CF1535C.Unstable String

普及/提高-

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题目描述

You are given a string ss consisting of the characters 0, 1, and ?.

Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...).

Let's call a string beautiful if it consists of the characters 0, 1, and ?, and you can replace the characters ? to 0 or 1 (for each character, the choice is independent), so that the string becomes unstable.

For example, the strings 0??10, 0, and ??? are beautiful, and the strings 00 and ?1??1 are not.

Calculate the number of beautiful contiguous substrings of the string ss .

输入格式

The first line contains a single integer tt ( 1t1041 \le t \le 10^4 ) — number of test cases.

The first and only line of each test case contains the string ss ( 1s21051 \le |s| \le 2 \cdot 10^5 ) consisting of characters 0, 1, and ?.

It is guaranteed that the sum of the string lengths over all test cases does not exceed 21052 \cdot 10^5 .

输出格式

For each test case, output a single integer — the number of beautiful substrings of the string ss .

输入输出样例

  • 输入#1

    3
    0?10
    ???
    ?10??1100

    输出#1

    8
    6
    25
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