제출 #416333

#제출 시각아이디문제언어결과실행 시간메모리
416333pauloamedBitaro’s Party (JOI18_bitaro)C++14
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h> using namespace std; #define MAXN 100010 #define ppiii pair<pair<int,int>,int> int n; vector<int> v[MAXN]; vector<int> rv[MAXN]; int fullSolution(int x, vector<bool> &on){ vector<int> pd(x+1, -1); int ans = -1; pd[x] = 0; for(int i = x; i >= 0; --i){ if(pd[i] != -1){ for(auto y : rv[i]){ pd[y] = max(pd[y], pd[i] + 1); } } if(on[i]) ans = max(ans, pd[i]); } return ans; } int main(){ ios_base::sync_with_stdio(false); cin.tie(NULL); int m, q; cin >> n >> m >> q; for(int i = 0; i < m; ++i){ int a, b; cin >> a >> b; a--, b--; if(a > b) swap(a, b); v[a].push_back(b); rv[b].push_back(a); } int block = max(1, sqrt(n) / 2); // cout << block << endl; vector<vector<pair<int,int>>> bestDists(n); for(int i = 0; i < n; ++i){ vector<int> currPointers(rv[i].size()); vector<bool> occour(n); priority_queue<ppiii, vector<ppiii>, less<ppiii>> pq; for(int j = 0; j < rv[i].size(); ++j){ pq.push(make_pair(bestDists[rv[i][j]].front(), j)); } while(pq.size() && bestDists[i].size() < block){ auto x = pq.top(); int j = x.second; int id = x.first.second; pq.pop(); if(++currPointers[j] < bestDists[rv[i][j]].size()){ pq.push(make_pair(bestDists[rv[i][j]][currPointers[j]], j)); } if(!occour[id]){ occour[id] = true; bestDists[i].push_back(x.first); } } for(auto &x : bestDists[i]) x.first++; if(bestDists[i].size() < block) bestDists[i].push_back({0, i}); } vector<bool> on(n, true); while(q--){ int x, y; cin >> x >> y; x--; vector<int> currOff; while(y--){ int z; cin >> z; z--; on[z] = false; currOff.push_back(z); } int ans = -1; for(auto z : bestDists[x]){ if(on[z.second]){ ans = z.first; break; } } if(ans == -1) ans = fullSolution(x, on); cout << ans << "\n"; for(auto z : currOff) on[z] = true; } }

컴파일 시 표준 에러 (stderr) 메시지

bitaro.cpp: In function 'int main()':
bitaro.cpp:40:33: error: no matching function for call to 'max(int, __gnu_cxx::__enable_if<true, double>::__type)'
   40 |   int block = max(1, sqrt(n) / 2);
      |                                 ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 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:40:33: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__enable_if<true, double>::__type' {aka 'double'})
   40 |   int block = max(1, sqrt(n) / 2);
      |                                 ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 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:40:33: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__enable_if<true, double>::__type' {aka 'double'})
   40 |   int block = max(1, sqrt(n) / 2);
      |                                 ^
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:40:33: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   40 |   int block = max(1, sqrt(n) / 2);
      |                                 ^
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:40:33: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   40 |   int block = max(1, sqrt(n) / 2);
      |                                 ^
bitaro.cpp:50:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for(int j = 0; j < rv[i].size(); ++j){
      |                    ~~^~~~~~~~~~~~~~
bitaro.cpp:54:44: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   54 |     while(pq.size() && bestDists[i].size() < block){
      |                        ~~~~~~~~~~~~~~~~~~~~^~~~~~~
bitaro.cpp:60:28: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |       if(++currPointers[j] < bestDists[rv[i][j]].size()){
      |          ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
bitaro.cpp:71:28: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   71 |     if(bestDists[i].size() < block) bestDists[i].push_back({0, i});
      |        ~~~~~~~~~~~~~~~~~~~~^~~~~~~