Submission #773814

#	Time	Username	Problem	Language	Result	Execution time	Memory
773814		t6twotwo	Packing Biscuits (IOI20_biscuits)	C++17	21 / 100	1068 ms	340 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll count_tastiness(ll q, vector<ll> A) {
    A.resize(61);
    if (q == 1) {
        map<ll, ll> mp;
        mp[0] = 1;
        for (int i = 0; i < A.size(); i++) {
            map<ll, ll> t;
            for (auto [add, x] : mp) {
                t[(A[i] + add) / 2] += x;
                if (A[i] + add >= q) {
                    t[(A[i] + add - q) / 2] += x;
                }
            }
            swap(mp, t);
        }
        ll ans = 0;
        for (auto [_, x] : mp) {
            ans += x;
        }
        return ans;
    }
    int ans = 0;
    for (ll i = 0; i <= 100000; i++) {
        auto B = A;
        ans++;
        for (int j = 0; j < 60; j++) {
            if (i >> j & 1) {
                if (B[j] < q) {
                    ans--;
                    break;
                }
                B[j] -= q;
            }
            B[j + 1] += B[j] / 2;
        }
    }
    return ans;   
}

Compilation message (stderr)

biscuits.cpp: In function 'll count_tastiness(ll, std::vector<long long int>)':
biscuits.cpp:10:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |         for (int i = 0; i < A.size(); i++) {
      |                         ~~^~~~~~~~~~

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