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14425.cpp
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50 lines (37 loc) · 706 Bytes
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//
// 14425.cpp
// algo
//
// Created by 박효정 on 2021/07/31.
//
#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
using namespace std;
int main(){
cin.tie(0);
cout.tie(0);
std::ios::sync_with_stdio(false);
int n,m;
cin>>n>>m;
int cnt=0;
set<string>s;
vector<string>v;
string tmp;
for(int i=0;i<n;i++){
cin>>tmp;
s.insert(tmp);
}
for(int i=0;i<m;i++){
cin>>tmp;
v.push_back(tmp);
}
for(int i=0;i<m;i++){
if(s.find(v[i])!=s.end()){
cnt++;
}
}
cout<<cnt<<"\n";
return 0;
}