제출 #752172

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
752172		GrindMachine	Kitchen (BOI19_kitchen)	C++17	100 / 100	23 ms	980 KiB

kitchen

// Om Namah Shivaya

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x, y) ((x + y - 1) / (y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl

#define rep(i, n) for(int i = 0; i < n; ++i)
#define rep1(i, n) for(int i = 1; i <= n; ++i)
#define rev(i, s, e) for(int i = s; i >= e; --i)
#define trav(i, a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a, b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a, b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif

/*



*/

const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;

void solve(int test_case)
{
    ll n,m,k; cin >> n >> m >> k;
    vector<ll> a(n), b(m);
    rep(i,n) cin >> a[i];
    rep(i,m) cin >> b[i];

    if(k > m){
        cout << "Impossible" << endl;
        return;
    }

    rep(i,n){
        if(a[i] < k){
            cout << "Impossible" << endl;
            return;
        }
    }

    ll suma = 0, sumb = 0;
    rep(i,n) suma += a[i];
    rep(i,m) sumb += b[i];
    
    vector<ll> dp(sumb+5, -inf2);
    dp[0] = 0;

    rep(i,m){
        ll x = b[i];
        rev(j,sumb,x){
            amax(dp[j], dp[j-x] + min(x,n));
        }
    }

    for(int j = suma; j <= sumb; ++j){
        if(dp[j] >= n*k){
            ll ans = j - suma;
            cout << ans << endl;
            return;
        }
    }

    cout << "Impossible" << endl;
}

int main()
{
    fastio;

    int t = 1;
    // cin >> t;

    rep1(i, t) {
        solve(i);
    }

    return 0;
}

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