結果

問題 No.2409 Strange Werewolves
ユーザー keisuke6keisuke6
提出日時 2023-08-11 21:28:51
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 899 bytes
コンパイル時間 2,241 ms
コンパイル使用メモリ 203,376 KB
実行使用メモリ 19,712 KB
最終ジャッジ日時 2024-04-29 12:17:53
合計ジャッジ時間 3,532 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 34 ms
19,584 KB
testcase_01 AC 34 ms
19,584 KB
testcase_02 AC 35 ms
19,584 KB
testcase_03 WA -
testcase_04 WA -
testcase_05 WA -
testcase_06 AC 37 ms
19,584 KB
testcase_07 WA -
testcase_08 AC 35 ms
19,712 KB
testcase_09 WA -
testcase_10 AC 34 ms
19,584 KB
testcase_11 WA -
testcase_12 AC 34 ms
19,584 KB
testcase_13 WA -
testcase_14 AC 36 ms
19,584 KB
testcase_15 WA -
testcase_16 AC 33 ms
19,584 KB
testcase_17 WA -
権限があれば一括ダウンロードができます
コンパイルメッセージ
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_pair.h:61,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:64,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/specfun.h:45,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/cmath:1935,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/x86_64-pc-linux-gnu/bits/stdc++.h:41,
                 from main.cpp:1:
In function 'std::_Require<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> > std::swap(_Tp&, _Tp&) [with _Tp = long long int]',
    inlined from 'int main()' at main.cpp:28:7:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/move.h:205:11: warning: 'd' may be used uninitialized [-Wmaybe-uninitialized]
  205 |       __a = _GLIBCXX_MOVE(__b);
      |           ^
main.cpp: In function 'int main()':
main.cpp:25:19: note: 'd' was declared here
   25 |         int a,b,c,d;
      |                   ^

ソースコード

diff #

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int mod = 998244353;
vector<long long> fact, fact_inv, inv;
void init_nCk(int SIZE) {
    fact.resize(SIZE + 5);
    fact_inv.resize(SIZE + 5);
    inv.resize(SIZE + 5);
    fact[0] = fact[1] = 1;
    fact_inv[0] = fact_inv[1] = 1;
    inv[1] = 1;
    for (int i = 2; i < SIZE + 5; i++) {
        fact[i] = fact[i - 1] * i % mod;
        inv[i] = mod - inv[mod % i] * (mod / i) % mod;
        fact_inv[i] = fact_inv[i - 1] * inv[i] % mod;
    }
}
long long nCk(int n, int k) {
    if(n < k || n < 0 || k < 0) return 0;
    return fact[n] * (fact_inv[k] * fact_inv[n - k] % mod) % mod;
}
signed main(){
	init_nCk(700000);
	int a,b,c,d;
	cin>>a>>b>>c,d;
	if(c == 0){
		swap(c,d);
		swap(a,b);
	}
	int ans = nCk(a+b-c-1,b-1);
	for(int i=1;i<=b;i++) ans = (ans*i)%mod;
	for(int i=a;i>c;i--) ans = (ans*i)%mod;
	cout<<ans<<endl;
}
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