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1618B Missing Bigram codeforces solution in cpp

 

1618B Missing Bigram codeforces solution in cpp

by ujjal roy



#include<bits/stdc++.h>

using namespace std;

main()

{


    int t,i,n;

    cin>>t;

    while(t--)

    {

        string s,s1;


        cin>>n;

        cin>>s;

        for(i=2;i<=n-2;i++)

        {

            cin>>s1;

            if(s[s.size()-1]==s1[0]) s+=s1[1];

            else s+=s1;


        }

        if(s.size()!=n) s+='a';

        cout<<s<<endl;

    }

    return 0;

}


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