Submission #251310

#	Time	Username	Problem	Language	Result	Execution time	Memory
251310		tc_abd	Kitchen (BOI19_kitchen)	C++14	0 / 100	1 ms	384 KiB

kitchen

#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define It it=se.begin();it!=se.end();it++
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define all(x) begin(x),end(x)
#define unmap unordered_map
#define pii pair<int,int>
#include <bits/stdc++.h>
#define pll pair<ll,ll>
#define vll vector<ll>
#define vi vector<int>
#define ld long double
#define ll long long
#define pb push_back
#define sh short int
#define mid (l+r)/2
#define S second
#define F first
#define sqr 447
using namespace std;
const int inf = 1e9+9;
const int mod = 1e9+7;
const ld pai=acos(-1);
int n,m,k;
int a[309];
int b[309];
bool add(multiset < int > &s){
    while(!s.empty() && *s.begin() == 0){
        s.erase(s.find(0));
    }
    if(s.size() < k) return 0;
    vector < int > v;
    for(int i=0;i<k;i++){
        int x = *s.rbegin();
        s.erase(s.find(x));
        v.pb(x-1);
    }
    for(auto u:v){
        s.insert(u);
    }
    return 1;
}
int main(){
    fast,cin>>n>>m>>k;
    for(int i=0;i<n;i++) cin>>a[i];
    for(int i=0;i<m;i++) cin>>b[i];
    sort(a,a+n);
    if(a[0] < k){
        cout<<"Impossible"<<endl;
        return 0;
    }
    multiset < int > se;
    for(int i=0;i<m;i++){
        se.insert(b[i]);
    }
    for(int i=0;i<n;i++){
        if(!add(se)){
            cout<<"Impossible"<<endl;
            return 0;
        }
        a[i] -= k;
    }
    int sum1 = 0;
    for(int i=0;i<n;i++){
        sum1 += a[i];
    }
    int sum2 = 0;
    while(!se.empty()){
        int x = *se.begin();
        se.erase(se.find(x));
        sum2 += x;
    }
    if(sum1 > sum2){
        cout<<"Impossible"<<endl;
        return 0;
    }
    cout<<sum2-sum1<<endl;
}

Compilation message (stderr)

kitchen.cpp: In function 'bool add(std::multiset<int>&)':
kitchen.cpp:30:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(s.size() < k) return 0;
        ~~~~~~~~~^~~

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