Submission #391201

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
391201	2021-04-18 08:20:36	AlexPop28	Packing Biscuits (IOI20_biscuits)	C++14	0 / 100	1099 ms	119148 KiB

biscuits

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#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
int n;
map<pair<int, long long>, long long> memo;
long long Solve(int i, const vector<long long> &cnt, long long s) {
  if (memo.count({i, s})) return memo[{i, s}];
  if (i == (int)cnt.size()) {
    // cerr << "br 1: " << s << '\n';
    return 1LL;
  }
  long long ret;
  if (cnt[i] < n) {
    ret = Solve(i + 1, cnt, s + (cnt[i] << i));
    if (s + (cnt[i] << i) >=  (n << i)) {
      ret += Solve(i + 1, cnt, s + (cnt[i] << i) - (n << i));
    }
  } else {
    ret = Solve(i + 1, cnt, s + ((cnt[i] - n) << i));
    ret += Solve(i + 1, cnt, s + (cnt[i] << i));
  }
  // cerr << i << ' ' << s << ' ' << ret << endl;
  return memo[{i, s}] = ret; 
}
long long count_tastiness(long long n, vector<long long> a) {
 
 
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• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23