Cod sursa(job #99288)

Utilizator razvi9Jurca Razvan razvi9 Data 11 noiembrie 2007 09:14:52
Problema Abc2 Scor 0
Compilator cpp Status done
Runda Happy Coding 2007 Marime 1.15 kb
#include<stdio.h>
#include<string.h>
char M[10000010],*N,pi[30],a[50001][30];
int n;

void PI()
{int k=0,i,n=strlen(N);
 pi[0]=pi[1]=0;
 for(i=1;i<n;i++)
 {while(k>0&&N[k]!=N[i])
   k=pi[k];
  if(N[k]==N[i]) k++;
  pi[i+1]=k;}
}
int KMP()
{int n=strlen(N),m=strlen(M),i,k=0,nr=0;
 PI();
 for(i=0;i<m;i++)
 {while(k>0&&N[k]!=M[i])
   k=pi[k];
  if(N[k]==M[i]) k++;
  if(k==n) nr++; }
 return nr;
}
long long num;
int poz(int st,int dr)
{int x=0,y=-1;
 char aux[20];
 while(st<dr)
 {if(strcmp(a[st],a[dr])>0)
   {strcpy(aux,a[st]);
    strcpy(a[st],a[dr]);
    strcpy(a[dr],aux);
    if(x) x=0,y=-1;
    else x=1,y=0;}
  st=st+x,dr=dr+y;}
 return st;
}
void sort(int st,int dr)
{if(st>=dr) return;
 int k=poz(st,dr);
 sort(st,k-1);
 sort(k+1,dr);}
int main()
{freopen("abc2.in","r",stdin);
 freopen("abc2.out","w",stdout);
 scanf(" %s ",M);
 while(!feof(stdin))
 {scanf(" %s ",a[++n]);
 /*
  if(!strstr(a,N))
   {strcat(a,N);
    a[strlen(a)]=' ';
     num=num+KMP();}  */ }
 sort(1,n);
 for(int i=1;i<=n;i++)
 if(strcmp(a[i],a[i-1]))
 {N=a[i];
  num=num+KMP();}
 printf("%lld",num);
 fclose(stdout);
 return 0;}