結果
| 問題 |
No.1085 桁和の桁和
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-06-20 01:10:41 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,152 bytes |
| コンパイル時間 | 2,450 ms |
| コンパイル使用メモリ | 78,036 KB |
| 実行使用メモリ | 60,468 KB |
| 最終ジャッジ日時 | 2024-07-23 00:43:28 |
| 合計ジャッジ時間 | 7,400 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 31 WA * 4 |
ソースコード
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.NoSuchElementException;
public class Main {
public static void main(String[] args) {
new Main().run();
}
final long MOD=(long)1e9+7;
long zero(char[] cs) {
boolean ok=true;
for (char c:cs) {
ok&=c==0||c=='?';
}
return ok?1:0;
}
void run() {
FastScanner sc=new FastScanner();
char[] cs=sc.next().toCharArray();
int D=sc.nextInt();
if (D==0) {
System.out.println(zero(cs));
return;
}
int sum=0;
int pend=0;
for (char c:cs) {
if (c!='?') sum=(sum+(int)(c-'0'))%9;
else ++pend;
}
long[][] dp=new long[pend+1][9];
dp[0][sum]=1;
for (int i=0;i<pend;++i) {
for (int src=0;src<=8;++src) {
for (int add=0;add<=9;++add) {
int dst=(src+add)%9;
dp[i+1][dst]=(dp[i][src]+dp[i+1][dst])%MOD;
}
}
}
long ans=dp[pend][D%9];
if (D==9) ans=(ans+MOD-zero(cs))%MOD;
System.out.println(ans);
}
void tr(Object...o) {System.out.println(Arrays.deepToString(o));}
}
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;}
public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; 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() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
return (int) nl;
}
public double nextDouble() { return Double.parseDouble(next());}
}