#752113 (C++14) No.1451 集団登校

• 問題: No.1451 集団登校
• ユーザー: t98slider
• 提出日時: 2022-04-07 00:26:30
• 言語: C++14 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 40 ms / 2,000 ms
• コード長: 4,818 bytes
• コンパイル時間: 1,704 ms
• コンパイル使用メモリ: 172,024 KB
• 実行使用メモリ: 5,248 KB
• 最終ジャッジ日時: 2024-11-27 21:18:42
• 合計ジャッジ時間: 4,158 ms
• ジャッジサーバーID （参考情報）: judge5 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 5,248 KB
testcase_01	AC	2 ms; 5,248 KB
testcase_02	AC	2 ms; 5,248 KB
testcase_03	AC	2 ms; 5,248 KB
testcase_04	AC	2 ms; 5,248 KB
testcase_05	AC	2 ms; 5,248 KB
testcase_06	AC	2 ms; 5,248 KB
testcase_07	AC	2 ms; 5,248 KB
testcase_08	AC	26 ms; 5,248 KB
testcase_09	AC	2 ms; 5,248 KB
testcase_10	AC	16 ms; 5,248 KB
testcase_11	AC	11 ms; 5,248 KB
testcase_12	AC	15 ms; 5,248 KB
testcase_13	AC	28 ms; 5,248 KB
testcase_14	AC	40 ms; 5,248 KB
testcase_15	AC	17 ms; 5,248 KB
testcase_16	AC	26 ms; 5,248 KB
testcase_17	AC	20 ms; 5,248 KB
testcase_18	AC	10 ms; 5,248 KB
testcase_19	AC	7 ms; 5,248 KB
testcase_20	AC	35 ms; 5,248 KB
testcase_21	AC	14 ms; 5,248 KB
testcase_22	AC	9 ms; 5,248 KB
testcase_23	AC	4 ms; 5,248 KB
testcase_24	AC	13 ms; 5,248 KB
testcase_25	AC	18 ms; 5,248 KB
testcase_26	AC	24 ms; 5,248 KB
testcase_27	AC	27 ms; 5,248 KB
testcase_28	AC	10 ms; 5,248 KB
testcase_29	AC	18 ms; 5,248 KB

ソースコード

#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define drep(i,j,n) for(int i=0;i<(int)(n-1);i++)for(int j=i+1;j<(int)(n);j++)
#define trep(i,j,k,n) for(int i=0;i<(int)(n-2);i++)for(int j=i+1;j<(int)(n-1);j++)for(int k=j+1;k<(int)(n);k++)
#define codefor int test;scanf("%d",&test);while(test--)
#define INT(...) int __VA_ARGS__;in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__;in(__VA_ARGS__)
#define yes(ans) if(ans)printf("yes\n");else printf("no\n")
#define Yes(ans) if(ans)printf("Yes\n");else printf("No\n")
#define YES(ans) if(ans)printf("YES\n");else printf("NO\n")
#define popcount(v) __builtin_popcountll(v)
#define vector2d(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__))
#define vector3d(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__)))
#define vector4d(type,name,h,w,d,...) vector<vector<vector<vector<type>>>>name(h,vector<vector<vector<type>>>(w,vector<vector<type>>(d,vector<type>(__VA_ARGS__))))
using namespace std;
using ll = long long;
template<class T> using rpriority_queue = priority_queue<T, vector<T>, greater<T>>;
const int MOD=1000000007;
const int MOD2=998244353;
const int INF=1<<30;
const ll INF2=1LL<<60;
void scan(int& a){scanf("%d",&a);}
void scan(long long& a){scanf("%lld",&a);}
template<class T,class L>void scan(pair<T, L>& p){scan(p.first);scan(p.second);}
template<class T,class U,class V>void scan(tuple<T,U,V>& p){scan(get<0>(p));scan(get<1>(p));scan(get<2>(p));}
template<class T, size_t size> void scan(array<T, size>& a){ for(auto&& i : a) scan(i);}
template<class T> void scan(T& a){cin>>a;}
template<class T> void scan(vector<T>& vec){for(auto&& it:vec)scan(it);}
void in(){}
template <class Head, class... Tail> void in(Head& head, Tail&... tail){scan(head);in(tail...);}
void print(const int& a){printf("%d",a);}
void print(const long long& a){printf("%lld",a);}
void print(const double& a){printf("%.15lf",a);}
template<class T,class L>void print(const pair<T, L>& p){print(p.first);putchar(' ');print(p.second);}
template<class T> void print(const T& a){cout<<a;}
template<class T> void print(const vector<T>& vec){if(vec.empty())return;print(vec[0]);for(auto it=vec.begin();++it!= vec.end();){putchar(' ');print(*it);}}
void out(){putchar('\n');}
template<class T> void out(const T& t){print(t);putchar('\n');}
template <class Head, class... Tail> void out(const Head& head,const Tail&... tail){print(head);putchar(' ');out(tail...);}
template<class T> void dprint(const T& a){cerr<<a;}
template<class T> void dprint(const vector<T>& vec){if(vec.empty())return;cerr<<vec[0];for(auto it=vec.begin();++it!= vec.end();){cerr<<" "<<*it;}}
void debug(){cerr<<'\n';}
template<class T> void debug(const T& t){dprint(t);cerr<<endl;}
template <class Head, class... Tail> void debug(const Head& head, const Tail&... tail){dprint(head);cerr<<" ";debug(tail...);}
ll intpow(ll a, ll b){ ll ans = 1; while(b){ if(b & 1) ans *= a; a *= a; b /= 2; } return ans; }
ll modpow(ll a, ll b, ll p){ ll ans = 1; while(b){ if(b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; }
ll modinv(ll a, ll m) {ll b = m, u = 1, v = 0;while (b) {ll t = a / b;a -= t * b; swap(a, b);u -= t * v; swap(u, v);}u %= m;if (u < 0) u += m;return u;}
ll updivide(ll a,ll b){return (a+b-1)/b;}
template<class T> void chmax(T &a,const T b){if(b>a)a=b;}
template<class T> void chmin(T &a,const T b){if(b<a)a=b;}

//Union Add Query
struct dsu{
    using U = long long;
    int n;
    vector<pair<int,U>> dat;
    dsu() : n(0) {}
    dsu(int _n) : n(_n), dat(_n, {-1, 1}) {}
    int merge(int a, int b) {
        assert(0 <= a && a < n);
        assert(0 <= b && b < n);
        int x = leader(a).first, y = leader(b).first;
        if (x == y) return x;
        if (-dat[x].first < -dat[y].first) std::swap(x, y);
        (dat[y].second *= modinv(dat[x].second,MOD))%=MOD;
        if(-dat[x].first == -dat[y].first)(dat[x].second *= (MOD+1)/2)%=MOD;
        else dat[y].second *= 0;
        dat[x].first += dat[y].first;
        dat[y].first = x;
        return x;
    }
    pair<int,U> leader(int a) {
        assert(0 <= a && a < n);
        if (dat[a].first < 0 ) return {a, 1};
        auto p = leader(dat[a].first);
        dat[a].first = p.first;
        (dat[a].second *= p.second)%=MOD;
        return dat[a];
    }
    void add(int a, U v){
        assert(0 <= a && a < n);
        dat[leader(a).first].second += v;
    }
    U get(int a){
        assert(0 <= a && a < n);
        auto p = leader(a);
        return (p.second * dat[p.first].second)%MOD;
    }
};

int main(){
    INT(n,m);
    dsu uf(n);
    int u,v;
    rep(i,m){
        in(u,v);
        u--,v--;
        uf.merge(u,v);
    }
    rep(i,n)out(uf.get(i));
}