Pagini recente » Cod sursa (job #2415411) | Cod sursa (job #2565327) | Cod sursa (job #1355134) | Cod sursa (job #19253) | Cod sursa (job #2831689)
#include <bits/stdc++.h>
std::ifstream f("abc2.in");
std::ofstream g("abc2.out");
const unsigned int MOD = (1 << 18) - 1;
std::vector <unsigned int> H[MOD];
char s[10000001], word[21];
unsigned int len, Len, hash, ans, offset = 1;
int InH(unsigned int hash) {
unsigned int N = H[hash & MOD].size();
for(unsigned int i = 0;i < N;i++)
if(H[hash & MOD][i] == hash)
return 1;
return 0;
}
void addH(unsigned int hash) {
if(!InH(hash))
H[hash & MOD].emplace_back(hash);
}
void solve() {
f>> s;
while(!f.eof()) {
f >> word;
len = strlen(word), hash = 0;
for(unsigned int i = 0;i < len;i++)
hash = (hash * 3 + (word[i] - 'a'));
addH(hash);
}
hash = 0;
for(unsigned int i = 0;i < len;i++) {
hash = hash * 3 + (s[i] - 'a');
offset *= 3;
}
offset /= 3, Len = strlen(s);
ans += InH(hash);
for(unsigned i = len;i < Len;i++) {
hash = (hash - offset * (s[i - len] - 'a')) * 3 + (s[i] - 'a');
ans += InH(hash);
}
g << ans;
}
int main() {
int T = 1;
for(;T;T--) {
solve();
}
return 0;
}