Question

Amazon WoW | OA | SDE1 | Coding Questions and Solutions | 2022 | Set-40

Answer 1

// Picnic Question

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int n;

    cin >> n;

    unordered_map<int, int> cmp_check;

    int count = 0;

    vector<int> comp(n, 0);

    for (int i = 0; i < n; i++)

    {

        cin >> comp[i];

    }

    for (int i = 0; i < n; i++)

    {

        int c_val = comp[i];

        cmp_check[c_val]++;

        if (cmp_check[c_val] == 2)

        {

            count++;

            cmp_check.clear();

        }

    }

    cout << count << endl;

    return 0;

}

Answer 2

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Answer 3

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