Write a function named "changeCase" that takes an array of characters terminating by NULL character (C-string) and a boolean flag of toUpper. If the toUpper flag is true, it will go through the array and convert all lowercase characters to uppercase. Otherwise, it will convert all uppercase to lowercase.For example, if the array is {'H', 'e', 'l', 'l', 'o', '\0'} and the flag is true, then the array will become{'H', 'E', 'L', 'L', 'O', '\0'}. And if the flag is false, the array will become{'h', 'e', 'l', 'l', 'o', '\0'}

I have provided C CODE along with CODE SCREENSHOT and OUTPUT SCREENSHOT------------------

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Write a function named "changeCase" that takes an array of characters terminating by NULL character (C-string) and a boolean flag of toUpper. If the toUpper flag is true, it will go through the array and convert all lowercase characters to uppercase. Otherwise, it will convert all uppercase to lowercase.

For example, if the array is {'H', 'e', 'l', 'l', 'o', '\0'} and the flag is true, then the array will become

{'H', 'E', 'L', 'L', 'O', '\0'}. And if the flag is false, the array will become
{'h', 'e', 'l', 'l', 'o', '\0'}

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