Submission #550053

#	Time	Username	Problem	Language	Result	Execution time	Memory
550053		CSQ31	Friend (IOI14_friend)	C++17	100 / 100	29 ms	3408 KiB

friend

#include "friend.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef vector<vector<int>> vii;
#define pb push_back
#define sz(a) (int)(a.size())
int p[100000],q[100000];
int findSample(int n,int confidence[],int h[],int protocol[]){
	for(int i=0;i<n;i++)p[i] = confidence[i];
	for(int i=n-1;i>0;i--){
		if(protocol[i] == 0){
			p[h[i]] = p[h[i]] + q[i];
			q[h[i]] = q[h[i]] + max(p[i],q[i]);
		}else if(protocol[i] == 1){
			p[h[i]] = max(p[h[i]] + max(p[i],q[i]) , p[i] + q[h[i]]);
			q[h[i]] = q[h[i]] + q[i];
			
		}else{
			p[h[i]] = max(p[h[i]] + q[i],p[i] + q[h[i]]);
			q[h[i]] = q[h[i]] + q[i];
		}
		
	}
	return max(p[0],q[0]);
}

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