Submission #950233

#	Time	Username	Problem	Language	Result	Execution time	Memory
950233		Abito	Cookies (JOI23_cookies)	C++17	0 / 100	1079 ms	27492 KiB

cookies

#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
//#define int long long
#define ll long long
typedef unsigned long long ull;
using namespace std;
const int N=20,M=1e6;
int n,b[N],m,dp[M],k,best[M];
bool sz[N];
vector<int> a,h[M];
vector<vector<int>> ans;
map<vector<int>,int> mp;
bool vis[M];
int rec(int hsh){
    //cout<<hsh<<endl;
    mp[h[hsh]]=hsh;
    bool z=1;
    for (auto u:h[hsh]) z&=(!u);
    if (z) return 0;
    if (vis[hsh]) return dp[hsh];
    dp[hsh]=1e6;vis[hsh]=1;
    for (int i=1;i<(1<<n);i++){
        if (!sz[__builtin_popcount(i)]) continue;
        bool go=1;
        for (int j=0;j<n;j++) if ((i&(1<<j)) && h[hsh][j]<=0) {go=0;break;}
        if (!go) continue;
        vector<int> c(n);
        for (int j=0;j<n;j++) c[j]=h[hsh][j]-bool(i&(1<<j));
        int to=0;
        if (!mp[c]) to=++k,swap(c,h[to]);
        else to=mp[c];
        int x=rec(to)+1;
        if (x<dp[hsh]) dp[hsh]=x,best[hsh]=to;
    }
    return dp[hsh];
}
void getans(int hsh){
    bool z=1;
    for (auto u:h[hsh]) z&=(!u);
    if (z) return;
    vector<int> d;
    for (int i=0;i<n;i++) if (h[best[hsh]][i]<h[hsh][i]) d.pb(i);
    ans.pb(d);
    getans(best[hsh]);
    return;
}
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n;a.resize(n);
    for (int i=0;i<n;i++) cin>>a[i];
    cin>>m;
    for (int j=0;j<m;j++) cin>>b[j],sz[b[j]]=1;
    h[++k]=a;
    int x=rec(1);
    if (x>=1e6){
        cout<<-1<<endl;
        return 0;
    }cout<<x<<endl;
    getans(1);
    for (auto v:ans){
        cout<<v.size()<<' ';
        for (auto u:v) cout<<u+1<<' ';cout<<endl;
    }
    return 0;
}

Compilation message (stderr)

cookies.cpp: In function 'int32_t main()':
cookies.cpp:70:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   70 |         for (auto u:v) cout<<u+1<<' ';cout<<endl;
      |         ^~~
cookies.cpp:70:39: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   70 |         for (auto u:v) cout<<u+1<<' ';cout<<endl;
      |                                       ^~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 45
• Subtask 5: 0 / 15
• Subtask 6: 0 / 15