제출 #328636

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
328636		soroush	Kitchen (BOI19_kitchen)	C++14	51 / 100	22 ms	492 KiB

kitchen

/*
#pragma GCC optimize("O2")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,sse,sse2,fma,tune=native")
//*/
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int  ,int > pii;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll maxn  = 400;
const ll mod =1e9+7;
const ld PI = acos((ld)-1);

#define pb push_back
#define endl '\n'
#define dokme(x) cout << x , exit(0)
#define migmig ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define ms(x , y) memset(x , y , sizeof x)
ll pw(ll a, ll b, ll md = mod){ll res = 1;while(b){if(b&1){res=(a*res)%md;}a=(a*a)%md;b>>=1;}return(res);}

int n , m , k;
int a[maxn];
int b[maxn];
int suma = 0 , sumb = 0;
priority_queue < int > pq;
int vec[maxn];


void sub3(){
	bitset < 90100 > dp;
	dp = 1;
	for(int i = 0 ; i < m ; i ++)
		dp|= (dp << b[i]);
	for(int i = suma ; ; i ++)
		if(dp[i])	
			dokme(i - suma);
}

void sub2(){
	int mn = 1e9;
	for(int i = 0 ; i < (1 << m) ; i ++){
		if(__builtin_popcount(i) < k)continue;
		int sum = 0;
		for(int j = 0 ; j < m ; j ++ )if(i&(1 << j))sum+=b[j];
		if(sum < suma)continue;
		while(pq.size())pq.pop();
		for(int j = 0 ; j < m ; j ++ )if(i&(1 << j))pq.push(b[j]);
		int ok = 1;
		for(int i = 0 ; i < n ; i ++ ){
			int cnt = 0;
			if(pq.size() < k){ok = 0;break;}
			for(int i = 0 ; i < k ; i ++){
				int x = pq.top();
				pq.pop();
				x--;
				if(x)vec[++cnt] = x;
			}
			for(int i = 1 ; i <= cnt ; i ++)pq.push(vec[i]);
		}
		if(ok) mn = min(mn , sum - suma);
	}
	if(mn == 1e9)dokme("Impossible");
	dokme(mn);
}

int32_t main(){
    migmig;
	cin >> n >> m >> k;
	for(int i = 0 ; i < n ; i ++)	
		cin >> a[i], suma+=a[i];
	for(int i = 0 ; i < m ; i ++)
		cin >> b[i], sumb+=b[i];
	sort(a , a + n);
	sort(b , b + m);
	if(m < k)dokme("Impossible");
	if(*min_element(a , a + n) < k)dokme("Impossible");
	if(suma > sumb)dokme("Impossible");
	if(k == 1)
		sub3();
	if(m <= 15)
		sub2();
	



    return(0);
}

컴파일 시 표준 에러 (stderr) 메시지

kitchen.cpp: In function 'void sub2()':
kitchen.cpp:58:17: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   58 |    if(pq.size() < k){ok = 0;break;}
      |       ~~~~~~~~~~^~~

• Subtask 1: 9 / 9
• Subtask 2: 22 / 22
• Subtask 3: 20 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 28