Aristocracy

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
#define til(n) for(ll i = 0; i < n; i++)

constexpr ll MOD = 1e9+7;

ll fac(ll n) {
    ll total = 1;
    til(n) {
        total = (total * (i + 1)) % MOD;
    }
    return total;
}

int main() {
    cin.tie(0)->sync_with_stdio(false);
    cout.tie(0)->sync_with_stdio(false);
    ll n;
    unordered_map<string,ll> m;
    cin >> n;
    til(n) {
        string s;
        ll _;
        cin >> s >> _;
        m[s]++;
    }
    auto total = fac(n);
    for (auto [k, v] : m) {
        total /= fac(v);
    }
    cout << total << '\n';
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: ACCEPTED

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: ACCEPTED

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: WRONG ANSWER

Test 15

Verdict: WRONG ANSWER

Test 16

Verdict: ACCEPTED

Test 17

Verdict: ACCEPTED