結果

問題 No.2888 Mamehinata
ユーザー 👑 NachiaNachia
提出日時 2024-09-13 21:43:13
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 70 ms / 2,000 ms
コード長 7,142 bytes
コンパイル時間 1,046 ms
コンパイル使用メモリ 92,500 KB
実行使用メモリ 13,056 KB
最終ジャッジ日時 2024-09-13 21:43:19
合計ジャッジ時間 5,736 ms
ジャッジサーバーID
（参考情報） 		judge5 / 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 2 ms
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 2 ms
5,376 KB
testcase_04 AC 2 ms
5,376 KB
testcase_05 AC 2 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 2 ms
5,376 KB
testcase_08 AC 2 ms
5,376 KB
testcase_09 AC 2 ms
5,376 KB
testcase_10 AC 2 ms
5,376 KB
testcase_11 AC 2 ms
5,376 KB
testcase_12 AC 2 ms
5,376 KB
testcase_13 AC 21 ms
7,296 KB
testcase_14 AC 15 ms
5,376 KB
testcase_15 AC 49 ms
11,776 KB
testcase_16 AC 57 ms
11,008 KB
testcase_17 AC 17 ms
5,376 KB
testcase_18 AC 34 ms
9,728 KB
testcase_19 AC 62 ms
12,372 KB
testcase_20 AC 53 ms
11,248 KB
testcase_21 AC 52 ms
11,264 KB
testcase_22 AC 26 ms
6,272 KB
testcase_23 AC 35 ms
7,552 KB
testcase_24 AC 56 ms
10,496 KB
testcase_25 AC 46 ms
9,600 KB
testcase_26 AC 47 ms
9,088 KB
testcase_27 AC 27 ms
6,172 KB
testcase_28 AC 12 ms
5,376 KB
testcase_29 AC 25 ms
6,948 KB
testcase_30 AC 62 ms
11,944 KB
testcase_31 AC 52 ms
10,720 KB
testcase_32 AC 36 ms
8,448 KB
testcase_33 AC 49 ms
9,984 KB
testcase_34 AC 41 ms
8,960 KB
testcase_35 AC 35 ms
8,192 KB
testcase_36 AC 69 ms
12,772 KB
testcase_37 AC 70 ms
13,056 KB
testcase_38 AC 21 ms
6,144 KB
testcase_39 AC 61 ms
11,136 KB
testcase_40 AC 70 ms
12,928 KB
testcase_41 AC 13 ms
5,376 KB
testcase_42 AC 61 ms
11,520 KB
testcase_43 AC 49 ms
10,756 KB
testcase_44 AC 55 ms
11,776 KB
testcase_45 AC 61 ms
12,928 KB
testcase_46 AC 10 ms
5,376 KB
testcase_47 AC 54 ms
11,520 KB
testcase_48 AC 47 ms
12,928 KB
testcase_49 AC 11 ms
5,504 KB
testcase_50 AC 33 ms
10,880 KB
testcase_51 AC 3 ms
5,376 KB
testcase_52 AC 2 ms
5,376 KB
testcase_53 AC 6 ms
5,376 KB
testcase_54 AC 2 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 # 

#ifdef NACHIA
#define _GLIBCXX_DEBUG
#else
#define NDEBUG
#endif
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using i64 = long long;
using u64 = unsigned long long;
#define rep(i,n) for(int i=0; i<int(n); i++)
const i64 INF = 1001001001001001001;
template<typename A> void chmin(A& l, const A& r){ if(r < l) l = r; }
template<typename A> void chmax(A& l, const A& r){ if(l < r) l = r; }
#include <atcoder/modint>
using Modint = atcoder::static_modint<998244353>;
#include <utility>

namespace nachia{

template<class Elem>
class CsrArray{
public:
    struct ListRange{
        using iterator = typename std::vector<Elem>::iterator;
        iterator begi, endi;
        iterator begin() const { return begi; }
        iterator end() const { return endi; }
        int size() const { return (int)std::distance(begi, endi); }
        Elem& operator[](int i) const { return begi[i]; }
    };
    struct ConstListRange{
        using iterator = typename std::vector<Elem>::const_iterator;
        iterator begi, endi;
        iterator begin() const { return begi; }
        iterator end() const { return endi; }
        int size() const { return (int)std::distance(begi, endi); }
        const Elem& operator[](int i) const { return begi[i]; }
    };
private:
    int m_n;
    std::vector<Elem> m_list;
    std::vector<int> m_pos;
public:
    CsrArray() : m_n(0), m_list(), m_pos() {}
    static CsrArray Construct(int n, std::vector<std::pair<int, Elem>> items){
        CsrArray res;
        res.m_n = n;
        std::vector<int> buf(n+1, 0);
        for(auto& [u,v] : items){ ++buf[u]; }
        for(int i=1; i<=n; i++) buf[i] += buf[i-1];
        res.m_list.resize(buf[n]);
        for(int i=(int)items.size()-1; i>=0; i--){
            res.m_list[--buf[items[i].first]] = std::move(items[i].second);
        }
        res.m_pos = std::move(buf);
        return res;
    }
    static CsrArray FromRaw(std::vector<Elem> list, std::vector<int> pos){
        CsrArray res;
        res.m_n = pos.size() - 1;
        res.m_list = std::move(list);
        res.m_pos = std::move(pos);
        return res;
    }
    ListRange operator[](int u) { return ListRange{ m_list.begin() + m_pos[u], m_list.begin() + m_pos[u+1] }; }
    ConstListRange operator[](int u) const { return ConstListRange{ m_list.begin() + m_pos[u], m_list.begin() + m_pos[u+1] }; }
    int size() const { return m_n; }
    int fullSize() const { return (int)m_list.size(); }
};

} // namespace nachia

namespace nachia{
    
std::vector<int> BfsDistance(const nachia::CsrArray<int>& adj, const std::vector<int>& start){
    std::vector<int> dist(adj.size(), -1), bfs(adj.size());
    int p1 = 0;
    for(int s : start) if(dist[s] == -1){
        dist[s] = 0;
        bfs[p1++] = s;
    }
    for(int i=0; i<p1; i++){
        int p = bfs[i];
        for(int nx : adj[p]) if(dist[nx] == -1){
            dist[nx] = dist[p] + 1;
            bfs[p1++] = nx;
        }
    }
    return dist;
}

} // namespace nachia
#include <cassert>

namespace nachia{


struct Graph {
public:
    struct Edge{
        int from, to;
        void reverse(){ std::swap(from, to); }
        int xorval() const { return from ^ to; }
    };
    Graph(int n = 0, bool undirected = false, int m = 0) : m_n(n), m_e(m), m_isUndir(undirected) {}
    Graph(int n, const std::vector<std::pair<int, int>>& edges, bool undirected = false) : m_n(n), m_isUndir(undirected){
        m_e.resize(edges.size());
        for(std::size_t i=0; i<edges.size(); i++) m_e[i] = { edges[i].first, edges[i].second };
    }
    template<class Cin>
    static Graph Input(Cin& cin, int n, bool undirected, int m, bool offset = 0){
        Graph res(n, undirected, m);
        for(int i=0; i<m; i++){
            int u, v; cin >> u >> v;
            res[i].from = u - offset;
            res[i].to = v - offset;
        }
        return res;
    }
    int numVertices() const noexcept { return m_n; }
    int numEdges() const noexcept { return int(m_e.size()); }
    int addNode() noexcept { return m_n++; }
    int addEdge(int from, int to){ m_e.push_back({ from, to }); return numEdges() - 1; }
    Edge& operator[](int ei) noexcept { return m_e[ei]; }
    const Edge& operator[](int ei) const noexcept { return m_e[ei]; }
    Edge& at(int ei) { return m_e.at(ei); }
    const Edge& at(int ei) const { return m_e.at(ei); }
    auto begin(){ return m_e.begin(); }
    auto end(){ return m_e.end(); }
    auto begin() const { return m_e.begin(); }
    auto end() const { return m_e.end(); }
    bool isUndirected() const noexcept { return m_isUndir; }
    void reverseEdges() noexcept { for(auto& e : m_e) e.reverse(); }
    void contract(int newV, const std::vector<int>& mapping){
        assert(numVertices() == int(mapping.size()));
        for(int i=0; i<numVertices(); i++) assert(0 <= mapping[i] && mapping[i] < newV);
        for(auto& e : m_e){ e.from = mapping[e.from]; e.to = mapping[e.to]; }
        m_n = newV;
    }
    std::vector<Graph> induce(int num, const std::vector<int>& mapping) const {
        int n = numVertices();
        assert(n == int(mapping.size()));
        for(int i=0; i<n; i++) assert(-1 <= mapping[i] && mapping[i] < num);
        std::vector<int> indexV(n), newV(num);
        for(int i=0; i<n; i++) if(mapping[i] >= 0) indexV[i] = newV[mapping[i]]++;
        std::vector<Graph> res; res.reserve(num);
        for(int i=0; i<num; i++) res.emplace_back(newV[i], isUndirected());
        for(auto e : m_e) if(mapping[e.from] == mapping[e.to] && mapping[e.to] >= 0) res[mapping[e.to]].addEdge(indexV[e.from], indexV[e.to]);
        return res;
    }
    CsrArray<int> getEdgeIndexArray(bool undirected) const {
        std::vector<std::pair<int, int>> src;
        src.reserve(numEdges() * (undirected ? 2 : 1));
        for(int i=0; i<numEdges(); i++){
            auto e = operator[](i);
            src.emplace_back(e.from, i);
            if(undirected) src.emplace_back(e.to, i);
        }
        return CsrArray<int>::Construct(numVertices(), src);
    }
    CsrArray<int> getEdgeIndexArray() const { return getEdgeIndexArray(isUndirected()); }
    CsrArray<int> getAdjacencyArray(bool undirected) const {
        std::vector<std::pair<int, int>> src;
        src.reserve(numEdges() * (undirected ? 2 : 1));
        for(auto e : m_e){
            src.emplace_back(e.from, e.to);
            if(undirected) src.emplace_back(e.to, e.from);
        }
        return CsrArray<int>::Construct(numVertices(), src);
    }
    CsrArray<int> getAdjacencyArray() const { return getAdjacencyArray(isUndirected()); }
private:
    int m_n;
    std::vector<Edge> m_e;
    bool m_isUndir;
};

} // namespace nachia
using namespace std;

void testcase(){
    int N, M; cin >> N >> M;
    auto graph = nachia::Graph::Input(cin, N, true, M, 1);
    auto bfsd = nachia::BfsDistance(graph.getAdjacencyArray(), {{0}});
    vector<int> ans(N+1);
    rep(i,N) if(bfsd[i] >= 0) ans[bfsd[i]]++;
    if(ans[1] != 0) rep(i,N-1) ans[i+2] += ans[i];
    rep(i,N) cout << ans[i+1] << "\n";
}

int main(){
    ios::sync_with_stdio(false); cin.tie(nullptr);
    testcase();
    return 0;
}
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