From Trường THPT chuyên Nguyễn Tất Thành, Kon Tum

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#include <bits/stdc++.h>
#define endl "\n"
#define Freopen(a) freopen(a ".inp", "r", stdin), freopen(a ".out", "w", stdout);
#define Fast_IO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define what(x) cerr << #x << " = " << (x) << endl;
#define assertx(x) if (!(x)) cerr << "Assertion failed!\n"<< "Line " << __LINE__ << ": " << #x << endl;abort();
#define all(a) a.begin(), a.end()
#define present(a, n) (find(a.begin(), a.end(), n) != a.end())
#define presentS(a, n) (a.find(n) != a.npos)
#define minElement(a) *min_element(a.begin(), a.end())
#define maxElement(a) *max_element(a.begin(), a.end())
#define isInteger(n) (ceil(n) == floor(n))
#define x first
#define y second
#define inf 1e9 + 7
#define task "task"
using namespace std;

//* Struct and Constant *//
const int MOD = inf;
void printMatrix(vector<vector<int>> a)
{
    for (int i = 0; i < a.size(); i++)
    {
        for (int j = 0; j < a[i].size(); j++)
            cout << a[i][j] << " ";
        cout << endl;
    }
    cout << "-------\n";
}
void printVector(vector<int> a)
{
    for (int i = 0; i < a.size(); i++)
        cout << a[i];
    cout << "-------\n";
}

//* Variable *//

//* Function *//

int main()
{
    Fast_IO 

    return 0;
}

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