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Submission #486317

# Submission time Handle Problem Language Result Execution time Memory
486317 2021-11-11T08:35:53 Z NintsiChkhaidze CONSUL (info1cup19_consul) C++14
100 / 100
 31 ms 200 KB 
#include <bits/stdc++.h>
#include "grader.h"
 
using namespace std;
 
int kth(int k);
void say_answer(int k);
int cnt(int k);
map <int,int> mp;
 
void solve(int n){    
     if (n<=50){
        mp.clear();
        for (int i = 1; i <= n; i++){
            int val = kth(i);
            mp[val]++;
            if (mp[val] > n/3){
                say_answer(val);
                return;
            }
        }
        say_answer(-1);
        return;
    }
    
    int r=0;
    set <int> st; st.clear();
    for (int i = 1; i <= n; i++){
        int val = kth(rand()%n + 1);
        r++;
        if (r == 60) break;
        if (st.find(val) != st.end())
            continue;
        
        st.insert(val);
        if (cnt(val) > n/3){
            say_answer(val);
            return;
        }
        r++;
        if (r == 60) break;
    }
    
    say_answer(-1);
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 200 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 200 KB Output is correct
2 Correct 5 ms 200 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 200 KB Output is correct
2 Correct 27 ms 200 KB Output is correct
3 Correct 6 ms 200 KB Output is correct
4 Correct 4 ms 200 KB Output is correct
5 Correct 22 ms 200 KB Output is correct
6 Correct 20 ms 200 KB Output is correct
7 Correct 22 ms 200 KB Output is correct
8 Correct 31 ms 200 KB Output is correct
9 Correct 10 ms 200 KB Output is correct
10 Correct 23 ms 200 KB Output is correct
11 Correct 21 ms 200 KB Output is correct
12 Correct 22 ms 200 KB Output is correct
13 Correct 18 ms 200 KB Output is correct
14 Correct 28 ms 200 KB Output is correct