Submission #841259

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
841259	2023-09-01T12:13:31 Z	serifefedartar	Political Development (BOI17_politicaldevelopment)	C++17	Compilation error	0 ms	0 KB

politicaldevelopment

#include <bits/stdc++.h>
using namespace std;
 
#define fast ios::sync_with_stdio(0);cin.tie(0);
typedef long long ll;
#define f first
#define s second
#define MOD 1000000007
#define LOGN 20
#define MAXN 200005
 
vector<vector<int>> graph;
vector<pair<int,int>> degree;
set<pair<int,int>> edges;
bool omit[MAXN];
int main() {
	fast
	int N, K, x, D; 
	cin >> N >> K;
 
	graph = vector<vector<int>>(N, vector<int>());
	degree = vector<pair<int,int>>(N);
	for (int i = 0; i < N; i++)
		degree[i] = {0, i};
	for (int i = 0; i < N; i++) {
		cin >> D;
		for (int j = 0; j < D; j++) {
			cin >> x;
			graph[x].push_back(i);
			graph[i].push_back(x);
			edges.insert({min(x, i), max(x, i)});
			degree[i].f++;
			degree[x].f++;
		}
	}
	sort(degree.begin(), degree.end());

	int ans = 1;
	for (auto u : degree) {
		int node = u.s;
 
		vector<int> adj;
		for (auto p : graph[node]) {
			if (!omit[p])
				adj.push_back(p);
		}
		int degree = adj.size();
		
		int mx_mask = (1<<degree) - 1;
		for (int msk = 1; msk <= mx_mask; msk++) {
			vector<int> taken;
			taken.push_back(node);
			bool check = true;
			for (int j = 0; j < degree; j++) {
				if ((1<<j) & msk) {
					for (auto u : taken) {
						if (edges.count({min(adj[j], u), max(adj[j], u)}) == 0)
							check = false;
					}
					taken.push_back(adj[j]);
				}
			}
 
			if (check)
				ans = max(ans, taken.size());
		}
		omit[node] = true;
	}
	cout << ans << "\n";
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:65:32: error: no matching function for call to 'max(int&, std::vector<int>::size_type)'
   65 |     ans = max(ans, taken.size());
      |                                ^
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 politicaldevelopment.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:
politicaldevelopment.cpp:65:32: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::vector<int>::size_type' {aka 'long unsigned int'})
   65 |     ans = max(ans, taken.size());
      |                                ^
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 politicaldevelopment.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:
politicaldevelopment.cpp:65:32: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::vector<int>::size_type' {aka 'long unsigned int'})
   65 |     ans = max(ans, taken.size());
      |                                ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from politicaldevelopment.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:
politicaldevelopment.cpp:65:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   65 |     ans = max(ans, taken.size());
      |                                ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from politicaldevelopment.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:
politicaldevelopment.cpp:65:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   65 |     ans = max(ans, taken.size());
      |                                ^