Submission #1059498

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059498		mindiyak	Kitchen (BOI19_kitchen)	C++14	0 / 100	6 ms	716 KiB

kitchen

#pragma GCC optimize("O1,O2,O3,Ofast,unroll-loops")
#include <bits/stdc++.h>
#include <string>
#include <iostream>
#include <cmath>
#include <numeric>
#include <stack>
#include <queue>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef pair<ld, ld> pd;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<vector<int>> vvi;
typedef vector<vector<pi>> vvpi;
typedef vector<ld> vd;
typedef vector<long long> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
#define FOR(i, a, b) for (int i = a; i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define FORd(i, a, b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i, a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto &a : x)
#define uid(a, b) uniform_int_distribution<int>(a, b)(rng)
#define len(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define F first
#define nl endl
#define S second
#define lb lower_bound
#define ub upper_bound
#define aint(x) x.begin(), x.end()
#define raint(x) x.rbegin(), x.rend()
#define ins insert
const int M = 1e9+7;
void init(string name)
{
    freopen((name + ".in").c_str(), "r", stdin);
    freopen((name + ".out").c_str(), "w", stdout);
}
void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
}

int n,m,k;

void solve()
{
    cin >> n >> m >> k;
    bool ok = 1;
    vi food(n);
    FOR(i,0,n)cin >> food[i];
    vi chefs(n);
    FOR(i,0,m)cin >> chefs[i];

    FOR(i,0,n)ok = ok & (food[i] >= k);
    int suma = 0,sumb = 0;
    FOR(i,0,n)suma += food[i];
    FOR(i,0,m)sumb += chefs[i];
    ok = ok & (sumb >= suma);

    // cerr << ok << endl;

    if(ok == 0){
        cout << "Impossible" << endl;
    }

    const int NMAX = 300*300;

    vi dp(NMAX+2,-1);
    sumb = 0;
    dp[0] = 0;
    for(int i=1;i<=m;i++){
        for(int j=sumb;j>=0;j--){
            if(dp[j]!=-1)
                dp[j+chefs[i-1]]=max(dp[j+chefs[i-1]],dp[j]+min(n,chefs[i-1]));
        }
        sumb += chefs[i-1];
    }

    FOR(i,0,20)cerr << dp[i] << " ";
    cerr  << endl;

    FOR(i,suma,NMAX+1){
        if(dp[i] >= n*k){
            cout << i-suma << endl;
            return;
        }
    }

    cout << "Impossible" << endl;
}   
 
 
int main()
{
    fastIO();
    // init("test");
    int t = 1;
    // cin >> t;
    while (t--)
        solve();
    return 0;
}

Compilation message (stderr)

kitchen.cpp: In function 'void init(std::string)':
kitchen.cpp:44:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |     freopen((name + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kitchen.cpp:45:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |     freopen((name + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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