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def checkTriplet(array):     n = len(array)     for i in range(n):         array[i] = array[i]**2     array.sort()     for i in range(n - 1, 1, -1):         s = set()         for j in range(i - 1, -1, -1):             if (array[i] - arra

def checkTriplet(array):     n = len(array)     for i in range(n):         array[i] = array[i]**2     array.sort()     for i in range(n - 1, 1, -1):         s = set()         for j in range(i - 1, -1, -1):             if (array[i] - arra

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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def checkTriplet(array):
    n = len(array)
    for i in range(n):
        array[i] = array[i]**2

    array.sort()

    for i in range(n - 1, 1, -1):
        s = set()
        for j in range(i - 1, -1, -1):
            if (array[i] - array[j]) in s:
                return True
            s.add(array[j])
    return False


arr = [3, 2, 4, 6, 5]
checkTriplet(arr)
# True. 

 

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