Submission #306042

#	Time	Username	Problem	Language	Result	Execution time	Memory
306042		eriksuenderhauf	Packing Biscuits (IOI20_biscuits)	C++17	33 / 100	1242 ms	1888152 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define sz(x) (int)(x).size()

ll count_tastiness(ll x, vector<ll> a) {
  while (sz(a) < 60)
    a.push_back(0);
  ll ret = 1;
  vector<vector<ll>> dp(61, vector<ll>(2*x+1, 0));
  dp[0][0] = 1;
  ll pref = 0;
  for (int i = 0; i < 60; i++) {
    pref = pref / 2 + a[i];
    for (int j = 0; j <= min(pref,x); j++) if (dp[i][j] != 0) {
      dp[i+1][pref / 2 - (pref-j) / 2] += dp[i][j];
      if (pref - j >= x) {
        ret += dp[i][j];
        dp[i+1][pref/2-(pref-j-x)/2] += dp[i][j];
      }
    }
  }
  return ret;
}

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