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containsTwice

Language/Type: C++ boolean string return
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Write a function named containsTwice that accepts a string and a character as parameters and returns true if that character occurs two or more times in the string. For example, the call of containsTwice("hello", 'l') should return true because there are two 'l' characters in that string.

Function: Write a C++ function as described, not a complete program.

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