結果
| 問題 |
No.430 文字列検索
|
| コンテスト | |
| ユーザー |
 threepipes_s
|
| 提出日時 | 2016-10-28 20:11:12 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 552 ms / 2,000 ms |
| コード長 | 8,581 bytes |
| コンパイル時間 | 2,575 ms |
| コンパイル使用メモリ | 100,428 KB |
| 実行使用メモリ | 74,820 KB |
| 最終ジャッジ日時 | 2024-11-10 00:12:21 |
| 合計ジャッジ時間 | 7,728 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge1 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 14 |
ソースコード
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.Closeable;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Random;
import java.util.Scanner;
import java.util.TreeMap;
public class Main {
static ContestScanner in;static Writer out;static StringBuilder sb=new StringBuilder();
public static void main(String[] args)
{try{in=new ContestScanner();out=new Writer();Main solve=new Main();solve.solve();
in.close();out.flush();out.close();}catch(IOException e){e.printStackTrace();}}
static void dump(int[]a){sb.setLength(0);for(int i=0;i<a.length;i++)
sb.append(a[i]).append("\t");out.println(sb.toString().trim());}
static void dump(int[]a,int n){for(int i=0;i<a.length;i++)out.printf("%"+n+"d ",a[i]);out.println();}
static void dump(long[]a){for(int i=0;i<a.length;i++)out.print(a[i]+" ");out.println();}
static long pow(long a,int n){long r=1;while(n>0){if((n&1)==1)r*=a;a*=a;n>>=1;}return r;}
static String itob(int a,int l){return String.format("%"+l+"s",Integer.toBinaryString(a)).replace(' ','0');}
static void sort(int[]a){m_sort(a,0,a.length,new int[a.length]);}
static void sort(int[]a,int l){m_sort(a,0,l,new int[l]);}
static void sort(int[]a,int l,int[]buf){m_sort(a,0,l,buf);}
static void sort(int[]a,int s,int l,int[]buf){m_sort(a,s,l,buf);}
static void m_sort(int[]a,int s,int sz,int[]b)
{if(sz<7){for(int i=s;i<s+sz;i++)for(int j=i;j>s&&a[j-1]>a[j];j--)swap(a, j, j-1);return;}
m_sort(a,s,sz/2,b);m_sort(a,s+sz/2,sz-sz/2,b);int x=s;int l=s,r=s+sz/2;final int le=s+sz/2,re=s+sz;
while(l<le&&r<re){if(a[l]>a[r])b[x++]=a[r++];else b[x++]=a[l++];}
while(r<re)b[x++]=a[r++];while(l<le)b[x++]=a[l++];for(int i=s;i<s+sz;i++)a[i]=b[i];
} /* qsort(3.5s)<<msort(9.5s)<<<shuffle+qsort(17s)<Arrays.sort(Integer)(20s) */
static void sort(long[]a){m_sort(a,0,a.length,new long[a.length]);}
static void sort(long[]a,int l){m_sort(a,0,l,new long[l]);}
static void sort(long[]a,int l,long[]buf){m_sort(a,0,l,buf);}
static void sort(long[]a,int s,int l,long[]buf){m_sort(a,s,l,buf);}
static void m_sort(long[]a,int s,int sz,long[]b)
{if(sz<7){for(int i=s;i<s+sz;i++)for(int j=i;j>s&&a[j-1]>a[j];j--)swap(a, j, j-1);return;}
m_sort(a,s,sz/2,b);m_sort(a,s+sz/2,sz-sz/2,b);int x=s;int l=s,r=s+sz/2;final int le=s+sz/2,re=s+sz;
while(l<le&&r<re){if(a[l]>a[r])b[x++]=a[r++];else b[x++]=a[l++];}
while(r<re)b[x++]=a[r++];while(l<le)b[x++]=a[l++];for(int i=s;i<s+sz;i++)a[i]=b[i];}
static void swap(long[]a,int i,int j){final long t=a[i];a[i]=a[j];a[j]=t;}
static void swap(int[]a,int i,int j){final int t=a[i];a[i]=a[j];a[j]=t;}
static int binarySearchSmallerMax(int[]a,int v)// get maximum index which a[idx]<=v
{int l=-1,r=a.length-1,s=0;while(l<=r){int m=(l+r)/2;if(a[m]>v)r=m-1;else{l=m+1;s=m;}}return s;}
static int binarySearchSmallerMax(int[]a,int v,int l,int r)
{int s=-1;while(l<=r){int m=(l+r)/2;if(a[m]>v)r=m-1;else{l=m+1;s=m;}}return s;}
List<Integer>[]randomTree(int n,Random r){List<Integer>[]g=graph(n);
for(int i=1;i<n;i++){int p=r.nextInt(i);g[p].add(i);g[i].add(p);}return g;}
@SuppressWarnings("unchecked")
static List<Integer>[]graph(int n){List<Integer>[]g=new List[n];
for(int i=0;i<n;i++)g[i]=new ArrayList<>();return g;}
void solve() throws NumberFormatException, IOException{
char[] s = in.nextToken().toCharArray();
int m = in.nextInt();
char[][] t = new char[m][];
long[] val = new long[s.length];
int maxLen = 0;
for(int i=0; i<s.length; i++){
val[i] = s[i]-'A'+1;
}
for(int i=0; i<m; i++){
t[i] = in.nextToken().toCharArray();
maxLen = Math.max(maxLen, t[i].length);
}
// RollingHash rh = new RollingHash(s.length*10, 10);
long[] stack = new long[s.length*10];
long[] pow = initPow(10);
// long[] inv = initInv(10);
int idx = 0;
maxLen = Math.min(maxLen, s.length);
for(int i=1; i<=maxLen; i++){
long hash = 0;
for(int j=0; j<i; j++){
hash = hash*base%mod;
hash = (hash+val[j])%mod;
}
stack[idx++] = hash;
for(int j=i; j<s.length; j++){
hash = hash*base%mod;
hash = (hash-val[j-i]*pow[i]%mod+mod)%mod + val[j];
stack[idx++] = hash;
}
}
Arrays.sort(stack, 0, idx);
OrderedMultiSet<Long> ms = new OrderedMultiSet<>();
for(int i=0; i<idx; i++) ms.add(stack[i]);
int ans = 0;
for(int i=0; i<m; i++){
long hash = 0;
for(int j=0; j<t[i].length; j++){
hash = hash*base%mod;
hash = (hash+t[i][j]-'A'+1)%mod;
}
ans += ms.get(hash);
}
System.out.println(ans);
}
final static long mod = 2078526727;
final static long base = 257; // larger than 1byte prime
long[] initPow(int len){
long[] pow = new long[len+1];
pow[0] = 1;
for(int i=1; i<=len; i++){
pow[i] = pow[i-1]*base%mod;
}
return pow;
}
long[] initInv(int len){
long[] inv = new long[len+1];
inv[0] = 1;
final long b = modinv(base, mod);
for(int i=1; i<=len; i++){
inv[i] = inv[i-1]*b%mod;
}
return inv;
}
long modinv(long n, long mod){
return modpow(n, mod-2, mod);
}
long modpow(long n, long a, long mod){
long res = 1;
while(a > 0){
if((a&1)==1) res = res*n%mod;
n = n*n%mod;
a >>= 1;
}
return res;
}
}
@SuppressWarnings("serial")
class MultiSet<T> extends HashMap<T, Integer>{
@Override public Integer get(Object key){return containsKey(key)?super.get(key):0;}
public void add(T key,int v){put(key,get(key)+v);}
public void add(T key){put(key,get(key)+1);}
public void sub(T key){final int v=get(key);if(v==1)remove(key);else put(key,v-1);}
public MultiSet<T> merge(MultiSet<T> set)
{MultiSet<T>s,l;if(this.size()<set.size()){s=this;l=set;}else{s=set;l=this;}
for(Entry<T,Integer>e:s.entrySet())l.add(e.getKey(),e.getValue());return l;}
}
@SuppressWarnings("serial")
class OrderedMultiSet<T> extends TreeMap<T, Integer>{
@Override public Integer get(Object key){return containsKey(key)?super.get(key):0;}
public void add(T key,int v){put(key,get(key)+v);}
public void add(T key){put(key,get(key)+1);}
public void sub(T key){final int v=get(key);if(v==1)remove(key);else put(key,v-1);}
public OrderedMultiSet<T> merge(OrderedMultiSet<T> set)
{OrderedMultiSet<T>s,l;if(this.size()<set.size()){s=this;l=set;}else{s=set;l=this;}
while(!s.isEmpty()){l.add(s.firstEntry().getKey(),s.pollFirstEntry().getValue());}return l;}
}
class Pair implements Comparable<Pair>{
int a,b;final int hash;Pair(int a,int b){this.a=a;this.b=b;hash=(a<<16|a>>16)^b;}
public boolean equals(Object obj){Pair o=(Pair)(obj);return a==o.a&&b==o.b;}
public int hashCode(){return hash;}
public int compareTo(Pair o){if(a!=o.a)return a<o.a?-1:1;else if(b!=o.b)return b<o.b?-1:1;return 0;}
@Override
public String toString() {
return String.format("(%d, %d)", a, b);
}
}
class Timer{
long time;public void set(){time=System.currentTimeMillis();}
public long stop(){return time=System.currentTimeMillis()-time;}
public void print(){System.out.println("Time: "+(System.currentTimeMillis()-time)+"ms");}
@Override public String toString(){return"Time: "+time+"ms";}
}
class Writer extends PrintWriter{
public Writer(String filename)throws IOException
{super(new BufferedWriter(new FileWriter(filename)));}
public Writer()throws IOException{super(System.out);}
}
class ContestScanner implements Closeable{
private BufferedReader in;private int c=-2;
public ContestScanner()throws IOException
{in=new BufferedReader(new InputStreamReader(System.in));}
public ContestScanner(String filename)throws IOException
{in=new BufferedReader(new InputStreamReader(new FileInputStream(filename)));}
public String nextToken()throws IOException {
StringBuilder sb=new StringBuilder();
while((c=in.read())!=-1&&Character.isWhitespace(c));
while(c!=-1&&!Character.isWhitespace(c)){sb.append((char)c);c=in.read();}
return sb.toString();
}
public String readLine()throws IOException{
StringBuilder sb=new StringBuilder();if(c==-2)c=in.read();
while(c!=-1&&c!='\n'&&c!='\r'){sb.append((char)c);c=in.read();}
return sb.toString();
}
public long nextLong()throws IOException,NumberFormatException
{return Long.parseLong(nextToken());}
public int nextInt()throws NumberFormatException,IOException
{return(int)nextLong();}
public double nextDouble()throws NumberFormatException,IOException
{return Double.parseDouble(nextToken());}
public void close() throws IOException {in.close();}
}