結果
| 問題 |
No.16 累乗の加算
|
| コンテスト | |
| ユーザー |
nCk_cv
|
| 提出日時 | 2016-07-02 23:58:57 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 55 ms / 5,000 ms |
| コード長 | 3,530 bytes |
| コンパイル時間 | 2,302 ms |
| コンパイル使用メモリ | 77,584 KB |
| 実行使用メモリ | 36,788 KB |
| 最終ジャッジ日時 | 2024-06-26 05:15:29 |
| 合計ジャッジ時間 | 3,729 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 14 |
ソースコード
import java.io.*;
import java.math.*;
import java.util.*;
class Main {
static int[] vy = {1,0,-1,0};
static int[] vx = {0,1,0,-1};
static long mod = 1000000007;
public static void main(String[] args) {
FastScanner sc = new FastScanner();
//Scanner sc = new Scanner(System.in);
PrintWriter out = new PrintWriter(System.out);
int x = sc.nextInt();
int n = sc.nextInt();
int[] a = new int[n];
for(int i = 0; i < n; i++) {
a[i] = sc.nextInt();
}
int mod = 1000003;
long sum = 0;
for(int i = 0; i < n; i++) {
sum = (sum + pow(x,a[i],mod)) % mod;
}
System.out.println(sum);
}
static long pow(long x, long n, long mod) {
if(n == 0) return 1;
if(n == 1) return x % mod;
if(n % 2 == 0) {
long ret = pow(x,n/2,mod);
return (ret * ret) % mod;
}
if(n % 2 == 1) {
return (x * pow(x,n-1,mod)) % mod;
}
return 0;
}
static class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
public boolean hasNext() { skipUnprintable(); return hasNextByte();}
public String next() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
if (!hasNext()) throw new NoSuchElementException();
int n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
}
}
nCk_cv