Beautiful Pairs

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Chef loves to look out for different types of pair in a given sequence of integers. Chef calls a pair beautiful if in the given sequence $A$ there exists *A[i]* and *A[j]* such that $A[i]-A[j]=A[i]/A[j] $and the division $A[i]/A[j]$ yields a pure Integer. (where A[i]>A[j] and i not equal to j). Chef gives you the sequence A and asks you to find how many beautiful pairs are present in the sequence.

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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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