結果
問題 | No.416 旅行会社 |
ユーザー | daleksprinter |
提出日時 | 2018-10-23 14:18:36 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,730 bytes |
コンパイル時間 | 1,646 ms |
コンパイル使用メモリ | 124,036 KB |
実行使用メモリ | 32,944 KB |
最終ジャッジ日時 | 2024-11-19 04:06:24 |
合計ジャッジ時間 | 6,976 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
ソースコード
#include <set> #include <map> #include <list> #include <stack> #include <cmath> #include <ctime> #include <cstdio> #include <vector> #include <string> #include <bitset> #include <cctype> #include <cstdlib> #include <cstring> #include <utility> #include <numeric> #include <complex> #include <sstream> #include <fstream> #include <iomanip> #include <cassert> #include <iostream> #include <iterator> #include <algorithm> using namespace std; /* macro */ #define rep(i,a,b) for(int i=a;i<b;i++) #define revrep(i,a,b) for(int i = a; i > b; i--) #define int long long #define exist(s,e) ((s).find(e)!=(s).end()) #define all(v) (v).begin(), (v).end() #define each(s,itr) for(auto (itr) = s.begin(); (itr) != s.end(); (itr)++) #define sum(v) accumulate(all(v), (0LL)) /* alias */ template<class T> using vec = vector<T>; typedef vector<int> vi; typedef pair<int, int> pi; /* constant */ const int inf = 1001001001; const int mod = 1e6; int dx[8]={1,0,-1,0,-1,1,-1,1}; int dy[8]={0,1,0,-1,-1,-1,1,1}; /* io_method */ int input(){int tmp;cin >> tmp;return tmp;} string raw_input(){string tmp;cin >> tmp;return tmp;} string readline(){string s;getline(cin, s);return s;} template<class T> void printx(T n){cout << n;} template<class T, class U> void printx(pair<T, U> p){cout << "(" << p.first << "," << p.second << ")";} template<class T> void printx(vector<T> v){cout << "{";rep(i,0,v.size()){printx(v[i]);if(i != v.size()-1)printx(",");}cout << "}";} template<class T> void print(T n){printx(n);cout << endl;} template<class T> void print(set<T> s){cout << "{";each(s, e){if(e != s.begin()) printx(",");printx(*e);}cout << "}" << endl;} template<class T, class U> void print(map<T, U> mp){cout << "{";each(mp, e){cout << "(" << e -> first << "," << e -> second << ")";}cout << "}" << endl;} /* general_method */ 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; } /* main */ struct UnionFind { vector<int> par; // 親ノード vector<int> rank; // ランク UnionFind(int n = 1) { init(n); } void init(int n = 1) { par.resize(n); rank.resize(n); for (int i = 0; i < n; ++i) par[i] = i, rank[i] = 0; } int root(int x) { if (par[x] == x) { return x; } else { int r = root(par[x]); return par[x] = r; } } bool issame(int x, int y) { return root(x) == root(y); } bool merge(int x, int y) { x = root(x); y = root(y); if (x == y) return false; if(x == 0){ par[y] = x; ++rank[x]; return true; } if(y == 0){ par[x] = y; ++rank[y]; return true; } if (rank[x] < rank[y]) swap(x, y); if (rank[x] == rank[y]) ++rank[x]; par[y] = x; return true; } int count_connected_comp(){ set<int> s; rep(i,0,par.size()){ s.insert(par[i]); } return s.size(); } }; signed main(){ cin.tie(0); ios::sync_with_stdio(false); int n, m, q; cin >> n >> m >> q; vec<pi> edges; rep(i,0,m){ int f, t; cin >> f >> t; f--; t--; edges.push_back(make_pair(f,t)); } vec<pi> broken_edges; reverse(all(broken_edges)); rep(i,0,q){ int f,t; cin >> f >> t; f--; t--; broken_edges.push_back(make_pair(f, t)); } reverse(all(broken_edges)); set<pi> s; rep(i,0, broken_edges.size()) s.insert(broken_edges[i]); UnionFind uf = UnionFind(n); //union_nodes rep(i,0,m) if(not exist(s, edges[i])) uf.merge(edges[i].first, edges[i].second); vec<vi> roots(n, vi()); rep(i,1,n){ roots[uf.root(i)].push_back(i); } vi ans(n,-10); //can visit arbitary rep(i,1,n){ if(uf.root(i) == 0){ ans[i] = -1; } } vi lst(n); rep(i,0,broken_edges.size()){ int f = broken_edges[i].first, t = broken_edges[i].second; if((uf.root(f) == 0 && uf.root(t) != 0) or (uf.root(f) != 0 && uf.root(t) == 0)){ chmax(lst[uf.root(f)], (int)broken_edges.size() - i); chmax(lst[uf.root(t)], (int)broken_edges.size() - i); } uf.merge(f, t); } //can never visit rep(i,1, n){ if(uf.root(i) != 0){ ans[i] = 0; } } rep(i,1,n){ rep(j,0,roots[i].size()){ ans[roots[i][j]] = lst[i]; } } print(ans); }