結果

問題 No.1343 Dividing Digit
ユーザー watarimaycry2watarimaycry2
提出日時 2021-01-16 15:08:45
言語 Java
(openjdk 23)
結果
AC  
実行時間 252 ms / 2,000 ms
コード長 3,585 bytes
コンパイル時間 3,951 ms
コンパイル使用メモリ 80,792 KB
実行使用メモリ 50,080 KB
最終ジャッジ日時 2024-11-27 17:30:27
合計ジャッジ時間 7,360 ms
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
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 22
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.util.*; import java.io.*; import java.math.*;
public class Main{
//Don't have to see. start------------------------------------------
static class InputIterator{
ArrayList<String> inputLine = new ArrayList<>(1024);
int index = 0; int max; String read;
InputIterator(){
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try{
while((read = br.readLine()) != null){
inputLine.addAll(Arrays.asList(read.split(" ")));
}
}catch(IOException e){}
max = inputLine.size();
}
boolean hasNext(){return (index < max);}
String next(){
if(hasNext()){
return inputLine.get(index++);
}else{
throw new IndexOutOfBoundsException("There is no more input");
}
}
}
static HashMap<Integer, String> CONVSTR = new HashMap<>();
static InputIterator ii = new InputIterator();//This class cannot be used in reactive problem.
static PrintWriter out = new PrintWriter(System.out);
static void flush(){out.flush();}
static void myout(Object t){out.println(t);}
static void myerr(Object t){System.err.print("debug:");System.err.println(t);}
static String next(){return ii.next();}
static boolean hasNext(){return ii.hasNext();}
static int nextInt(){return Integer.parseInt(next());}
static long nextLong(){return Long.parseLong(next());}
static double nextDouble(){return Double.parseDouble(next());}
static ArrayList<String> nextCharArray(){return myconv(next(), 0);}
static ArrayList<String> nextStrArray(int size){
ArrayList<String> ret = new ArrayList<>(size);
for(int i = 0; i < size; i++){
ret.add(next());
}
return ret;
}
static ArrayList<Integer> nextIntArray(int size){
ArrayList<Integer> ret = new ArrayList<>(size);
for(int i = 0; i < size; i++){
ret.add(Integer.parseInt(next()));
}
return ret;
}
static ArrayList<Long> nextLongArray(int size){
ArrayList<Long> ret = new ArrayList<>(size);
for(int i = 0; i < size; i++){
ret.add(Long.parseLong(next()));
}
return ret;
}
@SuppressWarnings("unchecked")
static String myconv(Object list, int no){//only join
String joinString = CONVSTR.get(no);
if(list instanceof String[]){
return String.join(joinString, (String[])list);
}else if(list instanceof ArrayList){
return String.join(joinString, (ArrayList)list);
}else{
throw new ClassCastException("Don't join");
}
}
static ArrayList<String> myconv(String str, int no){//only split
String splitString = CONVSTR.get(no);
return new ArrayList<String>(Arrays.asList(str.split(splitString)));
}
public static void main(String[] args){
CONVSTR.put(8, " "); CONVSTR.put(9, "\n"); CONVSTR.put(0, "");
solve();flush();
}
//Don't have to see. end------------------------------------------
static void solve(){//Here is the main function
int N = nextInt();
int K = nextInt();
ArrayList<Integer> list = nextIntArray(N);
long output = 0;
int mod = 0;
for(int i = 0; i < N; i++){
mod += list.get(i);
}
Collections.reverse(list);
for(int i = 0; i < N; i++){
output += list.get(i) * originPow(K, i, mod);
output %= mod;
}
myout(output);
}
//Method addition frame start
static long originPow(long x, long n) {return originPow(x,n,-1);}
static long originPow(long x, long n, long m) {
long ans = 1;
while (n > 0) {
if ((n & 1) == 1){
ans = ans * x;
if(m != -1){ans %= m;}
}
x = x * x;
if(m != -1){x %= m;}
n >>= 1;
}
return ans;
}
//Method addition frame end
}
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