제출 #223742

#제출 시각아이디문제언어결과실행 시간메모리
223742staniewzki낙하산 고리들 (IOI12_rings)C++17
컴파일 에러
0 ms0 KiB
clude<bits/stdc++.h> using namespace std; #define REP(i, n) for(int i = 0; i < n; i++) template<class T> int size(T && a) { return (int) a.size(); } struct Graph { vector<int> rep, deg; int excluded = -1; int find(int x) { return rep[x] < 0 ? x : find(rep[x]); } int bicomp = -1; int get_cycle() { return -rep[find(bicomp)]; } void join(int x, int y) { x = find(x), y = find(y); if(x == y) { if(bicomp == -1) bicomp = x; else bicomp = -2; return; } if(rep[x] > rep[y]) swap(x, y); rep[x] += rep[y]; rep[y] = x; } int max_deg = 0; void add_edge(int a, int b) { if(a == excluded || b == excluded) return; max_deg = max(max_deg, ++deg[a]); max_deg = max(max_deg, ++deg[b]); join(a, b); } Graph(int n = 0, int e = -1) : rep(n, -1), deg(n), excluded(e) {} }; int n; vector<pair<int, int>> edges; Graph graph; vector<Graph> without; void Init(int N) { n = N; graph = Graph(n); } void Link(int A, int B) { edges.emplace_back(A, B); if(graph.max_deg < 3) { graph.add_edge(A, B); if(graph.max_deg == 3) { if(graph.deg[A] != 3) swap(A, B); vector<int> crit = {A}; for(auto &[u, v] : edges) { if(u == A) crit.emplace_back(v); if(v == A) crit.emplace_back(u); } for(int x : crit) { without.emplace_back(n, x); for(auto &[u, v] : edges) without.back().add_edge(v, u); } } } else { for(auto &g : without) g.add_edge(A, B); } } int CountCritical() { if(graph.max_deg < 3) { if(graph.bicomp == -1) return n; if(graph.bicomp == -2) return 0; return graph.get_cycle(); } else { int ret = 0; for(auto &g : without) { if(g.bicomp == -1 && g.max_deg < 3) ret++; } return ret; } }

컴파일 시 표준 에러 (stderr) 메시지

rings.cpp:1:1: error: 'clude' does not name a type
 clude<bits/stdc++.h>
 ^~~~~
rings.cpp:9:2: error: 'vector' does not name a type
  vector<int> rep, deg;
  ^~~~~~
rings.cpp: In member function 'int Graph::find(int)':
rings.cpp:13:10: error: 'rep' was not declared in this scope
   return rep[x] < 0 ? x : find(rep[x]);
          ^~~
rings.cpp: In member function 'int Graph::get_cycle()':
rings.cpp:18:11: error: 'rep' was not declared in this scope
   return -rep[find(bicomp)];
           ^~~
rings.cpp: In member function 'void Graph::join(int, int)':
rings.cpp:28:12: error: 'rep' was not declared in this scope
         if(rep[x] > rep[y]) swap(x, y);
            ^~~
rings.cpp:28:29: error: 'swap' was not declared in this scope
         if(rep[x] > rep[y]) swap(x, y);
                             ^~~~
rings.cpp:29:3: error: 'rep' was not declared in this scope
   rep[x] += rep[y];
   ^~~
rings.cpp: In member function 'void Graph::add_edge(int, int)':
rings.cpp:37:28: error: 'deg' was not declared in this scope
   max_deg = max(max_deg, ++deg[a]);
                            ^~~
rings.cpp:37:13: error: 'max' was not declared in this scope
   max_deg = max(max_deg, ++deg[a]);
             ^~~
rings.cpp: In constructor 'Graph::Graph(int, int)':
rings.cpp:42:33: error: class 'Graph' does not have any field named 'rep'
  Graph(int n = 0, int e = -1) : rep(n, -1), deg(n), excluded(e) {}
                                 ^~~
rings.cpp:42:45: error: class 'Graph' does not have any field named 'deg'
  Graph(int n = 0, int e = -1) : rep(n, -1), deg(n), excluded(e) {}
                                             ^~~
rings.cpp: At global scope:
rings.cpp:46:1: error: 'vector' does not name a type
 vector<pair<int, int>> edges;
 ^~~~~~
rings.cpp:48:1: error: 'vector' does not name a type
 vector<Graph> without;
 ^~~~~~
rings.cpp: In function 'void Link(int, int)':
rings.cpp:56:2: error: 'edges' was not declared in this scope
  edges.emplace_back(A, B);
  ^~~~~
rings.cpp:60:13: error: 'struct Graph' has no member named 'deg'
    if(graph.deg[A] != 3)
             ^~~
rings.cpp:61:5: error: 'swap' was not declared in this scope
     swap(A, B);
     ^~~~
rings.cpp:63:4: error: 'vector' was not declared in this scope
    vector<int> crit = {A};
    ^~~~~~
rings.cpp:63:11: error: expected primary-expression before 'int'
    vector<int> crit = {A};
           ^~~
rings.cpp:64:23: error: unable to deduce 'auto&&' from 'edges'
    for(auto &[u, v] : edges) {
                       ^~~~~
rings.cpp:65:16: error: 'crit' was not declared in this scope
     if(u == A) crit.emplace_back(v);
                ^~~~
rings.cpp:65:16: note: suggested alternative: 'Init'
     if(u == A) crit.emplace_back(v);
                ^~~~
                Init
rings.cpp:66:16: error: 'crit' was not declared in this scope
     if(v == A) crit.emplace_back(u);
                ^~~~
rings.cpp:66:16: note: suggested alternative: 'Init'
     if(v == A) crit.emplace_back(u);
                ^~~~
                Init
rings.cpp:69:16: error: 'crit' was not declared in this scope
    for(int x : crit) {
                ^~~~
rings.cpp:69:16: note: suggested alternative: 'Init'
    for(int x : crit) {
                ^~~~
                Init
rings.cpp:70:5: error: 'without' was not declared in this scope
     without.emplace_back(n, x);
     ^~~~~~~
rings.cpp:71:24: error: unable to deduce 'auto&&' from 'edges'
     for(auto &[u, v] : edges)
                        ^~~~~
rings.cpp:77:17: error: 'without' was not declared in this scope
   for(auto &g : without)
                 ^~~~~~~
rings.cpp: In function 'int CountCritical()':
rings.cpp:90:17: error: 'without' was not declared in this scope
   for(auto &g : without) {
                 ^~~~~~~