Submission #780328

#	Time	Username	Problem	Language	Result	Execution time	Memory
780328		NothingXD	Friend (IOI14_friend)	C++17	11 / 100	31 ms	4064 KiB

friend

#include "friend.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef complex<ld> point;

void debug_out(){cerr << endl;}

template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T){
	cout << H << ' ';
	debug_out(T...);
}

#define debug(...) cerr << "(" << #__VA_ARGS__ << "): ", debug_out(__VA_ARGS__)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define MP(x, y) make_pair(x, y)

const int maxn = 1e3 + 10;

vector<int> g[maxn];
int val[maxn];

// Find out best sample
int findSample(int n,int w[],int p[],int t[]){

	assert(n <= 10);
	
	for (int i = 1; i < n; i++){
		if (t[i] == 1 || t[i] == 2){
			for (auto u: g[p[i]]){
				g[u].push_back(i);
				g[i].push_back(u);
			}
		}
		if (t[i] == 0 || t[i] == 2){
			g[p[i]].push_back(i);
			g[i].push_back(p[i]);
			continue;
		}
	}

	int N = (1 << n);
	int ans = 0;
	for (int i = 1; i < N; i++){
		int sum = 0;
		for (int j = 0; j < n; j++){
			val[j] = (i >> j) & 1;
			if (val[j]) sum += w[j];
		}
		bool flg = true;
		for (int j = 0; j < n; j++){
			for (auto u: g[j]){
				if (val[j] && val[u]) flg = false;
			}
		}
		if (flg) ans = max(ans, sum);
	}

	return ans;
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 8
• Subtask 3: 0 / 8
• Subtask 4: 0 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31