結果

問題 No.2744 Power! or +1
ユーザー Series_205
提出日時 2024-04-20 18:39:23
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 356 ms / 3,000 ms
コード長 2,464 bytes
コンパイル時間 2,635 ms
コンパイル使用メモリ 212,268 KB
最終ジャッジ日時 2025-02-21 07:11:55
ジャッジサーバーID
(参考情報)
judge2 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 9
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define FOR(i, l, r) for(ll i = l; i < r; i++)
#define rep(i, n) FOR(i, 0, n)
#define FORR(i, l, r) for(ll i = r - 1; i >= l; i--)
#define ALL(ar) begin(ar), end(ar)
template <typename T1, typename T2>
inline bool chmax(T1 &a, T2 b) {
return a < b && (a = b, true);
}
template <typename T1, typename T2>
inline bool chmin(T1 &a, T2 b) {
return a > b && (a = b, true);
}
template <typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p) {
is >> p.first >> p.second;
return is;
}
template <typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p) {
os << p.first << ' ' << p.second;
return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v) {
for(T &x : v) is >> x;
return is;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
for(size_t i = 0; i < v.size(); i++) os << (i ? " " : "") << v[i];
return os;
}
//-------------------------------------------------
void solve() {
ll n, a, b, c;
cin >> n >> a >> b >> c;
vector<ll> fact(n);
vector<bool> up(n);
fact[0] = 1;
FOR(i, 1, n) {
fact[i] = fact[i - 1] * i % n;
if(fact[i - 1] * i >= n || up[i - 1]) {
up[i] = true;
}
}
ll mn = n * a;
vector dist(2, vector<ll>(n, mn));
dist[0][1] = 0;
priority_queue<tuple<ll, ll, ll>> que;
que.emplace(0, 0, 1);
while(!que.empty()) {
auto [d, x, y] = que.top();
que.pop();
d = -d;
if(dist[x][y] < d) continue;
if(chmin(dist[x || (y + 1) / n][(y + 1) % n], d + a)) {
que.emplace(-d - a, x || (y + 1) / n, (y + 1) % n);
}
int nx = (x || up[y]);
if(chmin(dist[nx][fact[y]], d + c)) {
que.emplace(-d - c, nx, fact[y]);
}
if(x == 1 && chmin(dist[x][0], d + c)) {
que.emplace(-d - c, x, 0);
}
ll cost = b * b;
ll ny = y * y % n;
nx = (x || y * y >= n);
while(true) {
if(cost > dist[1][0]) break;
if(chmin(dist[nx][ny], d + cost)) {
que.emplace(-d - cost, nx, ny);
}
cost *= b;
nx = (nx || ny * y >= n);
ny = ny * y % n;
}
}
cout << dist[1][0] << endl;
}
int main() {
int t = 1;
// cin >> t;
while(t--) solve();
}
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