uva 10474 Solution - Where is the Marble?

#include<iostream>
#include<set>
#include<algorithm>

using namespace std;

int main(){
multiset<int> myset;
multiset<int>::iterator msit;
int n,q,x,i,kase=1;
while(cin>>n>>q){
if(n==0 && q==0)
break;
myset.clear();
for(i=0;i<n;i++){
cin>>x;
myset.insert(x);
}
cout<<"CASE# "<<kase++<<":"<<endl;
for(i=0;i<q;i++){
cin>>x;
msit=myset.find(x);
if(msit==myset.end())
cout<<x<<" not found"<<endl;
else
cout<<x<<" found at "<<distance(myset.begin(),msit)+1<<endl;
}
}
return 0;
}

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