Submission #738437

#	Time	Username	Problem	Language	Result	Execution time	Memory
738437		LucaGreg	Carnival (CEOI14_carnival)	C++17	100 / 100	27 ms	280 KiB

carnival

 
#include <bits/stdc++.h>
 
using namespace std;
 
#define pb push_back
#define ff first
#define ss second
//#define int long long int
 
const int INF = 2000000000000000;
const int mod = 1000000007;

int marc[160];
int n;

int bb(int id, int ini, int fim){
    vector<int> query;
    for(int i=ini;i<=fim;i++) if(marc[i]==0) query.pb(i);
    if(query.empty()) return -1;
    cout<<query.size()<<" ";
    for(int i=0;i<(int)query.size();i++) cout<<query[i]<<" ";
    cout<<"\n";
    cout.flush();
    int qtd; cin>>qtd;
    query.pb(id);
    cout<<query.size()<<" ";
    for(int i=0;i<(int)query.size();i++) cout<<query[i]<<" ";
    cout<<"\n";
    cout.flush();
    int qtdId; cin>>qtdId;
    if(qtdId>qtd) return -1;
    while(ini<fim){
        query.clear();
        int m = (ini + fim)/2;
        for(int i=ini;i<=m;i++) if(marc[i]==0) query.pb(i);
        if(query.empty()){
            ini = m + 1;
            continue;
        }
        int auxQtd;
        if((int)query.size()>1){
            cout<<query.size()<<" ";
            for(int i=0;i<(int)query.size();i++) cout<<query[i]<<" ";
            cout<<"\n";
            cout.flush();
            cin>>auxQtd;
        }else{
            auxQtd = 1;
        }
        query.pb(id);
        cout<<query.size()<<" ";
        for(int i=0;i<(int)query.size();i++) cout<<query[i]<<" ";
        cout<<"\n";
        cout.flush();
        int auxQtdId; cin>>auxQtdId;
        if(auxQtdId>auxQtd) ini = m + 1;
        else fim = m;
    }
    return fim;
}

main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(0);
    cin>>n;
    int curType = 1;
    for(int i=1;i<=n;i++){
        if(marc[i]!=0) continue;
        marc[i] = curType;
        while(true){
            int id = bb(i, i + 1, n);
            if(id==-1) break;
            marc[id] = curType;
        }
        curType++;
    }
    cout<<0<<" ";
    for(int i=1;i<=n;i++) cout<<marc[i]<<" ";
    cout<<"\n";
 
    return 0;
}

Compilation message (stderr)

carnival.cpp:11:17: warning: overflow in conversion from 'long int' to 'int' changes value from '2000000000000000' to '1233977344' [-Woverflow]
   11 | const int INF = 2000000000000000;
      |                 ^~~~~~~~~~~~~~~~
carnival.cpp:63:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   63 | main()
      | ^~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20