結果

問題 No.1904 Never giving up!
ユーザー llc5pgllc5pg
提出日時 2022-04-15 22:48:12
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 3,621 bytes
コンパイル時間 1,923 ms
コンパイル使用メモリ 197,144 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-12-25 01:56:59
合計ジャッジ時間 2,484 ms
ジャッジサーバーID
(参考情報)
judge3 / judge4
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 9
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
//#include <atcoder/modint>
//using namespace atcoder;
//using mint = modint998244353;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
const int MOD = (1e9+7);
void printmat(const vector<vector<int>>& mat) {
for (auto row : mat) {
for (auto elem : row)
cout << elem << " ";
cout << "\n";
}
}
void printdq(const deque<char>& v) {
for (auto elem : v)
cout << elem << " ";
cout << endl;
}
void printv(const vector<int>& v) {
for (auto elem : v)
cout << elem << " ";
cout << "\n";
}
void printvll(const vector<ll>& v) {
for (auto elem : v)
cout << elem << " ";
cout << endl;
}
void printd(const deque<int>& v) {
for (auto elem : v)
cout << elem << " ";
cout << endl;
}
void printvp(const vector<pair<int,int>>& vp) {
for (auto pr : vp) {
cout << pr.first << ", " << pr.second;
cout << endl;
}
}
void printvs(const vector<set<int>>& vs) {
for (auto row : vs) {
for (auto elem : row)
cout << elem << ", ";
cout << endl;
}
}
void printht(const unordered_map<int, int>& ht) {
for (auto elem : ht)
cout << elem.first << " : " << elem.second << endl;
}
void printmp(const map<int, int>& ht) {
for (auto elem : ht)
cout << elem.first << " : " << elem.second << endl;
}
void printst(const set<int>& st) {
for (auto elem : st)
cout << elem << " ";
cout << endl;
}
bool isPrime(long long n) {
if (n <= 1)
return false;
if (n <= 3)
return true;
if (n % 2 == 0 || n % 3 == 0)
return false;
for (long long i = 5; i * i <= n; i = i + 6)
if (n % i == 0 || n % (i + 2) == 0)
return false;
return true;
}
map<long long, long long> primeFactors(long long n) {
map<long long, long long> ans;
while (n % 2 == 0) {
ans[2]++;
n = n/2;
}
for (long long i = 3; i*i <= (n); i = i + 2) {
while (n % i == 0) {
ans[i]++;
n = n/i;
}
}
if (n > 2)
ans[n]++;
return ans;
}
int find_f(const vector<int>& uf, int i) {
while (uf[i]!=i)
i = uf[i];
return i;
}
void union_f(vector<int>& uf, vector<int>& sz, int a, int b) {
a = find_f(uf, a);
b = find_f(uf, b);
//cout << "a, b = " << a << ", " << b << endl;
if (a==b) return;
if (sz[a] < sz[b]) {
//cout << "sz[a], sz[b] = " << sz[a] << ", " << sz[b] << endl;
//cout << "a, b = " << a << ", " << b << endl;
swap(a,b);
//cout << "a, b = " << a << ", " << b << endl;
}
sz[a] += sz[b];
uf[b] = a;
}
long long modexp(long long b, long long e, long long M) {
if (!e) return 1;
b %= M;
long long x = modexp(b * b % M, e / 2, M);
if (e % 2) {
return b * x % M;
} else {
return x;
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int T=1, caseIdx=0;
//cin >> T;
while (T--) {
caseIdx++;
ll n, x=1;
cin >> n;
vector<ll> v(n);
map<int,int> mp;
for (int i=0; i<n; i++) {
cin >> v[i];
mp[v[i]]++;
x = x*(i+1);
}
//printvll(v);
for (auto it=mp.begin(); it!=mp.end(); it++) {
int m = it->second;
while (m>1) {
x /= m;
m--;
}
}
cout << x << "\n";
//cout << "Case #" << caseIdx << ": " << ans << "\n";
}
}
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