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Using C programming language

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A fence is defined if it has '-' and/or '|' characters only put next to each other. For example, '|-| ' and ' are considered valid fences. You are given a fence, define/write the function 'longestFence' that finds and returns the longest fence in a string that is generated randomly with '-' and '|' characters. Examples: 1. 6 2. 4 3. 3 4. 1 5. 1 6. 1 7. 1