Submission #161213

#	Time	Username	Problem	Language	Result	Execution time	Memory
161213		tincamatei	Untitled (POI11_imp)	C++14	100 / 100	863 ms	33620 KiB

Main

#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 3000;
bitset<MAX_N> adj[MAX_N];

bool inClique(const vector<int> &clique, int nod) {
	for(auto it: clique)
		if(!adj[it][nod])
			return false;
	
	return true;
}

int main() {
	int N, M, T;
	int x = 1;
	vector<int> solution;

	scanf("%d%d", &N, &M);
	for(int i = 0; i < M; ++i) {
		int a, b;
		scanf("%d%d",  &a, &b);
		adj[a][b] = adj[b][a] = true;
	}

	T = N / 3;

	solution.push_back(0);
	for(int i = 1; i < N && solution.size() < T; ++i) {
		if(inClique(solution, i)) {
			solution.push_back(i);
			++x;
		} else {
			--x;
			if(x == -1) {
				x = 1;
				solution.clear();
				solution.push_back(i);
			}
		}
	}

	for(auto it: solution)
		printf("%d ", it);

	return 0;
}

Compilation message (stderr)

imp.cpp: In function 'int main()':
imp.cpp:31:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 1; i < N && solution.size() < T; ++i) {
                          ~~~~~~~~~~~~~~~~^~~
imp.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~
imp.cpp:24:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",  &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 9 / 9
• Subtask 8: 9 / 9
• Subtask 9: 9 / 9
• Subtask 10: 9 / 9
• Subtask 11: 10 / 10