Submission #464455

#	Time	Username	Problem	Language	Result	Execution time	Memory
464455		Quentolosse	XORanges (eJOI19_xoranges)	C++14	30 / 100	217 ms	65540 KiB

xoranges

#include<iostream>
#include<vector>

using namespace std;

int main()
{
    int nboranges, nbActions;
    cin >> nboranges >> nbActions;
    vector<int> oranges, resultatsXor;
    for (int i = 0; i < nboranges; i++)
    {
        int entree;
        cin >> entree;
        oranges.push_back(entree);
    }
    for (int i = 0; i < nbActions; i++)
    {
        int typeAction;
        cin >> typeAction;
        if (typeAction == 1)
        {
            int index, valeur;
            cin >> index >> valeur;
            oranges[index - 1] = valeur;
        }
        else
        {
            int debut, fin;
            cin >> debut >> fin;
            resultatsXor.clear();
            for (int i = debut - 1; i < fin; i++)
            {
                int i2 = 1, total = oranges[i];
                resultatsXor.push_back(total);
                while (i + i2 < fin)
                {
                    total = total ^ oranges[i + i2];
                    resultatsXor.push_back(total);
                    i2++;
                }
            }
            int total = resultatsXor[0];
            for (int i = 1; i < int(resultatsXor.size()); i++)
            {
                total = total ^ resultatsXor[i];
            }
            cout << total << endl;
        }
        
    }
    return 0; 
}

• Subtask 1: 12 / 12
• Subtask 2: 18 / 18
• Subtask 3: 0 / 25
• Subtask 4: 0 / 20
• Subtask 5: 0 / 25