結果
| 問題 |
No.1645 AB's abs
|
| コンテスト | |
| ユーザー |
nishi5451
|
| 提出日時 | 2021-08-14 10:17:25 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,855 bytes |
| コンパイル時間 | 2,168 ms |
| コンパイル使用メモリ | 78,116 KB |
| 実行使用メモリ | 64,404 KB |
| 最終ジャッジ日時 | 2024-10-04 22:20:43 |
| 合計ジャッジ時間 | 6,752 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 35 WA * 1 |
ソースコード
import java.util.*;
import java.io.*;
public class Main {
static final int INF = 1<<30;
static final long INFL = 1L<<60;
static final int MOD = 1000000007;
static final int MOD2 = 998244353;
static List<List<Integer>> g;
public static void main(String[] args) {
FastScanner fs = new FastScanner();
PrintWriter pw = new PrintWriter(System.out);
// -10000 to 10000
int n = fs.nextInt();
int M_MAX = 20000;
int[] a = fs.nextInts(n);
long[][] dp = new long[n+1][M_MAX+1];
dp[0][10000] = 1;
for(int i = 0; i < n; i++){
for(int j = 0; j <= M_MAX; j++){
if(dp[i][j] != 0){
dp[i+1][j-a[i]] = (dp[i+1][j-a[i]] + dp[i][j]) % MOD2;
dp[i+1][j+a[i]] = (dp[i+1][j+a[i]] + dp[i][j]) % MOD2;
}
}
}
long ans = 0;
for(int i = 1; i <= M_MAX; i++){
ans += Math.abs(i-10000)*dp[n][i];
ans %= MOD2;
}
pw.println(ans);
pw.close();
}
}
class FastScanner {
private InputStream in = System.in;
private byte[] buffer = new byte[1024];
private int length = 0, p = 0;
private boolean hasNextByte() {
if (p < length) return true;
else{
p = 0;
try{
length = in.read(buffer);
}catch(Exception e){
e.printStackTrace();
}
if(length == 0) return false;
}
return true;
}
private int readByte() {
if (hasNextByte() == true) return buffer[p++];
return -1;
}
private static boolean isPrintable(int n) {
return 33 <= n && n <= 126;
}
private void skip() {
while (hasNextByte() && !isPrintable(buffer[p])) p++;
}
public boolean hasNext() {
skip();
return hasNextByte();
}
public String next() {
if(!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int temp = readByte();
while (isPrintable(temp)) {
sb.appendCodePoint(temp);
temp = readByte();
}
return sb.toString();
}
public int nextInt() {
return Math.toIntExact(nextLong());
}
public int[] nextInts(int n) {
int[] ar = new int[n];
for (int i = 0; i < n; i++) ar[i] = nextInt();
return ar;
}
public long[] nextLongs(int n) {
long[] ar = new long[n];
for (int i = 0; i < n; i++) ar[i] = nextLong();
return ar;
}
public long nextLong() {
if(!hasNext()) throw new NoSuchElementException();
boolean minus = false;
int temp = readByte();
if (temp == '-') {
minus = true;
temp = readByte();
}
if (temp < '0' || '9' < temp) throw new NumberFormatException();
long n = 0;
while (isPrintable(temp)) {
if ('0' <= temp && temp <= '9') {
n *= 10;
n += temp - '0';
}
temp = readByte();
}
return minus ? -n : n;
}
public char[] nextChars() {
String s = next();
return s.toCharArray();
}
public char[][] nextCharMat(int h, int w) {
char[][] ar = new char[h][w];
for(int i = 0; i < h; i++){
String s = next();
for(int j = 0; j < w; j++){
ar[i][j] = s.charAt(j);
}
}
return ar;
}
}
nishi5451