24.01.2020 sesison code

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int t;
    cin>>t;
    while(t--){
        int alp=0,num=0;
        string s;
        cin>>s;
        for(int i=0;i<s.length();i++){
            if(s[i]>='a'&&s[i]<='z') alp++;
            else num++;
        }
        int mi=(min(alp,num)*2);
        //cout<<mi<<endl;
        alp=0;
        num=0;
        deque<char> d;
        for(int i=0;i<s.length();i++){
            if(s[i]>='a'&&s[i]<='z') alp++;
            else num++;
            d.push_back(s[i]);
            if(d.size()>mi){
                if(d.front()>='a'&&d.front()<='z'){
                    alp--;
                }
                else{
                    num--;
                }
                d.pop_front();
            }
            cout<<alp<<" "<<num<<" "<<i+1<<endl;
        }
        if(alp+num==mi&&alp==num){
            cout<<mi<<endl;
        }
        else if(mi==2&&s.length()>2) cout<<mi<<endl;
        else cout<<mi-2<<endl;

    }
}