結果
問題 | No.1189 Sum is XOR |
ユーザー | mugen_1337 |
提出日時 | 2020-08-22 20:48:38 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 23 ms / 2,000 ms |
コード長 | 3,525 bytes |
コンパイル時間 | 1,922 ms |
コンパイル使用メモリ | 201,868 KB |
実行使用メモリ | 11,648 KB |
最終ジャッジ日時 | 2024-10-15 12:20:48 |
合計ジャッジ時間 | 3,205 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 23 ms
11,520 KB |
testcase_01 | AC | 21 ms
11,648 KB |
testcase_02 | AC | 21 ms
11,520 KB |
testcase_03 | AC | 12 ms
11,648 KB |
testcase_04 | AC | 11 ms
11,520 KB |
testcase_05 | AC | 16 ms
11,520 KB |
testcase_06 | AC | 20 ms
11,648 KB |
testcase_07 | AC | 14 ms
11,520 KB |
testcase_08 | AC | 8 ms
11,520 KB |
testcase_09 | AC | 8 ms
11,648 KB |
testcase_10 | AC | 7 ms
11,520 KB |
testcase_11 | AC | 10 ms
11,520 KB |
testcase_12 | AC | 20 ms
11,628 KB |
testcase_13 | AC | 20 ms
11,520 KB |
testcase_14 | AC | 15 ms
11,648 KB |
testcase_15 | AC | 12 ms
11,520 KB |
testcase_16 | AC | 10 ms
11,520 KB |
testcase_17 | AC | 11 ms
11,520 KB |
testcase_18 | AC | 12 ms
11,520 KB |
testcase_19 | AC | 18 ms
11,520 KB |
testcase_20 | AC | 19 ms
11,520 KB |
testcase_21 | AC | 6 ms
11,628 KB |
testcase_22 | AC | 6 ms
11,520 KB |
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 mod 998244353 using ll=long long; const int INF=1000000000; const ll LINF=1001002003004005006ll; int dx[]={1,0,-1,0},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;} struct IOSetup{ IOSetup(){ cin.tie(0); ios::sync_with_stdio(0); cout<<fixed<<setprecision(12); } } iosetup; template<typename T1,typename T2> ostream &operator<<(ostream &os,const pair<T1,T2>&p){ os<<p.first<<" "<<p.second; return os; } template<typename T> ostream &operator<<(ostream &os,const vector<T>&v){ for(int i=0;i<(int)v.size();i++) os<<v[i]<<(i+1==(int)v.size()?"":" "); return os; } template<typename T1,typename T2> istream &operator>>(istream &is,pair<T1,T2>&p){ is>>p.first>>p.second; return is; } template<typename T> istream &operator>>(istream &is,vector<T>&v){ for(T &x:v)is>>x; return is; } template<ll Mod> struct ModInt{ long long x; ModInt():x(0){} ModInt(long long y):x(y>=0?y%Mod:(Mod-(-y)%Mod)%Mod){} ModInt &operator+=(const ModInt &p){ if((x+=p.x)>=Mod) x-=Mod; return *this; } ModInt &operator-=(const ModInt &p){ if((x+=Mod-p.x)>=Mod)x-=Mod; return *this; } ModInt &operator*=(const ModInt &p){ x=(int)(1ll*x*p.x%Mod); return *this; } ModInt &operator/=(const ModInt &p){ (*this)*=p.inverse(); return *this; } ModInt operator-()const{return ModInt(x);} ModInt operator+(const ModInt &p)const{return ModInt(*this)+=p;} ModInt operator-(const ModInt &p)const{return ModInt(*this)-=p;} ModInt operator*(const ModInt &p)const{return ModInt(*this)*=p;} ModInt operator/(const ModInt &p)const{return ModInt(*this)/=p;} ModInt operator==(const ModInt &p)const{return x==p.x;} ModInt operator!=(const ModInt &p)const{return x!=p.x;} ModInt inverse()const{ int a=x,b=Mod,u=1,v=0,t; while(b>0){ t=a/b; swap(a-=t*b,b);swap(u-=t*v,v); } return ModInt(u); } ModInt pow(long long n)const{ ModInt ret(1),mul(x); while(n>0){ if(n&1) ret*=mul; mul*=mul;n>>=1; } return ret; } friend ostream &operator<<(ostream &os,const ModInt &p){return os<<p.x;} friend istream &operator>>(istream &is,ModInt &a){long long t;is>>t;a=ModInt<Mod>(t);return (is);} static int get_mod(){return Mod;} }; using mint=ModInt<mod>; mint cnt[1<<10]; mint dp[1<<10][1<<10]; signed main(){ int n,k;cin>>n>>k; rep(i,n){ int a;cin>>a; cnt[a]+=1; } if(k>=(1<<10)){ cout<<0<<endl; return 0; } dp[0][0]=1; for(int bit=0;bit<(1<<10);bit++)rep(j,k){ int subset=bit; do{ dp[bit][j+1]+=dp[subset][j]*cnt[bit^subset]; subset=(subset-1)&bit; }while(subset!=bit); } mint res=0; for(int bit=0;bit<(1<<10);bit++){ // if(dp[bit][k].x>0){ // cout<<bitset<4>(bit)<<" : "<<dp[bit][k]<<endl; // } res+=dp[bit][k]; } for(int i=1;i<=k;i++)res/=mint(i); cout<<res<<endl; return 0; }