Submission #762881

#	Time	Username	Problem	Language	Result	Execution time	Memory
762881		Trunkty	CONSUL (info1cup19_consul)	C++14	100 / 100	50 ms	208 KiB

consul

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
//#define int ll

#include "grader.h"

map<int,int> mp;
bool vis[1005];

void solve(int n){
    for(int i=1;i<=n;i++){
        vis[i] = false;
    }
    mp.clear();
    srand(314);
    if(n<=50){
        for(int i=1;i<=n;i++){
            mp[kth(i)]++;
        }
        for(pair<int,int> i:mp){
            if(i.second>n/3){
                say_answer(i.first);
                return;
            }
        }
        say_answer(-1);
        return;
    }
    for(int i=1;i<=50;i++){
        int curr = rand()%n+1;
        while(vis[curr]){
            curr = rand()%n+1;
        }
        vis[curr] = true;
        mp[kth(curr)]++;
    }
    vector<vector<int>> v;
    for(pair<int,int> i:mp){
        v.push_back({i.second,i.first});
    }
    sort(v.begin(),v.end(),greater<vector<int>>());
    int vs = v.size();
    for(int i=0;i<min(vs,10);i++){
        if(cnt(v[i][1])>n/3){
            say_answer(v[i][1]);
            return;
        }
    }
    say_answer(-1);
}

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 65 / 65