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Submission #995888

# Submission time Handle Problem Language Result Execution time Memory
995888 2024-06-10T03:24:43 Z Thanhs Carnival (CEOI14_carnival) C++14
0 / 100
 21 ms 344 KB 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
 
// #define endl '\n'
#define fastIO ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#define setmin(x,y) x=min((x),(y))
#define setmax(x,y) x=max((x),(y))
#define fi first
#define se second
 
mt19937 hdp(chrono::high_resolution_clock::now().time_since_epoch().count());
int rand(int l,int r){return l+((hdp()%(r-l+1))+r-l+1)%(r-l+1);}

const int N = 2e5+5;
const int mod = 998244353;
const int SQ = 450;
const int inf = 1e9+1;

int n,ans[N],cnt;

int ask(int l,int r)
{
    if(min(l,r)<=0||max(l,r)>n||l>r) return 0;
    cout<<r-l+1<<' ';
    for(int i=l;i<=r;i++) cout<<i<<' ';
    cout<<endl;
    int res; cin>>res;
    return res;
}

signed main()
{
    fastIO
    // freopen("in.txt","r",stdin);
    // freopen("out.txt","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        if(ask(1,i)!=ask(1,i-1))
        {
            ans[i]=cnt++;
            continue;
        }
        int r=i-1,l=0;
        while(l<r-1)
        {
            int m=l+r>>1;
            if(ask(m,i)==ask(m,i-1)) r=m;
            else l=m;
        }
        ans[i]=ans[r];
    }
    for(int i=1;i<=n;i++) cout<<ans[i]<<' ';
    return 0;
}

Compilation message

carnival.cpp: In function 'int main()':
carnival.cpp:51:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   51 |             int m=l+r>>1;
      |                   ~^~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 344 KB Integer 0 violates the range [1, 11]
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 13 ms 344 KB Integer 0 violates the range [1, 5]
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 13 ms 340 KB Integer 0 violates the range [1, 1]
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 18 ms 344 KB Integer 0 violates the range [1, 4]
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 21 ms 340 KB Integer 0 violates the range [1, 2]
2 Halted 0 ms 0 KB -