C++ 行讀入

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#include<iostream>#include<string.h>#include<stdio.h>#include<algorithm>#include<map>#include<string>using namespace std;const int maxn=10000;int num[maxn];map<string,int>node1;map<int,string>node2;int main(){    int n;    while(scanf("%d",&n)!=EOF)    {        int pos=0;        int ans=0;        int id;        int test=1;        memset(num,0,sizeof(num));            string a;            getline(cin,a);            for(test=1;test<=n;test++)            {            getline(cin,a);            if(node1[a]==0)                node1[a]=++pos,node2[pos]=a;            num[node1[a]]++;            if(num[node1[a]]>ans)ans=num[node1[a]],id=node1[a];            }        cout<<node2[id]<<endl;    }    return 0;}