제출 #854943

#제출 시각아이디문제언어결과실행 시간메모리
854943parlimoosBitaro’s Party (JOI18_bitaro)C++17
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h> using namespace std; const int root = 320; int n , m , q , r; vector<int> g[100000]; vector<pair<int , int>> lps[100000]; int dels[100000]; int dis[100000]; int ddd[100000][2]; void init(){ for(int i = 0 ; i < n ; i++){ vector<int> exs; lps[i].push_back({0 , i}); exs.push_back(i); ddd[i][0] = 0; ddd[i][1] = i + 1; for(int v : g[i]){ for(pair<int , int> el : lps[v]){ if(ddd[el.second][1] != i + 1){ exs.push_back(el.second); ddd[el.second][1] = i + 1; ddd[el.second][0] = el.first + 1; }else ddd[el.second][0] = max(ddd[el.second] , el.first + 1); } } for(int v : g[i]){ for(int el : exs){ lps[i].push_back({ddd[el][0] , el}); } sort(lps[i].begin() , lps[i].end() , [](pair<int , int> a , pair<int , int>b){ return (a.first > b.first); }); int len = (int)lps[i].size(); while(len > root){ lps[i].pop_back(); len--; } } } } void bfs(int op){ fill(&dis[0] , &dis[100000] , 0); for(int i = 0 ; i <= r ; i++){ for(int u : g[i]){ dis[i] = max(dis[u] + 1 , dis[i]); } if(dis[i] == 0 and dels[i] == op){ dis[i] = -1; } } } int main(){ ios::sync_with_stdio(false); cin.tie(0); cin >> n >> m >> q; for(int i = 0 ; i < m ; i++){ int v , u; cin >> v >> u; v-- , u--; g[u].push_back(v); } if(q > 1) init(); for(int i = 0 ; i < q ; i++){ int y; cin >> r >> y; r--; for(int j = 0 ; j < y ; j++){ int d; cin >> d; d--; dels[d] = i + 1; } if(y >= root or q == 1){ bfs(i + 1); cout << dis[r] << "\n"; }else{ int res = -1; for(int j = 0 ; j < (int)lps[r].size() ; j++){ if(dels[lps[r][j].second] != i + 1){ res = lps[r][j].first; break; } } cout << res << "\n"; } } }

컴파일 시 표준 에러 (stderr) 메시지

bitaro.cpp: In function 'void init()':
bitaro.cpp:27:64: error: no matching function for call to 'max(int [2], int)'
   27 |     }else ddd[el.second][0] = max(ddd[el.second] , el.first + 1);
      |                                                                ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from bitaro.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
bitaro.cpp:27:64: note:   deduced conflicting types for parameter 'const _Tp' ('int [2]' and 'int')
   27 |     }else ddd[el.second][0] = max(ddd[el.second] , el.first + 1);
      |                                                                ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from bitaro.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
bitaro.cpp:27:64: note:   deduced conflicting types for parameter 'const _Tp' ('int [2]' and 'int')
   27 |     }else ddd[el.second][0] = max(ddd[el.second] , el.first + 1);
      |                                                                ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from bitaro.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
bitaro.cpp:27:64: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   27 |     }else ddd[el.second][0] = max(ddd[el.second] , el.first + 1);
      |                                                                ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from bitaro.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
bitaro.cpp:27:64: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   27 |     }else ddd[el.second][0] = max(ddd[el.second] , el.first + 1);
      |                                                                ^
bitaro.cpp:30:11: warning: unused variable 'v' [-Wunused-variable]
   30 |   for(int v : g[i]){
      |           ^