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40 lines (38 loc) · 751 Bytes
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1035.cpp
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40 lines (38 loc) · 751 Bytes
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#include<iostream>
#include<string>
#include<list>
using namespace std;
int main()
{
int t;
cin>>t;
while(t--)
{
int n;
cin>>n;
int count = 0;
list<string> a;
for(int i = 0 ; i < n; i++)
{
string x;
cin>>x;
string dna=x;
for(int j = 0; j < x.length() ; j++)
{
if(x[j]=='A') dna[j]='T';
if(x[j]=='T') dna[j]='A';
if(x[j]=='G') dna[j]='C';
if(x[j]=='C') dna[j]='G';
}
if(find(a.begin(),a.end(),dna) != a.end())
{
count++;
a.erase(find(a.begin(),a.end(),dna));
}
else
a.push_back(x);
}
cout<<count<<endl;
}
return 0;
}