Submission #724243

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
724243	2023-04-14 23:43:55	badont	Arranging Shoes (IOI19_shoes)	C++17	100 / 100	75 ms	17176 KiB

shoes

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#include "shoes.h"
#include <cmath>
#include <cstdlib> 
#include <cassert>
using ll = long long;
using namespace std;
template<typename T>
struct fen {
  vector<T> tr;
  ll mxn;
  fen(ll sz) {
    mxn = sz;
    tr.assign(sz + 5, 0);
  }
  void upd(ll g, T k) {
    g++;
    for (; g <= mxn; g += g&-g)
      tr[g] += k;
  }
  T ge(ll g) {
    g++;
    T res = 0;
    for (; g; g -= g&-g)
      res += tr[g];
    return res;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 15 / 15