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38 lines (37 loc) · 751 Bytes
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ABBB.cpp
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38 lines (37 loc) · 751 Bytes
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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main()
{
cin.tie(0);cin.sync_with_stdio(0);
cout.tie(0);cout.sync_with_stdio(0);
int t = 1;
cin >> t;
while (t--)
{
string str;
cin>>str;
string str1="AB";
string str2="BB";
int temp=str.size();
for(int i=0; i<temp;)
{
string s=str.substr(i, 2);
if(s==str1 || s==str2)
{
str.erase(i, 2);
if(i>0)
{
i--;
}
}
else
{
i++;
}
temp=str.size();
}
cout<<str.size()<<endl;
}
return 0;
}