結果
| 問題 |
No.673 カブトムシ
|
| コンテスト | |
| ユーザー |
threepipes_s
|
| 提出日時 | 2018-04-13 23:17:32 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,966 bytes |
| コンパイル時間 | 2,264 ms |
| コンパイル使用メモリ | 79,216 KB |
| 実行使用メモリ | 52,880 KB |
| 最終ジャッジ日時 | 2024-06-26 21:54:47 |
| 合計ジャッジ時間 | 4,024 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 11 WA * 3 |
ソースコード
import java.io.*;
import java.math.BigInteger;
import java.util.Arrays;
public class Main implements Runnable {
static ContestScanner in;
static Writer out;
public static void main(String[] args) {
new Thread(null, new Main(), "", 16 * 1024 * 1024).start();
}
public void run() {
Main main = new Main();
try {
in = new ContestScanner();
out = new Writer();
main.solve();
out.close();
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
void solve() throws IOException {
final long mod = 1000000007;
long b = in.nextLong();
long c = in.nextLong();
long d = in.nextLong();
if (c == 1) {
System.out.println(b % mod * d % mod);
return;
}
BigInteger biC = BigInteger.valueOf(c);
BigInteger biD = BigInteger.valueOf(d);
BigInteger mp = biC.modPow(biD, BigInteger.valueOf(mod));
b %= mod;
c %= mod;
d %= mod;
long ans = b * c % mod * ((mp.longValue() - 1 + mod) % mod) % mod * modinv((c - 1 + mod) % mod, mod) % mod;
System.out.println(ans);
}
long modpow(long n, long a, long mod){
long res = 1;
while(a > 0){
if((a&1)==1) res = (res * n) % mod;
n = n * n % mod;
a >>= 1;
}
return res;
}
long modinv(long n, long mod){
return modpow(n, mod-2, mod);
}
}
class Writer extends PrintWriter{
public Writer(String filename)throws IOException
{super(new BufferedWriter(new FileWriter(filename)));}
public Writer()throws IOException {super(System.out);}
}
class ContestScanner implements Closeable {
private BufferedReader in;private int c=-2;
public ContestScanner()throws IOException
{in=new BufferedReader(new InputStreamReader(System.in));}
public ContestScanner(String filename)throws IOException
{in=new BufferedReader(new InputStreamReader(new FileInputStream(filename)));}
public String nextToken()throws IOException {
StringBuilder sb=new StringBuilder();
while((c=in.read())!=-1&&Character.isWhitespace(c));
while(c!=-1&&!Character.isWhitespace(c)){sb.append((char)c);c=in.read();}
return sb.toString();
}
public String readLine()throws IOException{
StringBuilder sb=new StringBuilder();if(c==-2)c=in.read();
while(c!=-1&&c!='\n'&&c!='\r'){sb.append((char)c);c=in.read();}
return sb.toString();
}
public long nextLong()throws IOException,NumberFormatException
{return Long.parseLong(nextToken());}
public int nextInt()throws NumberFormatException,IOException
{return(int)nextLong();}
public double nextDouble()throws NumberFormatException,IOException
{return Double.parseDouble(nextToken());}
public void close() throws IOException {in.close();}
}
threepipes_s