結果

問題 No.1554 array_and_me
ユーザー kiyoshi0205kiyoshi0205
提出日時 2021-06-18 22:58:02
言語 C++14
(gcc 13.2.0 + boost 1.83.0)
結果
AC  
実行時間 72 ms / 2,000 ms
コード長 4,801 bytes
コンパイル時間 2,915 ms
コンパイル使用メモリ 192,744 KB
実行使用メモリ 7,812 KB
最終ジャッジ日時 2023-09-05 00:00:55
合計ジャッジ時間 6,335 ms
ジャッジサーバーID
(参考情報)
judge15 / judge12
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 1 ms
4,380 KB
testcase_01 AC 29 ms
4,384 KB
testcase_02 AC 30 ms
4,384 KB
testcase_03 AC 30 ms
4,384 KB
testcase_04 AC 30 ms
4,380 KB
testcase_05 AC 30 ms
4,380 KB
testcase_06 AC 65 ms
7,168 KB
testcase_07 AC 69 ms
6,960 KB
testcase_08 AC 69 ms
7,092 KB
testcase_09 AC 68 ms
6,964 KB
testcase_10 AC 72 ms
6,956 KB
testcase_11 AC 15 ms
7,812 KB
testcase_12 AC 16 ms
6,980 KB
testcase_13 AC 16 ms
7,064 KB
testcase_14 AC 16 ms
7,084 KB
testcase_15 AC 15 ms
7,232 KB
testcase_16 AC 31 ms
4,380 KB
testcase_17 AC 31 ms
4,380 KB
testcase_18 AC 31 ms
4,380 KB
testcase_19 AC 31 ms
4,380 KB
testcase_20 AC 31 ms
4,380 KB
testcase_21 AC 46 ms
4,380 KB
testcase_22 AC 46 ms
4,384 KB
testcase_23 AC 47 ms
4,380 KB
testcase_24 AC 47 ms
4,384 KB
testcase_25 AC 47 ms
4,384 KB
testcase_26 AC 60 ms
4,380 KB
testcase_27 AC 60 ms
4,380 KB
testcase_28 AC 58 ms
4,384 KB
testcase_29 AC 59 ms
4,384 KB
testcase_30 AC 59 ms
4,380 KB
testcase_31 AC 59 ms
4,380 KB
testcase_32 AC 58 ms
4,384 KB
testcase_33 AC 60 ms
4,384 KB
testcase_34 AC 58 ms
4,380 KB
testcase_35 AC 59 ms
4,384 KB
testcase_36 AC 57 ms
4,384 KB
testcase_37 AC 55 ms
4,380 KB
testcase_38 AC 57 ms
4,384 KB
testcase_39 AC 58 ms
4,384 KB
testcase_40 AC 57 ms
4,380 KB
testcase_41 AC 40 ms
4,380 KB
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
main.cpp: 関数 ‘void solve()’ 内:
main.cpp:161:10: 警告: structured bindings only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
  161 |     auto [now,i]=que.top();que.pop();
      |          ^

ソースコード

diff #

#pragma GCC target("avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
// #include<ext/pb_ds/assoc_container.hpp>
// #include<ext/pb_ds/tree_policy.hpp>
// #include<ext/pb_ds/tag_and_trait.hpp>
// using namespace __gnu_pbds;
// #include<boost/multiprecision/cpp_int.hpp>
// namespace multiprecisioninteger = boost::multiprecision;
// using cint=multiprecisioninteger::cpp_int;
using namespace std;
using ll=long long;
using datas=pair<ll,ll>;
using ddatas=pair<long double,long double>;
using tdata=pair<ll,datas>;
using vec=vector<ll>;
using mat=vector<vec>;
using pvec=vector<datas>;
using pmat=vector<pvec>;
// using llset=tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>;
#define For(i,a,b) for(i=a;i<(ll)b;++i)
#define bFor(i,b,a) for(i=b,--i;i>=(ll)a;--i)
#define rep(i,N) For(i,0,N)
#define rep1(i,N) For(i,1,N)
#define brep(i,N) bFor(i,N,0)
#define brep1(i,N) bFor(i,N,1)
#define all(v) (v).begin(),(v).end()
#define allr(v) (v).rbegin(),(v).rend()
#define vsort(v) sort(all(v))
#define vrsort(v) sort(allr(v))
#define uniq(v) vsort(v);(v).erase(unique(all(v)),(v).end())
#define endl "\n"
#define popcount __builtin_popcountll
#define eb emplace_back
#define print(x) cout<<x<<endl
#define printyes print("Yes")
#define printno print("No")
#define printYES print("YES")
#define printNO print("NO")
#define output(v) do{bool f=0;for(auto outi:v){cout<<(f?" ":"")<<outi;f=1;}cout<<endl;}while(0)
#define matoutput(v) do{for(auto outimat:v)output(outimat);}while(0)
// constexpr ll mod=1000000007;
constexpr ll mod=998244353;
constexpr ll inf=1LL<<60;
constexpr long double eps=1e-9;
const long double PI=acosl(-1);
template<class T,class E> ostream& operator<<(ostream& os,const pair<T,E>& p){return os<<"("<<p.first<<","<<p.second<<")";}
template<class T> ostream& operator<<(ostream& os,const vector<T>& v){
  os<<"{";bool f=false;
  for(auto& x:v){if(f)os<<",";os<<x;f=true;}
  os<<"}";
  return os;
}
template<class T> ostream& operator<<(ostream& os,const set<T>& v){
  os<<"{";bool f=false;
  for(auto& x:v){if(f)os<<",";os<<x;f=true;}
  os<<"}";
  return os;
}
template<class T> ostream& operator<<(ostream& os,const multiset<T>& v){
  os<<"{";bool f=false;
  for(auto& x:v){if(f)os<<",";os<<x;f=true;}
  os<<"}";
  return os;
}
template<class T,class E> ostream& operator<<(ostream& os,const map<T,E>& v){
  os<<"{";bool f=false;
  for(auto& x:v){if(f)os<<",";os<<x;f=true;}
  os<<"}";
  return os;
}
template<class T> inline bool chmax(T& a,const T b){bool x=a<b;if(x)a=b;return x;}
template<class T> inline bool chmin(T& a,const T b){bool x=a>b;if(x)a=b;return x;}
#ifdef DEBUG
void debugg(){cout<<endl;}
template<class T,class... Args>void debugg(const T& x,const Args&... args){cout<<" "<<x;debugg(args...);}
#define debug(...) cout<<__LINE__<<" ["<<#__VA_ARGS__<<"]:",debugg(__VA_ARGS__)
#else
#define debug(...) (void(0))
#endif

inline void startupcpp(void) noexcept{
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout<<fixed<<setprecision(15);
}

ll modinv(ll a,const ll m=mod) noexcept{
  ll b=m,u=1,v=0,t;
  while(b){
    t=a/b;
    a-=t*b; swap(a,b);
    u-=t*v; swap(u,v);
  }
  return (u+m)%m;
}

ll moddevide(const ll a,const ll b) noexcept{return (a*modinv(b))%mod;}

vec modncrlistp,modncrlistm;

ll modncr(const ll n,const ll r) noexcept{
  if(n<r)return 0;
  ll i,size=modncrlistp.size();
  if(size<=n){
    modncrlistp.resize(n+1);
    modncrlistm.resize(n+1);
    if(!size){
      modncrlistp[0]=modncrlistm[0]=1;
      size++;
    }
    For(i,size,n+1)modncrlistp[i]=modncrlistp[i-1]*i%mod;
    modncrlistm[n]=modinv(modncrlistp[n]);
    for(i=n;i>size;--i)modncrlistm[i-1]=modncrlistm[i]*i%mod;
  }
  return modncrlistp[n]*modncrlistm[r]%mod*modncrlistm[n-r]%mod;
}

ll modpow(ll a,ll n,const ll m=mod){
  if(n<0)return 0;
  ll res=1;
  while(n>0){
    if(n&1)res=res*a%m;
    a=a*a%m;
    n>>=1;
  }
  return res;
}

constexpr ll gcd(const ll a,const ll b) noexcept{return (!b)?abs(a):(a%b==0)?abs(b):gcd(b,a%b);}
constexpr ll lcm(const ll a,const ll b) noexcept{return a/gcd(a,b)*b;}

// x/y
struct frac{
  ll x,y;
  frac(ll x,ll y):x(x),y(y){}
  bool operator <(const frac t) const{
    return this->x*t.y<t.x*this->y;
  }
};

ll N,M,K,H,W,A,B,C,D;
string s,t;
ll ans;
void solve(){
  cin>>N>>K;
  vec v(N);
  ll i;
  rep(i,N)cin>>v[i];
  if(N==1){
    print(1);
    return;
  }
  A=accumulate(all(v),0LL);
  ans=1;
  priority_queue<pair<frac,ll>> que;
  rep(i,N)que.emplace(frac(v[i],A),i);
  vec cnt(N,1);
  rep(B,K){
    auto [now,i]=que.top();que.pop();
    debug(now.x,now.y,i);
    (ans*=moddevide(now.x,now.y)*(B+1)%mod)%=mod;
    que.emplace(frac(v[i],(++cnt[i])*A),i);
  }
  print(ans);
}
int main(){
  startupcpp();
int codeforces;cin>>codeforces;while(codeforces--){
  solve();
}
}
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