Cod sursa(job #2777965)

Utilizator 23liviuStanescu Liviu 23liviu Data 26 septembrie 2021 18:33:19
Problema Schi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.55 kb
#include <fstream>
using namespace std;

template <class TData, class TOver>
class FenwickTree{
public:
    TData* data;
    int len;

    TOver Query(int i)
    {
        TOver sum = 0;
        while(i > 0)
        {
            sum += data[i];
            i -= (i & (-i));
        }
        return sum;
    }

    void UpdateOneBased(int i, TData delta)
    {
        Update(i-1, delta);
    }

    void Update(int i, TData delta)
    {
        ++i;
        while(i < len)
        {
            data[i] += delta;
            i += (i & (-i));
        }
    }

    FenwickTree(int capacity)
    {
        len = capacity + 1;
        data = (TData*) calloc(len, sizeof(TData));
    }
};


int binary(int target, int n, FenwickTree<int,int> aib)
{
    int st, dr, mid;
    st = 1;
    dr = n;
    while(st < dr)
    {
        mid = (st + dr) / 2;
        if(aib.Query(mid) >= target)
            dr = mid;
        else
            st = mid + 1;
    }
    return st;
}

const int MAXN = 30005;
int ans[MAXN], arr[MAXN];

int main()
{
    ifstream cin ("schi.in");
    ofstream cout ("schi.out");
    int n;
    cin >> n;
    FenwickTree<int,int> aib = *(new FenwickTree<int,int>(n));

    for(int i = 0; i < n; i++)
    {
        cin >> arr[i];
        aib.Update(i, 1);
    }
    for(int i = n - 1; i >= 0; i--)
    {
        int bs = binary(arr[i], n, aib);
        ans[bs] = i + 1;
        aib.UpdateOneBased(bs, -1);
    }
    for(int i = 0; i < n; i++)
        cout << ans[i + 1] << "\n";
    return 0;
}