結果
問題 | No.811 約数の個数の最大化 |
ユーザー | mugen_1337 |
提出日時 | 2020-05-01 08:48:09 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 104 ms / 2,000 ms |
コード長 | 1,232 bytes |
コンパイル時間 | 2,344 ms |
コンパイル使用メモリ | 208,288 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-23 07:53:13 |
合計ジャッジ時間 | 3,593 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 2 ms
6,820 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 91 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 2 ms
6,816 KB |
testcase_05 | AC | 3 ms
6,816 KB |
testcase_06 | AC | 6 ms
6,820 KB |
testcase_07 | AC | 9 ms
6,820 KB |
testcase_08 | AC | 41 ms
6,816 KB |
testcase_09 | AC | 43 ms
6,820 KB |
testcase_10 | AC | 27 ms
6,820 KB |
testcase_11 | AC | 90 ms
6,816 KB |
testcase_12 | AC | 22 ms
6,816 KB |
testcase_13 | AC | 104 ms
6,816 KB |
testcase_14 | AC | 102 ms
6,820 KB |
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:47:11: /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ostream:202:25: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized] 202 | { return _M_insert(__n); } | ~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:34:8: note: 'ans' was declared here 34 | ll ans,cnt=0; | ^~~
ソースコード
#include<bits/stdc++.h> using namespace std; #define ALL(x) x.begin(),x.end() #define rep(i,n) for(int i=0;i<(n);i++) #define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl; #define INF 1000000000 #define mod 1000000007 using ll=long long; const ll LINF=1001002003004005006ll; int dx[]={1,0,-1,0}; int dy[]={0,1,0,-1}; // ll gcd(ll a,ll b){return b?gcd(b,a%b):a;} template<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;} template<class T>bool chmin(T &a,const T &b){if(b<a){a=b;return true;}return false;} map<ll, int> PrimeFactor(ll n){ map<ll,int> ret; for(ll i=2;i*i<=n;i++){ while(n%i==0){ ret[i]++; n/=i; } } if(n!=1) ret[n]=1; return ret; } signed main(){ cin.tie(0); ios::sync_with_stdio(0); ll n,k;cin>>n>>k; auto pfn=PrimeFactor(n); ll ans,cnt=0; for(ll i=1;i<n;i++){ auto mp=PrimeFactor(i); ll t=0; for(auto p:mp){ if(pfn.count(p.first)) t+=min(p.second,pfn[p.first]); } if(t>=k){ ll x=1; for(auto p:mp) x*=(p.second+1ll); if(chmax(cnt,x)) ans=i; } } cout<<ans<<endl; return 0; }