95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
|
#include <cmath>
|
||
|
|
#include <cstdio>
|
||
|
|
#include <cstdlib>
|
||
|
|
#include <iostream>
|
||
|
|
#include <algorithm>
|
||
|
|
#include <string>
|
||
|
|
#include <cstring>
|
||
|
|
#include "../init/BOBHash32.h"
|
||
|
|
#include "../init/BOBHash64.h"
|
||
|
|
#include "../init/params.h"
|
||
|
|
#include "../init/ssummary.h"
|
||
|
|
#include "../include/cmsketch.h"
|
||
|
|
using namespace std;
|
||
|
|
|
||
|
|
cmsketch::cmsketch(int M2,int K):M2(M2),K(K) {ss=new ssummary(K); ss->clear(); bobhash=new BOBHash64(1005);}
|
||
|
|
|
||
|
|
|
||
|
|
void cmsketch::clear()
|
||
|
|
{
|
||
|
|
for (int i=0; i<cm_d; i++)
|
||
|
|
for (int j=0; j<=M2+5; j++) cm[i][j].C=cm[i][j].FP=0;
|
||
|
|
}
|
||
|
|
unsigned long long cmsketch::Hash(string ST)
|
||
|
|
{
|
||
|
|
return (bobhash->run(ST.c_str(),ST.size()));
|
||
|
|
}
|
||
|
|
void cmsketch::Insert(string x)
|
||
|
|
{
|
||
|
|
bool mon=false;
|
||
|
|
int p=ss->find(x);
|
||
|
|
if (p) mon=true;
|
||
|
|
int minv=9999999;
|
||
|
|
unsigned long long H=Hash(x); int FP=(H>>48);
|
||
|
|
for (int j = 0; j < cm_d; j++)
|
||
|
|
{
|
||
|
|
int Hsh = H % (M2 - (2 * cm_d) + 2 * j + 3);
|
||
|
|
int c = cm[j][Hsh].C;
|
||
|
|
// if (cm[j][Hsh].FP == FP)
|
||
|
|
// {
|
||
|
|
if ( c <= ss->getmin())
|
||
|
|
cm[j][Hsh].C++;
|
||
|
|
minv = min(minv, cm[j][Hsh].C);
|
||
|
|
// }
|
||
|
|
|
||
|
|
//else if (cm[j][Hsh].C <= 0)
|
||
|
|
// {
|
||
|
|
// cm[j][Hsh].FP = FP;
|
||
|
|
// cm[j][Hsh].C = 1;
|
||
|
|
// minv = max(minv, 1);
|
||
|
|
//}
|
||
|
|
}
|
||
|
|
//if (!mon)
|
||
|
|
//{
|
||
|
|
if (minv-(ss->getmin())==1 || ss->tot<K)
|
||
|
|
{
|
||
|
|
int i=ss->getid();
|
||
|
|
ss->add2(ss->location(x),i);
|
||
|
|
ss->str[i]=x;
|
||
|
|
ss->sum[i]=minv;
|
||
|
|
ss->link(i,0);
|
||
|
|
while(ss->tot>K)
|
||
|
|
{
|
||
|
|
int t=ss->Right[0];
|
||
|
|
int tmp=ss->head[t];
|
||
|
|
ss->cut(ss->head[t]);
|
||
|
|
ss->recycling(tmp);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// }
|
||
|
|
//else
|
||
|
|
//if (minv>ss->sum[p])
|
||
|
|
//{
|
||
|
|
// int tmp=ss->Left[ss->sum[p]];
|
||
|
|
// ss->cut(p);
|
||
|
|
// if(ss->head[ss->sum[p]]) tmp=ss->sum[p]; //bool
|
||
|
|
// ss->sum[p]=minv;
|
||
|
|
// ss->link(p,tmp);
|
||
|
|
// }
|
||
|
|
}
|
||
|
|
void cmsketch::work()
|
||
|
|
{
|
||
|
|
int CNT=0;
|
||
|
|
for(int i=N;i;i=ss->Left[i])
|
||
|
|
for(int j=ss->head[i];j;j=ss->Next[j]) {q[CNT].x=ss->str[j]; q[CNT].y=ss->sum[j]; CNT++; }
|
||
|
|
sort(q,q+CNT,cmp);
|
||
|
|
}
|
||
|
|
pair<string,int> cmsketch::Query(int k)
|
||
|
|
{
|
||
|
|
return make_pair(q[k].x,q[k].y);
|
||
|
|
}
|
||
|
|
|
||
|
|
//cmsketch::~cmsketch()
|
||
|
|
//{
|
||
|
|
|
||
|
|
//}
|