Submission #925606

#	Time	Username	Problem	Language	Result	Execution time	Memory
925606		vjudge1	Kitchen (BOI19_kitchen)	C++17	0 / 100	49 ms	7516 KiB

kitchen

// By ObeliX
#include <bits/stdc++.h>
#pragma GCC target( "sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#include <unordered_map>
#include <cstddef>
#include <cassert>
#include <bitset>
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <cmath>
#include <queue>
#include <map>
#include <set>

using namespace std;

const long long N = 1e6 + 5;
const long long MOD = 1e7 + 7;
const long long inf = 1e18;

long long n , m , k;
long long a[N] , b[N];
long long dp[3][N];

int main(){
    //freopen( "cinema.in" , "r" , stdin );
    //freopen( "cinema.out" , "w" , stdout );
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m >> k;
    for ( int i = 1 ; i <= n ; i++ ) {
        cin >> a[i];
    }
    for ( int i = 1 ; i <= m ; i++ ) {
        cin >> b[i];
    }
    if ( k == 1 ) {
        sort( b + 1 , b + 1 + m );
        long long sum = 0;
        for ( int i = 1 ; i <= n ; i++ ) {
            sum += a[i];
        }
        dp[1][0] = 1;
        for ( int i = 1 ; i <= m ; i++ ) {
            for ( int j = 1 ; j <= 100000 ; j++ ) {
                if ( b[i] > j ) {
                    continue;
                }
                dp[2][j] = max( dp[2][j] , dp[1][j-b[i]] );
            }
            for ( int j = 0 ; j <= 100000 ; j++ ) {
                dp[1][j] = dp[2][j];
                dp[2][j] = 0;
            }
        }
        long long ans = -1;
        for ( int i = sum ; i <= 100000 ; i++ ) {
            if ( dp[1][i] == 1 ) {
                ans = i;
                break;
            }
        }
        if ( ans == -1 ) {
            cout << "Impossible";
        }
        else {
            cout << ans - sum;
        }
    }
}

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