結果

問題 No.319 happy b1rthday 2 me
ユーザー holeguma
提出日時 2015-12-13 00:33:11
言語 Java
(openjdk 23)
結果
WA  
実行時間 -
コード長 4,411 bytes
コンパイル時間 2,356 ms
コンパイル使用メモリ 79,140 KB
実行使用メモリ 37,068 KB
最終ジャッジ日時 2024-09-15 10:52:26
合計ジャッジ時間 5,022 ms
ジャッジサーバーID
(参考情報)
judge4 / 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 * 2 WA * 2
other AC * 10 WA * 19
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.io.InputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.InputMismatchException;
import java.util.NoSuchElementException;
import java.math.BigInteger;
public class Main{
static PrintWriter out;
static InputReader ir;
static void solve(){
char[] a=minusOne(ir.next().toCharArray());
char[] b=ir.next().toCharArray();
out.println(calc(b)-calc(a)-((a[a.length-1]=='1'&&(a.length==1||a[0]=='2'))?1:0));
}
public static long calc(char[] s){
long ret=0;
long[][][][][] dp=new long[2][2][2][2][2];
dp[0][0][0][0][0]=1;
for(int i=0;i<s.length;i++){
int now=i%2,next=now^1,num=s[i]-'0';
for(int j=0;j<2;j++){
for(int ft=0;ft<2;ft++){
for(int fi=0;fi<2;fi++){
for(int po=0;po<2;po++){
for(int k=0;k<=(j==0?num:9);k++){
int next_j=j|((k==num)?0:1),next_ft=ft|((fi==0&&k==2)?1:0),next_fi=fi|((k==0)?0:1),next_po=((k==1)?1:0);
dp[next][next_j][next_ft][next_fi][next_po]+=dp[now][j][ft][fi][po];
}
}
}
}
}
for(int j=0;j<2;j++){
for(int k=0;k<2;k++){
for(int l=0;l<2;l++){
Arrays.fill(dp[now][j][k][l],0);
}
}
}
}
for(int i=0;i<2;i++){
ret+=dp[s.length%2][i][1][1][1];
}
long[][][] dp2=new long[2][2][2];
dp2[0][0][0]=1;
for(int i=0;i<s.length;i++){
int now=i%2,next=now^1,num=s[i]-'0';
for(int j=0;j<2;j++){
for(int l=0;l<2;l++){
for(int k=0;k<=(j==0?num:9);k++){
int next_j=j|((k==num)?0:1),next_l=((k==1)?1:0);
dp2[next][next_j][next_l]+=dp2[now][j][l];
if(l==1&&k==2) ret+=dp2[now][j][l];
}
}
}
for(int j=0;j<2;j++) Arrays.fill(dp2[now][j],0);
}
if(s.length>=2||s[0]>='2') ret++;
return ret;
}
public static char[] minusOne(char[] s){
char[] ret=new char[s.length];
boolean f=false;
for(int i=s.length-1;i>=0;i--){
if(!f){
if(s[i]!='0'){
ret[i]=(char)(s[i]-1);
f=true;
}
else ret[i]='9';
}
else ret[i]=s[i];
}
return ret;
}
public static void main(String[] args) throws Exception{
ir=new InputReader(System.in);
out=new PrintWriter(System.out);
solve();
out.flush();
}
static class InputReader {
private InputStream in;
private byte[] buffer=new byte[1024];
private int curbuf;
private int lenbuf;
public InputReader(InputStream in) {this.in=in; this.curbuf=this.lenbuf=0;}
public boolean hasNextByte() {
if(curbuf>=lenbuf){
curbuf= 0;
try{
lenbuf=in.read(buffer);
}catch(IOException e) {
throw new InputMismatchException();
}
if(lenbuf<=0) return false;
}
return true;
}
private int readByte(){if(hasNextByte()) return buffer[curbuf++]; else return -1;}
private boolean isSpaceChar(int c){return !(c>=33&&c<=126);}
private void skip(){while(hasNextByte()&&isSpaceChar(buffer[curbuf])) curbuf++;}
public boolean hasNext(){skip(); return hasNextByte();}
public String next(){
if(!hasNext()) throw new NoSuchElementException();
StringBuilder sb=new StringBuilder();
int b=readByte();
while(!isSpaceChar(b)){
sb.appendCodePoint(b);
b=readByte();
}
return sb.toString();
}
public int nextInt() {
if(!hasNext()) throw new NoSuchElementException();
int c=readByte();
while (isSpaceChar(c)) c=readByte();
boolean minus=false;
if (c=='-') {
minus=true;
c=readByte();
}
int res=0;
do{
if(c<'0'||c>'9') throw new InputMismatchException();
res=res*10+c-'0';
c=readByte();
}while(!isSpaceChar(c));
return (minus)?-res:res;
}
public long nextLong() {
if(!hasNext()) throw new NoSuchElementException();
int c=readByte();
while (isSpaceChar(c)) c=readByte();
boolean minus=false;
if (c=='-') {
minus=true;
c=readByte();
}
long res = 0;
do{
if(c<'0'||c>'9') throw new InputMismatchException();
res=res*10+c-'0';
c=readByte();
}while(!isSpaceChar(c));
return (minus)?-res:res;
}
public double nextDouble(){return Double.parseDouble(next());}
public BigInteger nextBigInteger(){return new BigInteger(next());}
public int[] nextIntArray(int n){
int[] a=new int[n];
for(int i=0;i<n;i++) a[i]=nextInt();
return a;
}
public long[] nextLongArray(int n){
long[] a=new long[n];
for(int i=0;i<n;i++) a[i]=nextLong();
return a;
}
public char[][] nextCharMap(int n,int m){
char[][] map=new char[n][m];
for(int i=0;i<n;i++) map[i]=next().toCharArray();
return map;
}
}
}
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