#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>
#define ull unsigned long long
#define pll pair<ll, ll>
#define mp make_pair
#define ll long long
#define pb push_back
#define deb(x) cout << #x << " = " << x << endl
#define all(x) x.begin(), x.end()
#define ld long double
const ll mod1 = (ll)1e9 + 7;
const ll mod2 = (ll)1e9 + 9;
const ll BASE = 47;
const ll inf = (ll)1e18;
const long double e = 2.718281828459;
const long double pi = 3.141592653;
const ld EPS = 1e-9;
using namespace std;
template <class T>
istream& operator>>(istream &in, vector<T> &arr) {
for (T &cnt : arr) {
in >> cnt;
}
return in;
};
ll get(char c) {
if (c <= 'c') {
return 2;
}
if (c <= 'f') {
return 3;
}
if (c <= 'i') {
return 4;
}
if (c <= 'l') {
return 5;
}
if (c <= 'o') {
return 6;
}
if (c <= 's') {
return 7;
}
if (c <= 'v') {
return 8;
}
return 9;
}
void solve() {
ll n;
cin >> n;
map<ll, ll> h;
for (int i = 0; i < n; i++) {
string s;
cin >> s;
ll hash = 0;
for (auto c : s) {
hash = (hash * BASE + get(c)) % mod1;
}
h[hash]++;
}
string s;
cin >> s;
ll cnt = 0;
for (auto c : s) {
cnt = (cnt * BASE + c - '0') % mod1;
}
cout << h[cnt];
}
int main() {
#ifndef LOCAL
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#else
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
cout.precision(30);
ll seed = time(0);
//cerr << "Seed: " << seed << "\n";
srand(seed);
solve();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
512 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
7 ms |
896 KB |
Output is correct |
5 |
Correct |
3 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
640 KB |
Output is correct |
8 |
Correct |
7 ms |
896 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
768 KB |
Output is correct |