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dynamic_array_ps.cpp

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#include <bits/stdc++.h>

#include <iostream>

using namespace std;

int main()

{

int n, q;

int lastAnswer = 0;

cin >> n >> q;

vector<int> v[n];

for (int i = 0; i < q; i++)

{

int a, x, y;

cin >> a;

switch (a)

{

case 1:

{

cin >> x >> y;

int j = ((x ^ lastAnswer) % n);

v[j].emplace_back(y);

break;

}

case 2:

{

cin >> x >> y;

int j = ((x ^ lastAnswer) % n);

int k = y % v[j].size();

lastAnswer = v[j][k];

cout << lastAnswer << endl;

break;

}

default:

break;

}

}

}