given a string s comprising of the characters 0, 1, and ?.    We should call a string unsteady in the event that it comprises of the characters 0 and 1 and any two contiguous characters are unique (I. e. it has the structure 010101... or then again 101010...).    How about we call a string delightful in the event that it

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Computer science. Correct answer will be upvoted else downvoted.

 

 

You are given a string s comprising of the characters 0, 1, and ?. 

 

We should call a string unsteady in the event that it comprises of the characters 0 and 1 and any two contiguous characters are unique (I. e. it has the structure 010101... or then again 101010...). 

 

How about we call a string delightful in the event that it comprises of the characters 0, 1, and ?, and you can supplant the characters ? to 0 or 1 (for each character, the decision is free), so the string becomes shaky. 

 

For instance, the strings 0??10, 0, and ??? are wonderful, and the strings 00 and ?1??1 are not. 

 

Ascertain the number of delightful adjacent substrings of the string s. 

 

Input 

 

The main line contains a solitary integer t (1≤t≤104) — number of experiments. 

 

The solitary line of each experiment contains the string s (1≤|s|≤2⋅105) comprising of characters 0, 1, and ?. 

 

It is ensured that the amount of the string lengths over all experiments doesn't surpass 2⋅105. 

 

Output 

 

For each experiment, output a solitary integer — the number of wonderful substrings of the string s.

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