repe(t, nxt(s)) {
// t
if (dist.count(t)) continue;
//
dist[t] = dist[s] + 1;
// t
que.push(t);
}
}
return dist;
/* nxt
using T = ll;
auto nxt = [&](T s) {
vector<T> res;
return res;
};
*/
}
//O(nCr)
/*
* n Ω r set⊂Ω
*
* r > 0
*/
// verify : https://onlinejudge.u-aizu.ac.jp/courses/lesson/8/ITP2/all/ITP2_11_D
#define repbc(set, n, r) for(int set = (1 << int(r)) - 1, lb, nx; set < (1 << int(n)); lb = set & -set, nx = set + lb, set = (((set & ~nx) / lb) >> 1
    ) | nx)
ll naive(int n, int K, vl a) {
using T = vl;
auto nxt = [&](T s) {
vector<T> res;
if (s.empty()) return res;
bool ok = true;
rep(i, n) {
if (s[i] % K != 0) {
ok = false;
break;
}
}
if (ok) {
res.push_back(vl());
return res;
}
repbc(set, n, K) {
bool ok = true;
repis(i, set) {
if (s[i] == 0) {
ok = false;
break;
}
}
if (!ok) continue;
repis(i, set) s[i]--;
res.push_back(s);
repis(i, set) s[i]++;
}
return res;
};
auto dist = dynamic_BFS(a, nxt);
return dist[{}] - 1;
}
ll solve(int n, int K, vl a) {
sort(all(a), greater<ll>());
ll a_sum = accumulate(all(a), 0LL);
if (a_sum % K != 0) {
return -1;
}
vl r(n);
rep(i, n) {
r[i] = a[i] % K;
a[i] -= r[i];
}
dump(r);
ll r_sum = accumulate(all(r), 0LL);
ll r_max = *max_element(all(r));
if (r_sum >= r_max * K) return r_sum / K;
priority_queue_rev<pli> q;
rep(i, n) {
if (a[i] >= K) {
q.push({ r[i], i });
}
}
while (!q.empty()) {
auto [ri, i] = q.top(); q.pop();
r[i] += K;
chmax(r_max, r[i]);
r_sum += K;
a[i] -= K;
dump(r);
if (r_sum >= r_max * K) return r_sum / K;
if (a[i] >= K) {
q.push({ r[i], i });
}
}
return -1;
}
/*
1
4 3
10000001 1 0 0
TLE
*/
void bug_find() {
#ifdef _MSC_VER
//
mute_dump = true;
mt19937_64 mt;
mt.seed(0);
uniform_int_distribution<ll> rnd(0LL, 1LL << 60);
rep(hoge, 100) {
int n = rnd(mt) % 5 + 1;
int K = rnd(mt) % n + 1;
vl a(n);
rep(i, n) a[i] = rnd(mt) % 10;
auto res_naive = naive(n, K, a);
auto res_solve = solve(n, K, a);
if (res_naive != res_solve) {
cout << "----------error!----------" << endl;
cout << "input:" << endl;
cout << n << " " << K << endl;
cout << a << endl;
cout << "results:" << endl;
cout << res_naive << endl;
cout << res_solve << endl;
cout << "--------------------------" << endl;
}
}
mute_dump = false;
exit(0);
#endif
}
int main() {
// input_from_file("input.txt");
// output_to_file("output.txt");
bug_find();
int t = 1;
cin >> t; //
while (t--) {
dump("------------------------------");
int n, K;
cin >> n >> K;
vl a(n);
cin >> a;
dump(naive(n, K, a)); dump("======");
cout << solve(n, K, a) << endl;
}
}
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