题解 | #判断元素是否出现#
判断元素是否出现
https://www.nowcoder.com/practice/0787459e92bc4360ba48b094b7f21577
#include<bits/stdc++.h>
using namespace std;
int main(){
//write your code here......
int n,m,a;
int x;
cin>>n>>m;
map<int,int>mp;
while(n--)
{
cin>>a;
mp[a]++;
}
while(m--)
{
cin>>x;
if(mp[x])
{
cout<<"yes"<<endl;
}
else
{
cout<<"no"<<endl;
}
}
return 0;
}
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