Pagini recente » Cod sursa (job #129441) | Cod sursa (job #1170240) | Cod sursa (job #3039499) | Cod sursa (job #2264909) | Cod sursa (job #2239826)
#include <fstream>
#include<vector>
#include<cstring>
const int prim = 6666631;
using namespace std;
ifstream fin("abc2.in");
ofstream fout("abc2.out");
char text[10000002], word[21];
vector<long long> Hash[prim];
long long pow3[21], cod, key, dim, n,m, match = 0, i, j;
int main()
{
pow3[0] = 1;
for( i = 1; i<=21; ++i) pow3[i] = pow3[i-1]*3;
fin >> text;
m = strlen(text);
while(fin >> (word))
{
n = strlen(word);
cod = 0;
for(i = 0; i<n; ++i) cod += (word[i] - 'a')*pow3[i];
Hash[cod%prim].push_back(cod);
}
cod = 0;
for( i = 0; i<n; ++i){
cod+=(text[i] - 'a')*pow3[i];
}
for(; i<m; ++i){
key = cod%prim;
dim = Hash[key].size();
for( j = 0; j<dim; ++j){
if(Hash[key][j]==cod){
match++;
break;
}
}
cod/=3;
cod+=pow3[n-1]*(text[i]-'a');
}
key = cod%prim;
dim = Hash[key].size();
for(i = 0; i<dim; ++i){
if(Hash[key][i]==cod){
match++;
break;
}
}
fout << match;
return 0;
}