結果

問題 No.2744 Power! or +1
ユーザー tenten
提出日時 2024-04-22 17:05:13
言語 Java
(openjdk 23)
結果
TLE  
実行時間 -
コード長 3,289 bytes
コンパイル時間 2,553 ms
コンパイル使用メモリ 80,096 KB
実行使用メモリ 142,380 KB
最終ジャッジ日時 2024-10-14 16:13:45
合計ジャッジ時間 11,277 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample -- * 2
other TLE * 1 -- * 8
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

import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;
public class Main {
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner();
int n = sc.nextInt();
long a = sc.nextInt();
long b = sc.nextInt();
long c = sc.nextInt();
int max = 1;
for (int i = 2; pow(b, i) < (n - 1) * a; i++) {
max = i;
}
PriorityQueue<Path> queue = new PriorityQueue<>();
queue.add(new Path(1, 0));
long[] costs = new long[n * 2];
Arrays.fill(costs, Long.MAX_VALUE);
while (queue.size() > 0) {
Path p = queue.poll();
if (costs[p.idx] <= p.value) {
continue;
}
costs[p.idx] = p.value;
if (p.idx == 0) {
break;
}
if (p.idx == n) {
queue.add(new Path(0, p.value));
continue;
}
queue.add(new Path((p.idx + 1) % (n * 2), p.value + a));
if (p.idx >= 2) {
for (int i = 2; i <= max; i++) {
queue.add(new Path(powmod(p.idx, i, n * 2), p.value + pow(b, i)));
}
}
if (p.idx > 2 && p.idx < n) {
queue.add(new Path(factmod(p.idx, n * 2), p.value + c));
} else if (p.idx >= n) {
queue.add(new Path(0, p.value + c));
}
}
System.out.println(costs[0]);
}
static long pow(long x, int p) {
long ans = 1;
for (int i = 1; i <= p; i++) {
ans *= x;
}
return ans;
}
static int powmod(long x, int p, int mod) {
long ans = 1;
for (int i = 1; i <= p; i++) {
ans *= x;
ans %= mod;
}
return (int)ans;
}
static int factmod(int x, int mod) {
long ans = 1;
for (int i = 2; i <= x; i++) {
ans *= i;
ans %= mod;
}
return (int)ans;
}
static class Path implements Comparable<Path> {
int idx;
long value;
public Path(int idx, long value) {
this.idx = idx;
this.value = value;
}
public int compareTo(Path another) {
return Long.compare(value, another.value);
}
}
}
class Scanner {
BufferedReader br;
StringTokenizer st = new StringTokenizer("");
StringBuilder sb = new StringBuilder();
public Scanner() {
try {
br = new BufferedReader(new InputStreamReader(System.in));
} catch (Exception e) {
}
}
public int nextInt() {
return Integer.parseInt(next());
}
public long nextLong() {
return Long.parseLong(next());
}
public double nextDouble() {
return Double.parseDouble(next());
}
public String next() {
try {
while (!st.hasMoreTokens()) {
st = new StringTokenizer(br.readLine());
}
} catch (Exception e) {
e.printStackTrace();
} finally {
return st.nextToken();
}
}
}
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