Submission #808866

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
808866	2023-08-05T11:59:33 Z	OrazB	Friend (IOI14_friend)	C++14	Compilation error	0 ms	0 KB

friend

#include <bits/stdc++.h>
// #include "friend.h"
using namespace std;
#define all(x) (x).begin(), (x).end()
#define ll long long int
#define pii pair <int, int>
#define pb push_back
#define ff first
#define ss second

const int N = 1e5+5;
int c[N];
ll mx = 0;
vector<int> E[N];

void bit(int x, int n, int A[]){
	if (x == n){
		ll sum = 0;
		for (int i = 0; i < n; i++){
			if (c[i]){
				for (auto j : E[i]) if (c[j]) return;
				sum += A[i];
			}
		}
		mx = max(mx, sum);
		return;
	}
	for (int i = 0; i < 2; i++){
		c[x] = i;
		bit(x+1, n, A);
	}
}

int findSample(int n, int A[], int u[], int v[]){
	for (int i = 1; i < n; i++){
		if (v[i] == 1 or v[i] == 2){
			for (auto j : E[u[i]]){
				E[i].pb(j);
				E[j].pb(i);
			}
		}
		if (v[i] == 0 or v[i] == 2){
			E[i].pb(u[i]);
			E[u[i]].pb(i);
		}
	}
	bit(0, n, A);
	return mx;
}


int main ()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n;
	cin >> n;
	int A[n], a[n], b[n];
	for (int i = 0; i < n; i++) cin >> A[i];
	for (int i = 1; i < n; i++) cin >> a[i] >> b[i];
	cout << findSample(n, A, a, b);
}	

Compilation message

/usr/bin/ld: /tmp/ccO6x5ms.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccHaHuLq.o:friend.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status