제출 #1180325

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1180325		Pacybwoah	비스킷 담기 (IOI20_biscuits)	C++20	0 / 100	1096 ms	328 KiB

biscuits

#include "biscuits.h"
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2")
#include<iostream>
#include<vector>
#include<algorithm>
#include<utility>
using namespace std;
typedef long long ll;

long long count_tastiness(ll k, std::vector<long long> a) {
	ll sum = 0;
	while(!a.empty() && a.back() == 0) a.pop_back();
	int n = (int)a.size();
	for(int i = 0; i < n; i++) sum += a[i] * (1ll << i);
	vector<ll> ori = a;
	auto f = [&](ll now){
		a = ori;
		for(int times = 0; times < k; times++){
			ll x = now;
			for(int i = n - 1; i >= 0; i--){
				if(x == 0) break;
				ll res = min(a[i], x / (1ll << i));
				x -= res * (1ll << i);
				a[i] -= res;
			}
			if(x != 0) return 0;
		}
		return 1;
	};
	ll ans = 0;
	for(ll i = 0; i * k <= sum; i++){
		ans += f(i);
		//if(f(i) == 1) cout << i << endl;
	}
	return ans;
}

// g++ -std=c++17 -Wall -Wextra -Wshadow -fsanitize=undefined -fsanitize=address -o run -g biscuits.cpp grader.cpp

• Subtask 1: 0 / 9
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• Subtask 5: 0 / 23