Square Spiral

CodeChefOpen on judge ↗

Chef is fond of attractive patterns and he likes to challenge himself to design creative patterns. This time he thought to write a piece of code which will print the pattern for him. Help Chef to complete his program. You are given an even integer $N$. Print $(N*2)+1$ lines of the pattern; that's how Chef wants it. For example, for $N=6$, the pattern will look like: #############

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L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

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L5 Full solution

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solution.cppC++17

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