Cod sursa(job #2944723)

Utilizator TeodorLuchianovTeo Luchianov TeodorLuchianov Data 22 noiembrie 2022 21:36:15
Problema Order Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.55 kb
#include <fstream>
#include <vector>

using namespace std;

ifstream in("order.in");
ofstream out("order.out");

struct SegmentTree {
  vector <int> seg;

  SegmentTree(int n = 0) {
    seg.resize(4 * n);
  }

  void update(int node, int from, int to, int pos, int x) {
    if(from == to) {
      seg[node] = x;
    }else {
      int mid = (from + to) / 2;
      if(pos <= mid) {
        update(node * 2, from, mid, pos, x);
      }else {
        update(node * 2 + 1, mid+1, to, pos, x);
      }
      seg[node] = seg[node * 2] + seg[node * 2 + 1];
    }
  }

  int query(int node, int from, int to, int x, int y) {
    if(from == x && to == y) {
      return seg[node];
    }else {
      int mid = (from + to) / 2, ans = 0;
      if(x <= mid) {
        ans += query(node * 2, from, mid, x, min(mid, y));
      }
      if(mid < y) {
        ans += query(node * 2 + 1, mid+1, to, max(mid + 1, x), y);
      }
      return ans;
    }
  }
};

int main() {

  int n, m;
  in >> n;
  m = n;
  SegmentTree seg(n);
  int last = 2;

  for(int i = 1;i <= n;i++) {
    int target = (last + i - 1) % m, index, from = 1, to = n;
    if(target == 0) {
      target = m;
    }
    while(from != to) {
      int mid = (from + to) / 2;
      //cout << from << ' ' << to << ' ' << mid << '\n';
      if(mid - seg.query(1, 1, n, 1, mid) >= target) {
        to = mid;
      }else {
        from = mid+1;
      }
    }
    out << from << ' ';
    seg.update(1, 1, n, from, 1);
    last = target;
    m = m - 1;
  }
  return 0;
}