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我用HASH过了,不懂为什么用排序就过不了呢!总是WA!!求大神指点#include <iostream>
#include <algorithm>
using namespace std;
int num[5000];
int main()
{
int n,q;
while(scanf("%d%d",&n,&q),n!=0||q!=0)
{
int tem=0;
for(int i=0;i<n;i++)
{
int k;
scanf("%d",&k);
for(int j=0;j<k;j++)
{
cin>>num[tem];
tem++;
}
}
sort(num,num+tem);
int a[2]={0};
int sum=1;
for(int i=0;i<tem-1;i++)
{
if(num[i]==num[i+1])
{
sum++;
}
else{
if(num[i]!=0&&sum>=q&&sum>a[0])
{
a[1]=num[i];
a[0]=sum;
}
sum=1;
}
}
if(sum>=q&&sum>a[0])
{
a[1]=num[tem-1];
a[0]=sum;
}
printf("%d\n",a[1]);
}
return 0;
}
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