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1. www.geeksforgeeks.org › find-duplicates-givenFind duplicate elements in an array - GeeksforGeeks

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   Dec 14, 2023 · Learn how to print the duplicates in an array using nested loop, hash-map, or sorting algorithms. See examples, code, and time complexity analysis for C++, Java, Python, and Javascript.

   • Array Duplicates | Practice | GeeksforGeeks

     Array Duplicates. Difficulty: Easy Accuracy: 18.95%...

2. www.javatpoint.com › java-program-to-print-theProgram to print the duplicate elements of an array - Javatpoint

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   Learn how to find and print the duplicate elements in an array using two loops and an algorithm. See the code, output and explanation of the program with examples.

3. leetcode.com › find-all-duplicates-in-an-arrayFind All Duplicates in an Array - LeetCode

   leetcode.com › find-all-duplicates-in-an-array

   A real interview question to find all the integers that appear twice in an array of length n. The algorithm should run in O (n) time and use only constant extra space.

4. leetcode.com › problems › find-the-duplicate-numberFind the Duplicate Number - LeetCode

   leetcode.com › problems › find-the-duplicate-number

   Solve a real interview question to find the only repeated number in an array of integers [1, n] where n + 1 integers are given. Use constant extra space and linear runtime complexity.

5. www.geeksforgeeks.org › problems › find-duplicatesArray Duplicates | Practice | GeeksforGeeks

   www.geeksforgeeks.org › problems › find-duplicates

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   Learn how to find all the elements occurring more than once in an array of size N that contains elements from 0 to N-1. See examples, input, output, constraints and code for this easy problem.

6. www.tutorialstonight.com › javascript-findJavaScript Find Duplicates in Array - Tutorials Tonight

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   Learn 10 different ways to find duplicate elements in an array in JavaScript, with examples and performance comparison. Use nested loops, indexOf, lastIndexOf, includes, reduce, map, some, object, lodash and more.

7. People also ask

   How to find duplicate elements in an array?

   • Using indexOf () and lastIndexOf () Another way to find duplicate elements in an array is by using the indexOf () and lastIndexOf () methods. For each element in the array, check if the first index of the element is equal to the last index of the element, if not, then it is a duplicate element.

   JavaScript Find Duplicates in Array (in 5 ways) - Tutorials Tonight

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   How to find duplicates in array in Java?

   • In this method, We use HashMap to find duplicates in array in java. We store the elements of input array as keys of the HashMap and their occurrences as values of the HashMap. If the value of any key is more than one (>1) then that key is duplicate element. Using this method, you can also find the number of occurrences of duplicates.

   How To Find Duplicates In Array In Java? - 5 Methods

   javaconceptoftheday.com/find-duplicates-in-array-in-java/

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   How to check if an array has duplicates?

   • For each element in the array, check if it is present in the rest of the array or not, if it is present, then increment the count of duplicates by 1. After checking for duplicates for each element, check if the count of duplicates is greater than 1, if yes, then print the element and its count. count++; } } if (count > 1) {

   JavaScript Find Duplicates in Array (in 5 ways) - Tutorials Tonight

   www.tutorialstonight.com/javascript-find-duplicates-in-array

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   How to find a duplicate element in JavaScript?

   • The first loop will select an element and the second loop will iteration through the array by comparing the selected element with other elements. If a match is found, print the duplicate element. In the above array, the first duplicate will be found at the index 4 which is the duplicate of the element (2) present at index 1.

   Program to print the duplicate elements of an array - Javatpoint

   www.javatpoint.com/java-program-to-print-the-duplicate-elements-of-an-array

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   How to find duplicate elements in an array using nested for loop?

   • 1. Using Nested for loop The most basic way to find duplicate elements in an array is by using a nested for loops. For each element in the array, check if it is present in the rest of the array or not, if it is present, then increment the count of duplicates by 1.

   JavaScript Find Duplicates in Array (in 5 ways) - Tutorials Tonight

   www.tutorialstonight.com/javascript-find-duplicates-in-array

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   How to find duplicate elements in Java 8?

   • The following method uses Java 8 Streams to find duplicates in array. System.out.println("Duplicate Element : "+entry.getKey()+" - found "+entry.getValue()+" times."); Output : Duplicate Element : 555 – found 2 times. Duplicate Element : 333 – found 2 times. Also Read : How to remove duplicate elements from an array in java?

   How To Find Duplicates In Array In Java? - 5 Methods

   javaconceptoftheday.com/find-duplicates-in-array-in-java/

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8. www.geeksforgeeks.org › find-duplicates-in-on-timeFind duplicates in O (n) time and O (1) extra space | Set 1

   www.geeksforgeeks.org › find-duplicates-in-on-time

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   May 7, 2024 · Find the two repeating elements in a given array. Approach 1 ( Using hashmap): Use the input array to store the frequency of each element.