Optimize The Slow Code

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Chef hates unoptimized codes and people who write such codes. One fine day he decided to look through the kitchen's codebase and found a function whose pseudo-code is given here: ```plaintext input: integer N, list X[1, 2, ..., N], list Y[1, 2, ..., N] output: integer res function: set res = 0; for i := 1 to N do for j := 1 to N do for k := 1 to N do if (X[i] = X[j]) OR (X[j]

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solution.cppC++17

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