Submission #584231

#	Time	Username	Problem	Language	Result	Execution time	Memory
584231		amunduzbaev	Kitchen (BOI19_kitchen)	C++17	0 / 100	142 ms	112748 KiB

kitchen

#include "bits/stdc++.h"
using namespace std;
 
#define ar array
typedef int64_t ll;
//~ #define int ll

const int N = 305;
int a[N], b[N];
bitset<N * N> tp[N];
int dd[N][N * N];
int dp[N * N];

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);
	
	int n, m, k; cin>>n>>m>>k;
	for(int i=0;i<n;i++){
		cin>>a[i];
		if(a[i] < k){
			cout<<"impossible\n";
			return 0;
		}
	}
	for(int i=0;i<m;i++){
		cin>>b[i];
	}
	
	int sum = accumulate(a, a + n, 0);
	sort(b, b + m);
	int l = m, tot = 0;
	dp[0] = 1;
	for(int i=0;i<m;i++){
		if(b[i] > n) { l = i; break; }
		tot += b[i];
		for(int j = tot;j >= b[i];j--){
			dp[j] |= dp[j - b[i]];
		}
	}
	
	tp[0][0] = 1;
	for(int i=l;i<m;i++){
		int v = b[i] - n;
		for(int j=m-l;j>0;j--){
			tp[j] |= (tp[j - 1] << v);
		}
	}
	
	
	
	for(int j=0;j<N;j++){
		dd[j][N * N - 1] = 1e9;
		for(int k=N * N - 2;~k;k--){
			if(tp[j][k]) dd[j][k] = k;
			else dd[j][k] = dd[j][k + 1];
		}
	}
	
	int res = 1e9, c = 0;
	while(c <= m - l && sum >= 0){
		for(int j=k * n;j<=tot;j++){
			if(dp[j]){
				res = min(res, j + dd[c][sum - j] - sum);
			}
		}
		
		//~ cout<<c<<" "<<res<<"\n";
		sum -= n, c++;
		if(k) k--;
	}
	
	if(res == 1e9) cout<<"impossible\n";
	else cout<<res<<"\n";
}

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