3084. Count Substrings Starting and Ending with Given Character

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You are given a string s and a character c. Return the total number of substrings of s that start and end with c. Example 1: Input: s = "abada", c = "a" Output: 6 Explanation: Substrings starting and ending with "a" are: "abada", "abada", "abada", "abada", "abada", "abada". Example 2: Input: s = "zzz", c = "z" Output: 6 Explanation: There are a total of 6 substrings in s and all start an

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solution.cppC++17

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