remove duplicates of unsorted array in c++

Abdul Haque answered on August 12, 2022 Popularity 9/10 Helpfulness 2/10

answer remove duplicates of unsorted array in c++

related erase repeated values array c++

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remove duplicates of unsorted array in c++

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// C++ program to remove the duplicates from the array.
#include "iostream"
#include "unordered_map"
using namespace std;
 
void removeDups(int arr[], int n)
{
    // Hash map which will store the
    // elements which has appeared previously.
    unordered_map<int, bool> mp;
 
    for (int i = 0; i < n; ++i) {
 
        // Print the element if it is not
        // there in the hash map
        if (mp.find(arr[i]) == mp.end()) {
            cout << arr[i] << " ";
        }
 
        // Insert the element in the hash map
        mp[arr[i]] = true;
    }
}
 
int main(int argc, char const* argv[])
{
    int arr[] = { 1, 2, 5, 1, 7, 2, 4, 2 };
    int n = sizeof(arr) / sizeof(arr[0]);
    removeDups(arr, n);
    return 0;
}

Popularity 9/10 Helpfulness 2/10 Language cpp

Source: www.geeksforgeeks.org

Tags: c++

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Contributed on Sep 10 2022

Abdul Haque

0 Answers Avg Quality 2/10

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erase repeated values array c++

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std::sort(userNumbers.begin(), userNumbers.end());
for(int i = 0; i < userNumbers.size() - 1; i++) {
    if (userNumbers[i] == userNumbers[i + 1]) {
        userNumbers.erase(userNumbers.begin() + i);
        i--;
    }
}

Popularity 9/10 Helpfulness 3/10 Language cpp

Source: stackoverflow.com

Tags: c++

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Contributed on Sep 04 2022

DeliaBlue

0 Answers Avg Quality 2/10

c++ remove duplicates

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Input: nums = [2,5,6,0,0,1,2], target = 3
Output: false

Popularity 10/10 Helpfulness 1/10 Language cpp

Source: leetcode.com

Tags: c++

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Contributed on Aug 12 2022

Faithful Fly

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remove duplicates of unsorted array in c++

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remove duplicates of unsorted array in c++

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erase repeated values array c++

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