Submission #836428

#	Time	Username	Problem	Language	Result	Execution time	Memory
836428		NeroZein	비스킷 담기 (IOI20_biscuits)	C++17	9 / 100	196 ms	340 KiB

biscuits

#include "biscuits.h"
#include "bits/stdc++.h"
using namespace std; 

long long count_tastiness(long long x, std::vector<long long> a) {
  long long ret = 1;
  int k = (int) a.size(); 
  if (x != 1) {
    for (int i = 1; (long long) i * x <= (int) 1e5; ++i) {
      vector<long long> b = a; 
      bool ok = true; 
      for (int rep = 0; rep < x; ++rep) {
        int rem = i;
        for (int j = k - 1; j >= 0; --j) {
          int take = rem / (1LL << j); 
          int can_take = min((long long) take, b[j]); 
          b[j] -= can_take;
          rem -= can_take * (1LL << j); 
        }
        ok &= rem == 0;       
      }
      ret += ok; 
    }    
  } else {
    int cnt = 0; 
    for (int i = k - 1; i >= 0; --i) {
      cnt++; 
      if (a[i]) {
        ret += (ret - 1) * min(a[i], ((1LL << cnt) - 1)) + a[i];
        cnt = 0; 
      }
      //cout << ret << '\n'; 
    }
  }
  return ret;
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23