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Submission #632154

# Submission time Handle Problem Language Result Execution time Memory
632154 2022-08-19T14:18:18 Z boris_mihov CONSUL (info1cup19_consul) C++17
85 / 100
 27 ms 256 KB 
#include "grader.h"
#include <algorithm>
#include <iostream>
#include <numeric>
#include <vector>
#include <map>

typedef long long llong;
const int MAXN = 1000 + 10;
const int INF  = 1e9;

std::map <int,int> map;
bool used[MAXN];

void solve(int n)
{
    if (n <= 50)
    {
        for (int i = 1 ; i <= n ; ++i)
        {
            map[kth(i)]++;
        }

        for (auto [key, value] : map)
        {
            if (value > n/3)
            {
                say_answer(key);
                return;
            }
        }

        say_answer(-1);
        return;
    }

    srand(69);
    std::fill(used + 1, used + 1 + n, false);
    for (int i = 1 ; i <= std::min(n/2, 30) ; ++i)
    {
        int curr;
        do
        {
            curr = rand()%n + 1;
        } while (used[curr]);
        used[curr] = true;
        curr = kth(curr);
        if (cnt(curr) > n/3) 
        {
            say_answer(curr);
            return;
        }
    }    

    say_answer(-1);
}

Subtask #1
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Wrong answer
2 Halted 0 ms 0 KB -

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 208 KB Output is correct
2 Correct 5 ms 208 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 208 KB Output is correct
2 Correct 19 ms 208 KB Output is correct
3 Correct 8 ms 208 KB Output is correct
4 Correct 6 ms 208 KB Output is correct
5 Correct 20 ms 208 KB Output is correct
6 Correct 24 ms 208 KB Output is correct
7 Correct 21 ms 208 KB Output is correct
8 Correct 11 ms 208 KB Output is correct
9 Correct 21 ms 208 KB Output is correct
10 Correct 21 ms 208 KB Output is correct
11 Correct 20 ms 208 KB Output is correct
12 Correct 17 ms 208 KB Output is correct
13 Correct 27 ms 208 KB Output is correct
14 Correct 14 ms 256 KB Output is correct