Mai intai trebuie sa te autentifici.
Cod sursa(job #1452599)
Utilizator | Data | 21 iunie 2015 13:46:56 | |
---|---|---|---|
Problema | Potrivirea sirurilor | Scor | 18 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 1.26 kb |
#include <iostream>
#include <string.h>
#include <fstream>
#define NMAX 2000000
#define minim ((1000>N) ? N : 1000)
using namespace std;
ifstream fin ("strmatch.in");
ofstream fout ("strmatch.out");
char A[NMAX],B[NMAX];
int f[NMAX],sol[NMAX],i,j,k,N;
void Citire()
{
fin.getline(A,NMAX);
fin.getline(B,NMAX);
}
void FAILURE(char A[NMAX])
{
int k,lgA=strlen(A);
f[0]=-1;
for(j=1;j<lgA;++j)
{
k=f[j-1];
while(k!=-1 && A[j-1]!=A[k])
k=f[k];
f[j]=k+1;
}
for(i=0;i<lgA;++i)
cout<<f[i]<<" ";
}
void KMP(char A[NMAX], char B[NMAX])
{ i=0;
j=0;
int lgA=strlen(A),lgB=strlen(B);
while(i<lgB)
{
if(A[j]!=B[i])
{
while(j!=-1 && A[j]!=B[i])
j=f[j];
if(j==-1)
++j;
}
if(A[j]==B[i])
++i,++j;
else
++i;
if(j==lgA-1)
j=f[j]+1,++N,sol[N]=i-lgA+1;
}
}
int main()
{
Citire();
FAILURE(A);
KMP(A,B);
fout<<N<<"\n";
for(i=1;i<=minim;++i)
fout<<sol[i]<<" ";
fout<<"\n";
return 0;
}