Submission #1074525

#	Time	Username	Problem	Language	Result	Execution time	Memory
1074525		TheQuantiX	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	1092 ms	596 KiB

biscuits

#include <bits/stdc++.h>
#include "biscuits.h"

using namespace std;
using ll = long long;

ll n, m, q, k, x, y, a, b, c;

long long count_tastiness(long long x, vector<long long> a) {
    ll sum = 0;
    for (int i = 0; i < a.size(); i++) {
        sum += a[i] * (1 << i);
    }
    if (x == 1) {
        ll ans = 1;
        ll mx = 0;
        ll last = 1;
        for (int i = 0; i < a.size(); i++) {
            if (mx < (1LL << i) - 1) {
                ans += mx / last;
                mx = 0;
                last = (1LL << i);
            }
            mx += a[i] * (1LL << i);
        }
        ans += mx / last;
        return ans;
    }
    ll ans = 1;
    for (int i = 1; i <= sum / x; i++) {
        vector<ll> arr = a;
        bool fl = 1;
        for (int j = 0; j < x; j++) {
            ll e = i;
            for (int k = arr.size() - 1; k >= 0; k--) {
                ll x = min(e / (1LL << k), arr[k]);
                arr[k] -= x;
                e -= (1LL << k) * x;
            }
            if (e != 0) {
                fl = 0;
                break;
            }
        }
        if (fl) {
            // cout << i << '\n';
            ans++;
        }
    }
    return ans;
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:11:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for (int i = 0; i < a.size(); i++) {
      |                     ~~^~~~~~~~~~
biscuits.cpp:18:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |         for (int i = 0; i < a.size(); i++) {
      |                         ~~^~~~~~~~~~

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