結果
| 問題 |
No.420 mod2漸化式
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-06-21 00:55:08 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 2 ms / 1,000 ms |
| コード長 | 456 bytes |
| コンパイル時間 | 1,554 ms |
| コンパイル使用メモリ | 166,480 KB |
| 実行使用メモリ | 5,376 KB |
| 最終ジャッジ日時 | 2024-06-22 22:44:29 |
| 合計ジャッジ時間 | 2,520 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 35 |
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/istream:39,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/sstream:38,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/complex:45,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ccomplex:39,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/x86_64-pc-linux-gnu/bits/stdc++.h:54,
from main.cpp:1:
In member function 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>]',
inlined from 'int main()' at main.cpp:18:11:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ostream:202:25: warning: 'n' is used uninitialized [-Wuninitialized]
202 | { return _M_insert(__n); }
| ~~~~~~~~~^~~~~
main.cpp: In function 'int main()':
main.cpp:16:23: note: 'n' was declared here
16 | long long ans=0,x,n;
| ^
ソースコード
#include<bits/stdc++.h>
using namespace std;
long long int combination(long long int a,long long int b){
if(b<0||b>a)return 0;
long long int ans=1;
b=min(b,a-b);
for(int i=0;i<b;i++){
ans*=a-b+i+1;
ans/=i+1;
}
return ans;
}
int main(){
long long ans=0,x,n;
cin>>x;
cerr<<n<<endl;
for(int i=0;i<31;i++){
ans+=(1LL<<i)*combination(30,x-1);
}
cout<<combination(31,x)<<" "<<ans<<endl;
}