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Cod sursa(job #309028)
#include<fstream>
#include<cstring>
#define MaxN 10000005
#define MaxC 50005
using namespace std;
ifstream fin("abc2.in");
ofstream fout("abc2.out");
int pi[MaxC],N,M,n,k,pos[MaxN];
char A[MaxC],B[MaxN];
void prefix()
{ int i,q=0;
for(i=2,pi[1]=0;i<=N;i++)
{ while(q&&A[i]!=A[q+1])
q=pi[q];
if(A[i]==A[q+1])q++;
pi[i]=q;
}
}
void KMP()
{ int i,q=0;
for(i=1;i<=M;i++)
{ while(q&&A[q+1]!=B[i])
q=pi[q];
if(A[q+1]==B[i]) q++;
if(q==N)
{ q=pi[N];
n++;
pos[n]=i-N;
}
}
}
int main()
{ int i;
fin.getline(B,MaxN);
M=strlen(B);
for(i=M+1;i;i--) B[i]=B[i-1];
B[0]=' ';
while(!fin.eof())
{ fin.getline(A,MaxC);
N=strlen(A);
for(i=N;i;i--) A[i]=A[i-1];
A[0]=' ';
prefix();
KMP();
for(i=0;i<=N;i++)A[i]='\0';
}
sort(pos+1,pos+1+n);
k=0;i=1;
while(i<n)
{ while(pos[i]==pos[i+1]) i++;
while(pos[i]!=pos[i+1]){i++;k++;}
}
fout<<k;
return 0;
}