oj.uz

Submission #1087991

# Submission time Handle Problem Language Result Execution time Memory
1087991 2024-09-13T16:30:39 Z Has2008 Izbori (COCI17_izbori) C++17
80 / 80
 29 ms 348 KB 
#include "bits/stdc++.h"
using namespace std;

#define int long long
#define endl endl

const int mod = 1e9 + 7;
const int maxn = 105;

int n, m, k, arr[maxn][20], ans = INT_MAX;
vector < int > v;

int the_winner()
{
    bool out[20] = { };
    for(auto i : v) out[i] = 1;

    int frq[20] = { }, winner = -1, mx = -1;
    for(int i = 0; i < n; i++)
    {
        int j;
        for(j = 0; j < m; j++) if(!out[arr[i][j]]) break;

        frq[arr[i][j]]++;
        if(frq[arr[i][j]] > mx || (arr[i][j] < winner && mx == frq[arr[i][j]])) winner = arr[i][j], mx = frq[arr[i][j]];
    }

    return winner;
}

void rec(int i, int cnt)
{
    if(i == m)
    {
        if(the_winner() == k) ans = min(ans, cnt);
        return;
    }

    v.push_back(i + 1);
    rec(i + 1, cnt + 1);
    v.pop_back();

    rec(i + 1, cnt);
}

void solve()
{

    cin >> n >> m >> k;

    int frq[m + 5] = { };
    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < m; j++)
        {
            cin >> arr[i][j];
            if(j == 0) frq[arr[i][j]] ++;
        }
    }

    int mx = -1, winner = -1;
    for(int i = 1; i <= m; i++) if(frq[i] > mx) mx = frq[i], winner = i;
    cout << winner << endl;


    rec(0, 0);
    cout << ans << endl;
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    int tt = 1;
    //cin >> tt;

    while(tt--) solve();
}

Subtask #1
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 348 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 6 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 4 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 3 ms 348 KB Output is correct
12 Correct 13 ms 348 KB Output is correct
13 Correct 24 ms 348 KB Output is correct
14 Correct 12 ms 348 KB Output is correct
15 Correct 4 ms 348 KB Output is correct
16 Correct 28 ms 348 KB Output is correct
17 Correct 14 ms 344 KB Output is correct
18 Correct 23 ms 348 KB Output is correct
19 Correct 28 ms 348 KB Output is correct
20 Correct 29 ms 348 KB Output is correct