Submission #204803

#	Time	Username	Problem	Language	Result	Execution time	Memory
204803		awlintqaa	Friend (IOI14_friend)	C++14	8 / 100	7 ms	380 KiB

friend

#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 200
#define mid (l+r)/2
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
typedef long long ll;
typedef short int si;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
const ll mod=1e9+7;
const ll inf= 4e18;
const ld pai=acos(-1);
#include "friend.h"
int p[100009];
int mx[100009];
int get(int node){
        if(p[node]==node)return node;
        return get(p[node]);
}
void merge(int a,int b){
        a=get(a);
        b=get(b);
        if(a==b)return ;
        p[b]=a;
        mx[a]=max(mx[a],mx[b]);
}
int findSample(int n,int confidence[],int host[],int protocol[]){
        for(int i=0;i<n;i++){
                p[i]=i;
                mx[i]=confidence[i];
        }
        for(int i=1;i<n;i++){
                int a=i,b=host[i];
                merge(a,b);
        }
        set<int>s;
        int ans=0;
        for(int i=0;i<n;i++){
                int x=get(i);
                if(s.find(x)!=s.end())C;
                s.ins(x);
                ans+=mx[x];
        }
        return ans;
}

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