結果

問題 No.1773 Love Triangle
ユーザー PCTprobabilityPCTprobability
提出日時 2021-12-05 13:03:55
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 272 ms / 2,000 ms
コード長 5,145 bytes
コンパイル時間 4,988 ms
コンパイル使用メモリ 273,472 KB
実行使用メモリ 5,376 KB
最終ジャッジ日時 2024-07-07 07:48:38
合計ジャッジ時間 17,339 ms
ジャッジサーバーID
(参考情報)
judge1 / judge3
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
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 6 ms
5,376 KB
testcase_04 AC 2 ms
5,376 KB
testcase_05 AC 4 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 3 ms
5,376 KB
testcase_08 AC 2 ms
5,376 KB
testcase_09 AC 2 ms
5,376 KB
testcase_10 AC 3 ms
5,376 KB
testcase_11 AC 6 ms
5,376 KB
testcase_12 AC 2 ms
5,376 KB
testcase_13 AC 2 ms
5,376 KB
testcase_14 AC 1 ms
5,376 KB
testcase_15 AC 5 ms
5,376 KB
testcase_16 AC 2 ms
5,376 KB
testcase_17 AC 5 ms
5,376 KB
testcase_18 AC 159 ms
5,376 KB
testcase_19 AC 3 ms
5,376 KB
testcase_20 AC 16 ms
5,376 KB
testcase_21 AC 2 ms
5,376 KB
testcase_22 AC 16 ms
5,376 KB
testcase_23 AC 9 ms
5,376 KB
testcase_24 AC 20 ms
5,376 KB
testcase_25 AC 38 ms
5,376 KB
testcase_26 AC 2 ms
5,376 KB
testcase_27 AC 2 ms
5,376 KB
testcase_28 AC 6 ms
5,376 KB
testcase_29 AC 2 ms
5,376 KB
testcase_30 AC 121 ms
5,376 KB
testcase_31 AC 26 ms
5,376 KB
testcase_32 AC 13 ms
5,376 KB
testcase_33 AC 6 ms
5,376 KB
testcase_34 AC 5 ms
5,376 KB
testcase_35 AC 4 ms
5,376 KB
testcase_36 AC 37 ms
5,376 KB
testcase_37 AC 2 ms
5,376 KB
testcase_38 AC 233 ms
5,376 KB
testcase_39 AC 230 ms
5,376 KB
testcase_40 AC 235 ms
5,376 KB
testcase_41 AC 248 ms
5,376 KB
testcase_42 AC 250 ms
5,376 KB
testcase_43 AC 237 ms
5,376 KB
testcase_44 AC 235 ms
5,376 KB
testcase_45 AC 231 ms
5,376 KB
testcase_46 AC 247 ms
5,376 KB
testcase_47 AC 235 ms
5,376 KB
testcase_48 AC 247 ms
5,376 KB
testcase_49 AC 241 ms
5,376 KB
testcase_50 AC 236 ms
5,376 KB
testcase_51 AC 240 ms
5,376 KB
testcase_52 AC 236 ms
5,376 KB
testcase_53 AC 240 ms
5,376 KB
testcase_54 AC 240 ms
5,376 KB
testcase_55 AC 256 ms
5,376 KB
testcase_56 AC 252 ms
5,376 KB
testcase_57 AC 253 ms
5,376 KB
testcase_58 AC 272 ms
5,376 KB
testcase_59 AC 266 ms
5,376 KB
testcase_60 AC 263 ms
5,376 KB
testcase_61 AC 264 ms
5,376 KB
testcase_62 AC 255 ms
5,376 KB
testcase_63 AC 258 ms
5,376 KB
testcase_64 AC 254 ms
5,376 KB
testcase_65 AC 268 ms
5,376 KB
testcase_66 AC 265 ms
5,376 KB
testcase_67 AC 269 ms
5,376 KB
testcase_68 AC 260 ms
5,376 KB
testcase_69 AC 263 ms
5,376 KB
testcase_70 AC 271 ms
5,376 KB
testcase_71 AC 251 ms
5,376 KB
testcase_72 AC 251 ms
5,376 KB
testcase_73 AC 260 ms
5,376 KB
testcase_74 AC 249 ms
5,376 KB
testcase_75 AC 259 ms
5,376 KB
testcase_76 AC 247 ms
5,376 KB
testcase_77 AC 245 ms
5,376 KB
testcase_78 AC 2 ms
5,376 KB
testcase_79 AC 4 ms
5,376 KB
testcase_80 AC 7 ms
5,376 KB
testcase_81 AC 146 ms
5,376 KB
testcase_82 AC 111 ms
5,376 KB
testcase_83 AC 55 ms
5,376 KB
testcase_84 AC 67 ms
5,376 KB
testcase_85 AC 87 ms
5,376 KB
testcase_86 AC 22 ms
5,376 KB
testcase_87 AC 45 ms
5,376 KB
testcase_88 AC 11 ms
5,376 KB
testcase_89 AC 34 ms
5,376 KB
testcase_90 AC 141 ms
5,376 KB
testcase_91 AC 101 ms
5,376 KB
testcase_92 AC 13 ms
5,376 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include <bits/stdc++.h>
using namespace std;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif
using ll = long long;
using ld = long double;
using ull = unsigned long long;
#define endl "\n"
typedef pair<int,int> Pii;
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define REP3(i, m, n) for (int i = (m); (i) < int(n); ++ (i))
#define FOR(i,a,b) for(ll i=a;i<=(ll)(b);i++)
#define rep(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define ALL(x) begin(x), end(x)
#define PB push_back
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(s) (s).begin(),(s).end()
#define drep2(i, m, n) for (int i = (m)-1; i >= (n); --i)
#define drep(i, n) drep2(i, n, 0)
#define rever(vec) reverse(vec.begin(), vec.end())
#define sor(vec) sort(vec.begin(), vec.end())
#define fi first
#define se second
#define pb push_back
#define P pair<ll,ll>
#define PQminll priority_queue<ll, vector<ll>, greater<ll>>
#define PQmaxll priority_queue<ll,vector<ll>,less<ll>>
#define PQminP priority_queue<P, vector<P>, greater<P>>
#define PQmaxP priority_queue<P,vector<P>,less<P>>
#define NP next_permutation
typedef string::const_iterator State;
class ParseError {};
//const ll mod = 1000000009;
const ll mod = 998244353;
//const ll mod = 1000000007;
const ll inf = 4100000000000000000ll;
const ld eps = ld(0.00000000000001);
//static const long double pi = 3.141592653589793;
template<class T>void vcin(vector<T> &n){for(int i=0;i<int(n.size());i++) cin>>n[i];}
template<class T,class K>void vcin(vector<T> &n,vector<K> &m){for(int i=0;i<int(n.size());i++) cin>>n[i]>>m[i];}
template<class T>void vcout(vector<T> &n){for(int i=0;i<int(n.size());i++){cout<<n[i]<<" ";}cout<<endl;}
template<class T>void vcin(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cin>>n[i][j];}}}
template<class T>void vcout(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cout<<n[i][j]<<" ";}cout<<endl;}cout<<endl;}
void yes(bool a){cout<<(a?"yes":"no")<<endl;}
void YES(bool a){cout<<(a?"YES":"NO")<<endl;}
void Yes(bool a){cout<<(a?"Yes":"No")<<endl;}
void possible(bool a){ cout<<(a?"possible":"impossible")<<endl; }
void Possible(bool a){ cout<<(a?"Possible":"Impossible")<<endl; }
void POSSIBLE(bool a){ cout<<(a?"POSSIBLE":"IMPOSSIBLE")<<endl; }
template<class T>void print(T a){cout<<a<<endl;}
template<class T>auto min(const T& a){ return *min_element(all(a)); }
template<class T>auto max(const T& a){ return *max_element(all(a)); }
template<class T,class F>void print(pair<T,F> a){cout<<a.fi<<" "<<a.se<<endl;}
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0;}
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0;}
template<class T> void ifmin(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}}
template<class T> void ifmax(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}}
ll fastgcd(ll u,ll v){ll shl=0;while(u&&v&&u!=v){bool eu=!(u&1);bool ev=!(v&1);if(eu&&ev){++shl;u>>=1;v>>=1;}else if(eu&&!ev){u>>=1;}else if(!eu&&ev){v>>=1;}else if(u>=v){u=(u-v)>>1;}else{ll tmp=u;u=(v-u)>>1;v=tmp;}}return !u?v<<shl:u<<shl;}
ll modPow(ll a, ll n, ll mod) { if(mod==1) return 0;ll ret = 1; ll p = a % mod; while (n) { if (n & 1) ret = ret * p % mod; p = p * p % mod; n >>= 1; } return ret; }
vector<ll> divisor(ll x){ vector<ll> ans; for(ll i = 1; i * i <= x; i++){ if(x % i == 0) {ans.push_back(i); if(i*i!=x){ ans.push_back(x / ans[i]);}}}sor(ans); return ans; }
ll pop(ll x){return __builtin_popcountll(x);}
ll poplong(ll x){ll y=-1;while(x){x/=2;y++;}return y;}
P hyou(P a){ll x=fastgcd(abs(a.fi),abs(a.se));a.fi/=x;a.se/=x;if(a.se<0){a.fi*=-1;a.se*=-1;}return a;}
P Pplus(P a,P b){ return hyou({a.fi*b.se+b.fi*a.se,a.se*b.se});}
P Ptimes(P a,ll b){ return hyou({a.fi*b,a.se});}
P Ptimes(P a,P b){ return hyou({a.fi*b.fi,a.se*b.se});}
P Pminus(P a,P b){ return hyou({a.fi*b.se-b.fi*a.se,a.se*b.se});}
P Pgyaku(P a){ return hyou({a.se,a.fi});}

void cincout() {
  ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
  cout<< fixed << setprecision(10);
}
using mint = modint998244353;
template<class T>
int ranks(vector<vector<T>> a){
  ll n=a.size(),m=a[0].size();
  ll x=0;
  for(int i=0;i<min(n,m);i++){
    ll ind=-1;
    for(int j=x;j<n;j++){
      if(a[j][i].val()) ind=j;
    }
    if(ind==-1) continue;
    swap(a[x],a[ind]);
    for(int j=0;j<n;j++){
      if(x==j) continue;
      if(a[j][i].val()){
        mint y=a[j][i]/a[x][i];
        for(int k=0;k<m;k++) a[j][k]-=a[x][k]*y;
      }
    }
    mint z=a[x][i];
    for(int j=0;j<m;j++) a[x][j]/=z;
    x++;
  }
  return x;
}
int main() {
  cincout();
  ll n,m;
  cin>>n>>m;
  vector<vector<mint>> g(n,vector<mint>(n));
  for(int i=0;i<m;i++){
    ll a,b,c;
    cin>>a>>b>>c;
    a--;
    b--;
    c--;
    std::random_device seed;
    std::default_random_engine engine(seed());
    std::uniform_int_distribution<long long> ran(1,998244352);
    mint v=ran(engine);
    g[a][b]+=v;
    g[b][c]+=v;
    g[c][a]+=v;
    g[b][a]-=v;
    g[c][b]-=v;
    g[a][c]-=v;
  }
  cout<<ranks(g)/2<<endl;
}
0