poj2028

简单题

View Code

#include <iostream>

#include <cstdlib>

#include <cstdio>

#include <cstring>

using namespace std;



#define maxd 105



int n, q;

int f[maxd];



void input()

{

    memset(f, 0, sizeof(f));

    for (int i = 0; i < n; i++)

    {

        int num;

        scanf("%d", &num);

        for (int j = 0; j < num; j++)

        {

            int a;

            scanf("%d", &a);

            f[a]++;

        }

    }

}



void work()

{

    int temp = 0;

    for (int i = 0; i <= 100; i++)

    {

        if (f[i] > f[temp])

            temp = i;

    }

    if (f[temp] < q)

        printf("0\n");

    else

        printf("%d\n", temp);

}



int main()

{

    //freopen("t.txt", "r", stdin);

    while (scanf("%d%d", &n, &q), n | q)

    {

        input();

        work();

    }

    return 0;

}