Mai intai trebuie sa te autentifici.
Cod sursa(job #822261)
| Utilizator | Data | 23 noiembrie 2012 02:36:57 | |
|---|---|---|---|
| Problema | Aho-Corasick | Scor | 55 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 1.28 kb |
#include <cstdio>
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <bitset>
#include <algorithm>
#include <sstream>
#include <iomanip>
#include <cmath>
#include <cstdlib>
#include <ctype.h>
#include <cstring>
#include <ctime>
#include <cassert>
using namespace std;
#define MAXA 1000050
#define MAXB 10050
char A[MAXA], B[MAXB];
int pr[MAXA];
int N, k, nr;
int main() {
freopen("ahocorasick.in", "r", stdin);
freopen("ahocorasick.out","w", stdout);
fgets(A, sizeof(A), stdin);
scanf("%d\n", &N);
while(N--) {
fgets(B, sizeof(B), stdin);
pr[0] = -1;
k = -1;
for(int i = 1; B[i] != '\n' && B[i] != '\0'; i++) {
while(k > -1 && B[i] != B[k + 1])
k = pr[k];
if(B[i] == B[k + 1])
k++;
pr[i] = k;
}
nr = 0;
k = -1;
for(int i = 0; A[i] != '\n' && A[i] != '\0'; i++) {
while(k > -1 && A[i] != B[k + 1])
k = pr[k];
if(A[i] == B[k + 1])
k++;
if(B[k + 1] == '\n' || B[k + 1] == '\0')
nr++;
}
printf("%d\n", nr);
}
return 0;
}
