Cod sursa(job #101283)

Utilizator mgntMarius B mgnt Data 13 noiembrie 2007 12:02:19
Problema Abc2 Scor 0
Compilator cpp Status done
Runda Happy Coding 2007 Marime 1.7 kb
#include <iostream>
#include <fstream>
#include <cstdio>
#include <cstdlib>
using namespace std;

int const MaxT = 10000000;
int const MaxD = 50000;
int const MaxC = 20;

static char Text   [1+MaxT];
static char Cuvant [1+MaxC];

class Copac {
public:
   Copac() { p[0] = 0; p [1] = 0; p[2] = 0;}
   ~Copac() {
    if (p [0]) delete p [0];
    if (p [1]) delete p [1];
    if (p [2]) delete p [2];
   }
  void Adauga(char * cuvant) {
    Copac ** x = p;
    Copac * y;
    while (4 != (*cuvant)) {
      y = x[(*cuvant)];
      if(0 == y) {
        y = new Copac;
        x[(*cuvant)] = y;
      }
      x = y->p;
      ++ cuvant;
    }
  }
  bool Cauta(char * cuvant) {
    Copac ** x = p;
    Copac * y;
    while (4 != (*cuvant)) {
      y = x[(*cuvant)];
      if(0 == y) return false;
      x = y->p;
      ++ cuvant;
    }
    return true;
  }
private:
  Copac * p [3];
};


int main () {
  int i, n, m, cont;
  FILE * fin = fopen("abc2.in", "r");
  i = 0;
  fgets(Text, 1+MaxT, fin);
  n=(int)strlen(Text);
  for(i=0;i<n;i++) Text[i]-='a';

  n = i;
  Copac cop;
  i = 0;

  Cuvant[0]='\0';
  fgets(Cuvant, 1+MaxC, fin);
  m=(int)strlen(Cuvant);
  if(0<m) {
    for(i=0;i<m;i++) Cuvant[i]-='a';
    Cuvant[m]=4;
    cop.Adauga(Cuvant);
  }
  
  while(true) {
    Cuvant[0]='\0';
    fgets(Cuvant, 1+MaxC, fin);
    if('\0' == Cuvant[0]) break;
    for(i=0;i<m;i++) Cuvant[i]-='a';
    Cuvant[m]=4;
    cop.Adauga(Cuvant);
  }
  
  cont = 0;
  if(0 != m) {
    for(i = n-m; i >= 0; i --) {
      Text[i+m] = 4;
      if(cop.Cauta(&Text[i])) ++ cont;
    }
  }
  FILE * fout = fopen("abc2.out", "w");
  fprintf(fout, "%d\n", cont);
  return 0;
}