Submission #1014551

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014551		Error404	Kitchen (BOI19_kitchen)	C++17	0 / 100	1 ms	2652 KiB

kitchen

#include "bits/stdc++.h"
using namespace std;
#define ll long long
#define f first
#define s second
#define pi pair<ll,ll>
#define vi vector<ll>
#define vd vector<double>
#define vpi vector<pi>
#define pb push_back
#define INF 1e18
#define endl '\n'
//#define int ll
#define pii pair<pi,ll>



const int mod = 1e9+7;
const int MAX = 1e5+1;
const int LOG = 30;
vi g[MAX];
int tin[MAX], val[MAX], tout[MAX];
int up[LOG+1][MAX];
map<pi,int>mp;
vector<pi>order;
int timer = 0;


void dfs(int from,int pr){

    tin[from]= ++timer;
    up[0][from] = pr;
    for(int i=1 ; i <= LOG; i++){    
        up[i][from]  = up[i-1][up[i-1][from]];
    }


    for(int to :g[from]){
        if(to==pr) continue;
        dfs(to,from);
    }
    tout[from]=++timer;
}

bool anc(int u,int v){
    return tin[u]<=tin[v] && tout[u]>=tout[v];   
}
ll dfs1(int from,int pr){
    ll sum = val[from];
    ll hk;
    for(int to :g[from]){
        if(to==pr) continue;
        hk = dfs1(to,from);
        sum+=hk;
        int a = min(from,to);
        int b = max(from,to);
        mp[{a,b}]+=hk;
    }
    return sum;
}


int lca(int u, int v){
    if(anc(u,v)) return u;
    if(anc(v,u)) return v;
    for(int i = LOG; i > 0; i--){
        if(anc(up[i][u], v)) continue;
        u= up[i][u];
    }
    return up[0][u];
}


signed main(){
    int n,m,k,a,b;
    cin >>n >> m >> k;
    int dish[n+1], chef[m+1];

    for(int i= 1; i<= n; i++){
        cin >> dish[i];
    }
    multiset<int>st;
    for(int i = 1; i <=m; i++){
        cin >> chef[i];
        st.insert(chef[i]);
    }

    ll ans = 0;
    bool flag = false;

    for(int i = 1; i <=n; i++){
        auto j = st.lower_bound(dish[i]);
        if(j==st.end()) {
            cout << "Impossible"<<endl;
            return 0;
        }

        ans += (*j)-dish[i];
         st.erase(j);
    }
    cout << ans << endl;

}   

Compilation message (stderr)

kitchen.cpp: In function 'int main()':
kitchen.cpp:75:15: warning: unused variable 'a' [-Wunused-variable]
   75 |     int n,m,k,a,b;
      |               ^
kitchen.cpp:75:17: warning: unused variable 'b' [-Wunused-variable]
   75 |     int n,m,k,a,b;
      |                 ^
kitchen.cpp:89:10: warning: unused variable 'flag' [-Wunused-variable]
   89 |     bool flag = false;
      |          ^~~~

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